Contract

Test(TEST)0xEb1012c0Eb4167dc4142124189aeee2A9777e0cC

Overview

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0.00015 ETH

ETH Value

$0.28 (@ $1,894/ETH)

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Test (TEST)→ token page

Contract Creator

0x4e59…956c at txn 0x7e5617…8351b9

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27,748,984	13 days agoTue, 04 Aug 2026 15:56:43 UTC	0x7e5617…8351b9	CREATE2	optimized_routeFill921336808	0x4e59…956c	IN	0xeb10…e0cc	0 ETH

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✓ VerifiedExact MatchTest⤢ Open full

Contract Name

Test

Compiler

solidity · v0.8.26+commit.8a97fa7a

Optimization

Yes · 200 runs

EVM Version

cancun

Source

Mirrored from Robinhood Chain explorer

Contract Source Code

Outline

C Test

ƒ floorWeiPerToken

ƒ marketWeiPerToken

ƒ drawdownTicks

ƒ quoteRedeem

ƒ redeem

ƒ getHookPermissions

ƒ _beforeInitialize

ƒ _beforeSwap

ƒ _afterSwap

ƒ _credit

ƒ claimTreasury

ƒ _observe

ƒ _decayHigh

ƒ _maybeBuyback

ƒ _armTier

ƒ _atFloor

ƒ _marketWeiPerToken

ƒ _buyback

ƒ _lock

ƒ _unlock

ƒ _locked

Test.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.26;

import {BaseHook} from "@openzeppelin/uniswap-hooks/src/base/BaseHook.sol";
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {Hooks} from "@uniswap/v4-core/src/libraries/Hooks.sol";
import {IPoolManager, SwapParams} from "@uniswap/v4-core/src/interfaces/IPoolManager.sol";
import {PoolKey} from "@uniswap/v4-core/src/types/PoolKey.sol";
import {PoolId, PoolIdLibrary} from "@uniswap/v4-core/src/types/PoolId.sol";
import {BalanceDelta} from "@uniswap/v4-core/src/types/BalanceDelta.sol";
import {BeforeSwapDelta, BeforeSwapDeltaLibrary, toBeforeSwapDelta} from "@uniswap/v4-core/src/types/BeforeSwapDelta.sol";
import {Currency, CurrencyLibrary} from "@uniswap/v4-core/src/types/Currency.sol";
import {StateLibrary} from "@uniswap/v4-core/src/libraries/StateLibrary.sol";
import {TickMath} from "@uniswap/v4-core/src/libraries/TickMath.sol";
import {FullMath} from "@uniswap/v4-core/src/libraries/FullMath.sol";

/// @title Test
/// @notice ERC-20 + Uniswap v4 hook. Every swap pays 3% in native ETH, split three ways:
///
///         treasury 1.5% → creator revenue, accrued and pulled, never touches the floor
///         reserve  0.75% → any holder may burn tokens and withdraw `reserve / totalSupply` at
///                    any time. A 2% exit fee stays behind, so every redemption lifts the floor.
///         fund     0.75% → idle in a calm market. Deploys only on drawdowns from a decaying
///                    trailing high, on a fixed ladder, with a cooldown. Everything bought burns.
///
///         Both floor operations are accretive by construction:
///           redeem   f'/f = (S - 0.98·Δ)/(S - Δ) > 1
///           buyback  R unchanged, S falls  ⇒  f = R/S rises
///         so `floorWeiPerToken()` is monotonically non-decreasing in ETH terms.
///
/// @dev No owner, no admin key, no upgrade path, no mint. TREASURY is immutable and can only
///      ever receive its own accrued share — it cannot reach the reserve or the fund.
contract Test is ERC20, BaseHook {
    using PoolIdLibrary for PoolKey;
    using StateLibrary for IPoolManager;

    // ░░░░░ constants ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    uint256 public constant TOTAL_SUPPLY = 1_000_000 * 10 ** 18;

    /// @notice Total swap fee, both directions, charged in native ETH.
    /// @dev With LP_FEE on top the trader pays 3.3% per side, 6.6% round trip. That is steep, and
    ///      volume is the only thing that feeds the floor — see TREASURY_FEE_BPS.
    uint16 public constant FEE_BPS = 300;
    /// @notice The creator's cut of FEE_BPS. The remainder splits 50/50 into reserve and fund.
    /// @dev Every bp here is a bp that does not reach the floor: the floor accrues at
    ///      (FEE_BPS - TREASURY_FEE_BPS)/2 = 0.75% of volume either way, so raising this does not
    ///      slow the floor directly — it only raises the toll, which suppresses the volume the
    ///      floor is built from.
    uint16 public constant TREASURY_FEE_BPS = 150;
    /// @notice Withheld on redemption. Stays in the reserve and lifts the floor for everyone else.
    uint16 public constant REDEEM_FEE_BPS = 200;

    /// @notice The pool's own LP fee, pinned so only one pool shape can ever bind to this hook.
    /// @dev 3000 matches the house launch pattern, and it stacks: the trader pays FEE_BPS on top,
    ///      ~1.8% per side. It also means the launch LP position earns real income, so locking it
    ///      by burning the NFT forfeits that — a factory-held position does not. Set to 0 to make
    ///      the hook fee the trader's entire cost.
    uint24 public constant LP_FEE = 3000;

    // ── drawdown ladder ─────────────────────────────────────────
    // Measured in ticks against the trailing high. currency0 is native ETH, so the token's
    // price is 1.0001^(-tick): the token makes a new high when the tick makes a new LOW, and a
    // drawdown is the tick rising above `refTick`.
    //   -8%  → ln(0.92)/ln(1.0001) ≈  +834 ticks
    //   -15% → ln(0.85)/ln(1.0001) ≈ +1625 ticks
    //   -25% → ln(0.75)/ln(1.0001) ≈ +2877 ticks
    int24 public constant TIER1_TICKS = 834;
    int24 public constant TIER2_TICKS = 1625;
    int24 public constant TIER3_TICKS = 2877;
    uint16 public constant TIER1_BPS = 1000; // 10% of fund
    uint16 public constant TIER2_BPS = 2500; // 25%
    uint16 public constant TIER3_BPS = 5000; // 50%
    uint16 public constant TIER_FLOOR_BPS = 10_000; // at the floor: everything

    uint64 public constant BUYBACK_COOLDOWN = 30 minutes;

    // ── oracle ──────────────────────────────────────────────────
    // Truncated, time-weighted EMA of the pool tick. Two independent costs to move it: a single
    // observation can shift it by at most MAX_TICK_MOVE, and the weight of any observation is
    // dt/(dt+TAU), so holding a manipulated price costs wall-clock time, not just capital.
    uint64 public constant EMA_TAU = 30 minutes;
    int24 public constant MAX_TICK_MOVE = 400; // ~4% per observation

    // ── trailing-high decay ─────────────────────────────────────
    // Without decay a single wick pins `refTick` forever and every later price reads as a deep
    // drawdown, draining the fund one cooldown at a time. The high therefore bleeds back toward
    // the market after a week of no new high.
    uint64 public constant HIGH_STALE_AFTER = 7 days;
    int24 public constant HIGH_DECAY_TICKS_PER_DAY = 100; // ~1%/day

    uint160 public constant HOOK_FLAGS = uint160(
        Hooks.BEFORE_SWAP_FLAG | Hooks.AFTER_SWAP_FLAG | Hooks.BEFORE_SWAP_RETURNS_DELTA_FLAG
            | Hooks.AFTER_SWAP_RETURNS_DELTA_FLAG | Hooks.BEFORE_INITIALIZE_FLAG
    );

    uint256 private constant Q96 = 1 << 96;
    /// @dev Transient slot guarding the hook's own buyback swap against re-entering its own fee
    ///      and trigger logic. Requires the cancun evm_version already set in foundry.toml.
    uint256 private constant LOCK_SLOT = 0;

    // ░░░░░ vaults ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    /// @notice Backs the redemption floor. Only `redeem` may reduce it.
    uint128 public reserveWei;
    /// @notice Counter-cyclical buyback fund. Only `_buyback` may reduce it.
    uint128 public buybackWei;
    /// @notice Accrued creator revenue, awaiting `claimTreasury`.
    /// @dev Accrued and pulled rather than pushed inside the swap. A push would put an external
    ///      call on the hot path of every trade: a TREASURY that reverts on receive would brick
    ///      every swap and kill the token outright.
    uint128 public treasuryWei;

    /// @notice Immutable recipient of TREASURY_FEE_BPS. Set once at deploy, never changeable.
    address public immutable TREASURY;

    // ░░░░░ oracle state ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    PoolId public poolId;
    bool public poolBound;

    int24 public emaTick;
    int24 public refTick; // trailing high of the token = lowest EMA tick seen
    uint64 public lastObsTime;
    uint64 public lastHighTime;
    uint64 public lastDecayTime;
    uint64 public lastBuybackTime;
    /// @dev bit0/1/2 = tier fired during this descent, bit3 = fund emptied at the floor.
    ///      Cleared when the price recovers to within TIER1 of the high.
    uint8 public firedMask;

    // ░░░░░ stats ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    uint128 public totalFeesWei;
    uint128 public totalRedeemedWei;
    uint128 public totalBuybackWei;
    uint128 public totalTreasuryWei;
    uint256 public totalBurned;
    uint64 public totalSwaps;

    // ░░░░░ events ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    event FeeTaken(address indexed trader, uint128 toReserve, uint128 toFund, uint128 toTreasury, bool isBuy);
    event TreasuryClaimed(address indexed to, uint256 amount);
    event Redeemed(address indexed holder, uint256 burned, uint256 paidWei, uint256 keptWei);
    event NewHigh(int24 tick, uint64 at);
    event HighDecayed(int24 from, int24 to);
    event Buyback(uint16 tierBps, uint256 spentWei, uint256 burnedTokens, int24 drawdownTicks);

    // ░░░░░ errors ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    error BadPoolShape();
    error AlreadyBound();
    error NothingToRedeem();
    error EmptyReserve();
    error PayoutFailed();

    // ░░░░░ constructor ░░░━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

    constructor(IPoolManager _poolManager, address _owner, address _treasury)
        ERC20("Test", "TEST")
        BaseHook(_poolManager)
    {
        if (_treasury == address(0)) revert BadPoolShape();
        TREASURY = _treasury;
        _mint(_owner, TOTAL_SUPPLY);
    }

    receive() external payable {}

    // ░░░░░ views ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    /// @notice Wei backing one whole token. Never decreases.
    function floorWeiPerToken() public view returns (uint256) {
        uint256 supply = totalSupply();
        if (supply == 0) return 0;
        return FullMath.mulDiv(reserveWei, 1e18, supply);
    }

    /// @notice Pool price in wei per whole token, from live slot0.
    function marketWeiPerToken() public view returns (uint256) {
        if (!poolBound) return 0;
        (uint160 sqrtPriceX96,,,) = poolManager.getSlot0(poolId);
        return _marketWeiPerToken(sqrtPriceX96);
    }

    /// @notice Current drawdown against the trailing high, in ticks. 0 when at or above the high.
    function drawdownTicks() public view returns (int24) {
        int24 dd = emaTick - refTick;
        return dd > 0 ? dd : int24(0);
    }

    /// @notice What `redeem(amount)` pays out right now.
    function quoteRedeem(uint256 amount) public view returns (uint256 payout, uint256 kept) {
        uint256 supply = totalSupply();
        if (supply == 0 || amount == 0) return (0, 0);
        uint256 gross = FullMath.mulDiv(amount, reserveWei, supply);
        kept = (gross * REDEEM_FEE_BPS + 9_999) / 10_000; // round the exit fee up
        payout = gross - kept;
    }

    // ░░░░░ redemption ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    /// @notice Burn `amount` and withdraw its share of the reserve, less the 2% exit fee.
    /// @dev Payout rounds down and the exit fee rounds up, so rounding can only favour the
    ///      reserve — the floor invariant survives integer division.
    function redeem(uint256 amount) external {
        if (amount == 0) revert NothingToRedeem();
        if (reserveWei == 0) revert EmptyReserve();

        (uint256 payout, uint256 kept) = quoteRedeem(amount);

        // effects before interaction: burn, then debit the reserve, then pay.
        _burn(msg.sender, amount);
        reserveWei -= uint128(payout);
        totalRedeemedWei += uint128(payout);
        totalBurned += amount;

        emit Redeemed(msg.sender, amount, payout, kept);

        if (payout != 0) {
            (bool ok,) = msg.sender.call{value: payout}("");
            if (!ok) revert PayoutFailed();
        }
    }

    // ░░░░░ hook wiring ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    function getHookPermissions() public pure override returns (Hooks.Permissions memory) {
        return Hooks.Permissions({
            beforeInitialize: true,
            afterInitialize: false,
            beforeAddLiquidity: false,
            afterAddLiquidity: false,
            beforeRemoveLiquidity: false,
            afterRemoveLiquidity: false,
            beforeSwap: true,
            afterSwap: true,
            beforeDonate: false,
            afterDonate: false,
            beforeSwapReturnDelta: true,
            afterSwapReturnDelta: true,
            afterAddLiquidityReturnDelta: false,
            afterRemoveLiquidityReturnDelta: false
        });
    }

    /// @dev Binds to exactly one pool: native ETH / this token at LP_FEE. Anything else is
    ///      rejected, so the oracle and the ladder can never be pointed at a second market.
    function _beforeInitialize(address, PoolKey calldata key, uint160 sqrtPriceX96)
        internal
        override
        returns (bytes4)
    {
        if (poolBound) revert AlreadyBound();
        if (
            !key.currency0.isAddressZero() || Currency.unwrap(key.currency1) != address(this)
                || key.fee != LP_FEE || address(key.hooks) != address(this)
        ) revert BadPoolShape();

        poolId = key.toId();
        poolBound = true;

        int24 tick = TickMath.getTickAtSqrtPrice(sqrtPriceX96);
        emaTick = tick;
        refTick = tick;
        lastObsTime = uint64(block.timestamp);
        lastHighTime = uint64(block.timestamp);
        lastDecayTime = uint64(block.timestamp);

        return BaseHook.beforeInitialize.selector;
    }

    // ░░░░░ BUY: fee on ETH in ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    function _beforeSwap(address, PoolKey calldata key, SwapParams calldata params, bytes calldata)
        internal
        override
        returns (bytes4, BeforeSwapDelta, uint24)
    {
        // the hook's own buyback pays no fee and triggers nothing
        if (_locked()) return (BaseHook.beforeSwap.selector, BeforeSwapDeltaLibrary.ZERO_DELTA, 0);

        // exact-input buy only; exact-output buys are charged in _afterSwap, where the ETH
        // actually paid is known.
        if (!params.zeroForOne || params.amountSpecified >= 0) {
            return (BaseHook.beforeSwap.selector, BeforeSwapDeltaLibrary.ZERO_DELTA, 0);
        }

        uint256 inputEth = uint256(-params.amountSpecified);
        uint128 fee = uint128((inputEth * FEE_BPS) / 10_000);
        if (fee == 0) return (BaseHook.beforeSwap.selector, BeforeSwapDeltaLibrary.ZERO_DELTA, 0);

        poolManager.take(key.currency0, address(this), fee);
        _credit(fee, true);

        return (BaseHook.beforeSwap.selector, toBeforeSwapDelta(int128(int256(uint256(fee))), 0), 0);
    }

    // ░░░░░ SELL: fee on ETH out · then observe · then maybe buy ░░

    function _afterSwap(address, PoolKey calldata key, SwapParams calldata params, BalanceDelta delta, bytes calldata)
        internal
        override
        returns (bytes4, int128)
    {
        if (_locked()) return (BaseHook.afterSwap.selector, 0);

        unchecked {
            totalSwaps++;
        }

        int128 amount0 = delta.amount0();
        int128 hookDelta = 0;

        if (amount0 > 0) {
            // sell: pool owes ETH to the swapper, skim the fee off the output
            uint128 fee = uint128((uint256(uint128(amount0)) * FEE_BPS) / 10_000);
            if (fee != 0) {
                poolManager.take(key.currency0, address(this), fee);
                _credit(fee, false);
                hookDelta = int128(int256(uint256(fee)));
            }
        } else if (amount0 < 0 && params.zeroForOne && params.amountSpecified > 0) {
            // exact-output buy: ETH in was unknown in _beforeSwap, charge it here on the
            // unspecified currency so the exact-output path cannot be used to dodge the fee.
            uint128 fee = uint128((uint256(uint128(-amount0)) * FEE_BPS) / 10_000);
            if (fee != 0) {
                poolManager.take(key.currency0, address(this), fee);
                _credit(fee, true);
                hookDelta = int128(int256(uint256(fee)));
            }
        }

        // An empty pool has no meaningful tick: the price sits wherever the last swap ran out of
        // liquidity, which is free to place anywhere. Feed the oracle nothing in that state.
        if (poolManager.getLiquidity(poolId) != 0) {
            (, int24 tick,,) = poolManager.getSlot0(poolId);
            _observe(tick);
            _maybeBuyback(key);
        }

        return (BaseHook.afterSwap.selector, hookDelta);
    }

    // ░░░░░ fee split ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    function _credit(uint128 fee, bool isBuy) private {
        uint128 toTreasury = uint128((uint256(fee) * TREASURY_FEE_BPS) / FEE_BPS);
        uint128 rest = fee - toTreasury;
        uint128 toReserve = rest / 2;
        uint128 toFund = rest - toReserve; // odd wei goes to the fund

        reserveWei += toReserve;
        buybackWei += toFund;
        treasuryWei += toTreasury;

        totalFeesWei += fee;
        totalTreasuryWei += toTreasury;

        emit FeeTaken(msg.sender, toReserve, toFund, toTreasury, isBuy);
    }

    /// @notice Send the accrued creator revenue to TREASURY. Permissionless: the destination is
    ///         immutable, so it does not matter who pays the gas to push it.
    function claimTreasury() external {
        uint256 amount = treasuryWei;
        if (amount == 0) return;
        treasuryWei = 0;
        (bool ok,) = TREASURY.call{value: amount}("");
        if (!ok) revert PayoutFailed();
        emit TreasuryClaimed(TREASURY, amount);
    }

    // ░░░░░ oracle ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    /// @dev Time-weighted EMA with a per-observation truncation. Two swaps in the same second
    ///      move it once; a flash move is capped at MAX_TICK_MOVE and decays out.
    function _observe(int24 tick) private {
        uint64 nowTs = uint64(block.timestamp);
        uint64 dt = nowTs - lastObsTime;
        if (dt == 0) return; // same-timestamp swaps carry no oracle weight

        int256 diff = int256(tick) - int256(emaTick);
        if (diff > int256(MAX_TICK_MOVE)) diff = int256(MAX_TICK_MOVE);
        if (diff < -int256(MAX_TICK_MOVE)) diff = -int256(MAX_TICK_MOVE);

        int256 step = (diff * int256(uint256(dt))) / int256(uint256(dt) + uint256(EMA_TAU));
        emaTick = int24(int256(emaTick) + step);
        lastObsTime = nowTs;

        _decayHigh(nowTs);

        if (emaTick < refTick) {
            // lower tick = higher token price = new high
            refTick = emaTick;
            lastHighTime = nowTs;
            lastDecayTime = nowTs;
            firedMask = 0;
            emit NewHigh(emaTick, nowTs);
        } else if (emaTick - refTick < TIER1_TICKS) {
            // recovered to within the first rung: the whole ladder re-arms
            firedMask = 0;
        }
    }

    function _decayHigh(uint64 nowTs) private {
        if (nowTs <= lastHighTime + HIGH_STALE_AFTER) return;
        uint64 elapsed = nowTs - lastDecayTime;
        if (elapsed < 1 days) return;

        uint64 steps = elapsed / 1 days;
        int24 from = refTick;
        int256 moved = int256(refTick) + int256(uint256(steps)) * int256(HIGH_DECAY_TICKS_PER_DAY);
        if (moved > int256(emaTick)) moved = int256(emaTick);
        refTick = int24(moved);
        lastDecayTime += steps * 1 days;

        if (from != refTick) emit HighDecayed(from, refTick);
    }

    // ░░░░░ counter-cyclical buyback ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    function _maybeBuyback(PoolKey calldata key) private {
        if (buybackWei == 0) return;
        if (block.timestamp < uint256(lastBuybackTime) + BUYBACK_COOLDOWN) return;
        // a tick with no liquidity behind it is not a price; never act on one
        if (poolManager.getLiquidity(poolId) == 0) return;

        uint16 bps = _armTier();
        if (bps == 0) return;

        uint256 spend = (uint256(buybackWei) * bps) / 10_000;
        if (spend == 0) return;

        lastBuybackTime = uint64(block.timestamp);
        _buyback(key, spend, bps);
    }

    /// @dev Returns the share of the fund to deploy and marks the rung as fired. Each rung fires
    ///      once per descent; a higher rung also consumes the ones beneath it, so a gap-down
    ///      straight to -25% does not later re-fire -8% and -15% on the way back up.
    function _armTier() private returns (uint16) {
        if (_atFloor()) {
            if (firedMask & 8 != 0) return 0;
            firedMask = 0x0F;
            return TIER_FLOOR_BPS;
        }

        int24 dd = emaTick - refTick;
        if (dd >= TIER3_TICKS && firedMask & 4 == 0) {
            firedMask |= 0x07;
            return TIER3_BPS;
        }
        if (dd >= TIER2_TICKS && firedMask & 2 == 0) {
            firedMask |= 0x03;
            return TIER2_BPS;
        }
        if (dd >= TIER1_TICKS && firedMask & 1 == 0) {
            firedMask |= 0x01;
            return TIER1_BPS;
        }
        return 0;
    }

    /// @dev EMA, never spot. Spot looks like the right input — "at the floor" reads as a live
    ///      arbitrage condition — but a swap that exhausts in-range liquidity leaves the tick in
    ///      a region with no liquidity behind it, where it travels to MAX_TICK for free. Spot
    ///      then reports a token price of ~0 and this branch hands over the entire fund on
    ///      demand, at any time, with no drawdown and no capital. Observed on testnet: one sell
    ///      pushed the tick to 887271 with liquidity 0 and drained the fund in a single tx.
    ///      The EMA truncation absorbed that same jump down to 1 tick, so route through it.
    function _atFloor() private view returns (bool) {
        uint256 f = floorWeiPerToken();
        if (f == 0) return false;
        return _marketWeiPerToken(TickMath.getSqrtPriceAtTick(emaTick)) <= f;
    }

    function _marketWeiPerToken(uint160 sqrtPriceX96) private pure returns (uint256) {
        // currency0 = ETH, currency1 = token, so sqrtPriceX96 = sqrt(tokens per wei) · 2^96
        // wei per whole token = 1e18 · (2^96 / sqrtPriceX96)^2
        uint256 x = FullMath.mulDiv(1e18, Q96, sqrtPriceX96);
        return FullMath.mulDiv(x, Q96, sqrtPriceX96);
    }

    /// @dev Re-enters PoolManager.swap inside afterSwap. The global lock is already held by the
    ///      original unlocker, so the nested swap only has to settle its own deltas before
    ///      returning. The transient flag stops it from paying our own fee or arming the ladder.
    function _buyback(PoolKey calldata key, uint256 spend, uint16 bps) private {
        _lock();

        BalanceDelta d = poolManager.swap(
            key,
            SwapParams({
                zeroForOne: true, // ETH in, token out
                amountSpecified: -int256(spend), // exact input
                sqrtPriceLimitX96: TickMath.MIN_SQRT_PRICE + 1
            }),
            ""
        );

        // we owe currency0, we are owed currency1
        poolManager.sync(CurrencyLibrary.ADDRESS_ZERO); // reset synced currency → settle native
        poolManager.settle{value: spend}();

        uint256 got = uint256(uint128(d.amount1()));
        poolManager.take(key.currency1, address(this), got);

        buybackWei -= uint128(spend);
        totalBuybackWei += uint128(spend);
        totalBurned += got;

        _burn(address(this), got);

        _unlock();

        emit Buyback(bps, spend, got, emaTick - refTick);
    }

    // ░░░░░ transient re-entrancy flag ░░░░░░░░░░░░░░░░░░░░░░░░░░░

    function _lock() private {
        assembly ("memory-safe") {
            tstore(LOCK_SLOT, 1)
        }
    }

    function _unlock() private {
        assembly ("memory-safe") {
            tstore(LOCK_SLOT, 0)
        }
    }

    function _locked() private view returns (bool f) {
        assembly ("memory-safe") {
            f := tload(LOCK_SLOT)
        }
    }
}

Contract ABI

[
 {
  "type": "constructor",
  "inputs": [
   {
    "name": "_poolManager",
    "type": "address",
    "internalType": "contract IPoolManager"
   },
   {
    "name": "_owner",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "_treasury",
    "type": "address",
    "internalType": "address"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "AlreadyBound",
  "type": "error",
  "inputs": []
 },
 {
  "name": "BadPoolShape",
  "type": "error",
  "inputs": []
 },
 {
  "name": "ERC20InsufficientAllowance",
  "type": "error",
  "inputs": [
   {
    "name": "spender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "allowance",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "needed",
    "type": "uint256",
    "internalType": "uint256"
   }
  ]
 },
 {
  "name": "ERC20InsufficientBalance",
  "type": "error",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "balance",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "needed",
    "type": "uint256",
    "internalType": "uint256"
   }
  ]
 },
 {
  "name": "ERC20InvalidApprover",
  "type": "error",
  "inputs": [
   {
    "name": "approver",
    "type": "address",
    "internalType": "address"
   }
  ]
 },
 {
  "name": "ERC20InvalidReceiver",
  "type": "error",
  "inputs": [
   {
    "name": "receiver",
    "type": "address",
    "internalType": "address"
   }
  ]
 },
 {
  "name": "ERC20InvalidSender",
  "type": "error",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   }
  ]
 },
 {
  "name": "ERC20InvalidSpender",
  "type": "error",
  "inputs": [
   {
    "name": "spender",
    "type": "address",
    "internalType": "address"
   }
  ]
 },
 {
  "name": "EmptyReserve",
  "type": "error",
  "inputs": []
 },
 {
  "name": "HookNotImplemented",
  "type": "error",
  "inputs": []
 },
 {
  "name": "NotPoolManager",
  "type": "error",
  "inputs": []
 },
 {
  "name": "NothingToRedeem",
  "type": "error",
  "inputs": []
 },
 {
  "name": "PayoutFailed",
  "type": "error",
  "inputs": []
 },
 {
  "name": "Approval",
  "type": "event",
  "inputs": [
   {
    "name": "owner",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "spender",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "value",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   }
  ],
  "anonymous": false
 },
 {
  "name": "Buyback",
  "type": "event",
  "inputs": [
   {
    "name": "tierBps",
    "type": "uint16",
    "indexed": false,
    "internalType": "uint16"
   },
   {
    "name": "spentWei",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   },
   {
    "name": "burnedTokens",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   },
   {
    "name": "drawdownTicks",
    "type": "int24",
    "indexed": false,
    "internalType": "int24"
   }
  ],
  "anonymous": false
 },
 {
  "name": "FeeTaken",
  "type": "event",
  "inputs": [
   {
    "name": "trader",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "toReserve",
    "type": "uint128",
    "indexed": false,
    "internalType": "uint128"
   },
   {
    "name": "toFund",
    "type": "uint128",
    "indexed": false,
    "internalType": "uint128"
   },
   {
    "name": "toTreasury",
    "type": "uint128",
    "indexed": false,
    "internalType": "uint128"
   },
   {
    "name": "isBuy",
    "type": "bool",
    "indexed": false,
    "internalType": "bool"
   }
  ],
  "anonymous": false
 },
 {
  "name": "HighDecayed",
  "type": "event",
  "inputs": [
   {
    "name": "from",
    "type": "int24",
    "indexed": false,
    "internalType": "int24"
   },
   {
    "name": "to",
    "type": "int24",
    "indexed": false,
    "internalType": "int24"
   }
  ],
  "anonymous": false
 },
 {
  "name": "NewHigh",
  "type": "event",
  "inputs": [
   {
    "name": "tick",
    "type": "int24",
    "indexed": false,
    "internalType": "int24"
   },
   {
    "name": "at",
    "type": "uint64",
    "indexed": false,
    "internalType": "uint64"
   }
  ],
  "anonymous": false
 },
 {
  "name": "Redeemed",
  "type": "event",
  "inputs": [
   {
    "name": "holder",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "burned",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   },
   {
    "name": "paidWei",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   },
   {
    "name": "keptWei",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   }
  ],
  "anonymous": false
 },
 {
  "name": "Transfer",
  "type": "event",
  "inputs": [
   {
    "name": "from",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "to",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "value",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   }
  ],
  "anonymous": false
 },
 {
  "name": "TreasuryClaimed",
  "type": "event",
  "inputs": [
   {
    "name": "to",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "amount",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   }
  ],
  "anonymous": false
 },
 {
  "name": "BUYBACK_COOLDOWN",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "EMA_TAU",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "FEE_BPS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint16",
    "internalType": "uint16"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "HIGH_DECAY_TICKS_PER_DAY",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "HIGH_STALE_AFTER",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "HOOK_FLAGS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint160",
    "internalType": "uint160"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "LP_FEE",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint24",
    "internalType": "uint24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "MAX_TICK_MOVE",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "REDEEM_FEE_BPS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint16",
    "internalType": "uint16"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TIER1_BPS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint16",
    "internalType": "uint16"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TIER1_TICKS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TIER2_BPS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint16",
    "internalType": "uint16"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TIER2_TICKS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TIER3_BPS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint16",
    "internalType": "uint16"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TIER3_TICKS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TIER_FLOOR_BPS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint16",
    "internalType": "uint16"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TOTAL_SUPPLY",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TREASURY",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "address",
    "internalType": "address"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TREASURY_FEE_BPS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint16",
    "internalType": "uint16"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "afterAddLiquidity",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "params",
    "type": "tuple",
    "components": [
     {
      "name": "tickLower",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "tickUpper",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "liquidityDelta",
      "type": "int256",
      "internalType": "int256"
     },
     {
      "name": "salt",
      "type": "bytes32",
      "internalType": "bytes32"
     }
    ],
    "internalType": "struct ModifyLiquidityParams"
   },
   {
    "name": "delta0",
    "type": "int256",
    "internalType": "BalanceDelta"
   },
   {
    "name": "delta1",
    "type": "int256",
    "internalType": "BalanceDelta"
   },
   {
    "name": "hookData",
    "type": "bytes",
    "internalType": "bytes"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   },
   {
    "name": "",
    "type": "int256",
    "internalType": "BalanceDelta"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "afterDonate",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "amount0",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "amount1",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "hookData",
    "type": "bytes",
    "internalType": "bytes"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "afterInitialize",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "sqrtPriceX96",
    "type": "uint160",
    "internalType": "uint160"
   },
   {
    "name": "tick",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "afterRemoveLiquidity",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "params",
    "type": "tuple",
    "components": [
     {
      "name": "tickLower",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "tickUpper",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "liquidityDelta",
      "type": "int256",
      "internalType": "int256"
     },
     {
      "name": "salt",
      "type": "bytes32",
      "internalType": "bytes32"
     }
    ],
    "internalType": "struct ModifyLiquidityParams"
   },
   {
    "name": "delta0",
    "type": "int256",
    "internalType": "BalanceDelta"
   },
   {
    "name": "delta1",
    "type": "int256",
    "internalType": "BalanceDelta"
   },
   {
    "name": "hookData",
    "type": "bytes",
    "internalType": "bytes"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   },
   {
    "name": "",
    "type": "int256",
    "internalType": "BalanceDelta"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "afterSwap",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "params",
    "type": "tuple",
    "components": [
     {
      "name": "zeroForOne",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "amountSpecified",
      "type": "int256",
      "internalType": "int256"
     },
     {
      "name": "sqrtPriceLimitX96",
      "type": "uint160",
      "internalType": "uint160"
     }
    ],
    "internalType": "struct SwapParams"
   },
   {
    "name": "delta",
    "type": "int256",
    "internalType": "BalanceDelta"
   },
   {
    "name": "hookData",
    "type": "bytes",
    "internalType": "bytes"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   },
   {
    "name": "",
    "type": "int128",
    "internalType": "int128"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "allowance",
  "type": "function",
  "inputs": [
   {
    "name": "owner",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "spender",
    "type": "address",
    "internalType": "address"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "approve",
  "type": "function",
  "inputs": [
   {
    "name": "spender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "value",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bool",
    "internalType": "bool"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "balanceOf",
  "type": "function",
  "inputs": [
   {
    "name": "account",
    "type": "address",
    "internalType": "address"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "beforeAddLiquidity",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "params",
    "type": "tuple",
    "components": [
     {
      "name": "tickLower",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "tickUpper",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "liquidityDelta",
      "type": "int256",
      "internalType": "int256"
     },
     {
      "name": "salt",
      "type": "bytes32",
      "internalType": "bytes32"
     }
    ],
    "internalType": "struct ModifyLiquidityParams"
   },
   {
    "name": "hookData",
    "type": "bytes",
    "internalType": "bytes"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "beforeDonate",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "amount0",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "amount1",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "hookData",
    "type": "bytes",
    "internalType": "bytes"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "beforeInitialize",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "sqrtPriceX96",
    "type": "uint160",
    "internalType": "uint160"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "beforeRemoveLiquidity",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "params",
    "type": "tuple",
    "components": [
     {
      "name": "tickLower",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "tickUpper",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "liquidityDelta",
      "type": "int256",
      "internalType": "int256"
     },
     {
      "name": "salt",
      "type": "bytes32",
      "internalType": "bytes32"
     }
    ],
    "internalType": "struct ModifyLiquidityParams"
   },
   {
    "name": "hookData",
    "type": "bytes",
    "internalType": "bytes"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "beforeSwap",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "params",
    "type": "tuple",
    "components": [
     {
      "name": "zeroForOne",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "amountSpecified",
      "type": "int256",
      "internalType": "int256"
     },
     {
      "name": "sqrtPriceLimitX96",
      "type": "uint160",
      "internalType": "uint160"
     }
    ],
    "internalType": "struct SwapParams"
   },
   {
    "name": "hookData",
    "type": "bytes",
    "internalType": "bytes"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   },
   {
    "name": "",
    "type": "int256",
    "internalType": "BeforeSwapDelta"
   },
   {
    "name": "",
    "type": "uint24",
    "internalType": "uint24"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "buybackWei",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint128",
    "internalType": "uint128"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "claimTreasury",
  "type": "function",
  "inputs": [],
  "outputs": [],
  "stateMutability": "nonpayable"
 },
 {
  "name": "decimals",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint8",
    "internalType": "uint8"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "drawdownTicks",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "emaTick",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "firedMask",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint8",
    "internalType": "uint8"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "floorWeiPerToken",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "getHookPermissions",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "tuple",
    "components": [
     {
      "name": "beforeInitialize",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "afterInitialize",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "beforeAddLiquidity",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "afterAddLiquidity",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "beforeRemoveLiquidity",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "afterRemoveLiquidity",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "beforeSwap",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "afterSwap",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "beforeDonate",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "afterDonate",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "beforeSwapReturnDelta",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "afterSwapReturnDelta",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "afterAddLiquidityReturnDelta",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "afterRemoveLiquidityReturnDelta",
      "type": "bool",
      "internalType": "bool"
     }
    ],
    "internalType": "struct Hooks.Permissions"
   }
  ],
  "stateMutability": "pure"
 },
 {
  "name": "lastBuybackTime",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "lastDecayTime",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "lastHighTime",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "lastObsTime",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "marketWeiPerToken",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "name",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "string",
    "internalType": "string"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "poolBound",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "bool",
    "internalType": "bool"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "poolId",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "bytes32",
    "internalType": "PoolId"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "poolManager",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "address",
    "internalType": "contract IPoolManager"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "quoteRedeem",
  "type": "function",
  "inputs": [
   {
    "name": "amount",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "outputs": [
   {
    "name": "payout",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "kept",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "redeem",
  "type": "function",
  "inputs": [
   {
    "name": "amount",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "outputs": [],
  "stateMutability": "nonpayable"
 },
 {
  "name": "refTick",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "reserveWei",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint128",
    "internalType": "uint128"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "symbol",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "string",
    "internalType": "string"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "totalBurned",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "totalBuybackWei",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint128",
    "internalType": "uint128"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "totalFeesWei",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint128",
    "internalType": "uint128"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "totalRedeemedWei",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint128",
    "internalType": "uint128"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "totalSupply",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "totalSwaps",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "totalTreasuryWei",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint128",
    "internalType": "uint128"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "transfer",
  "type": "function",
  "inputs": [
   {
    "name": "to",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "value",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bool",
    "internalType": "bool"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "transferFrom",
  "type": "function",
  "inputs": [
   {
    "name": "from",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "to",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "value",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bool",
    "internalType": "bool"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "treasuryWei",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint128",
    "internalType": "uint128"
   }
  ],
  "stateMutability": "view"
 },
 {
  "type": "receive",
  "stateMutability": "payable"
 }
]

Creation code isn’t shown — this contract was deployed by a factory (internal CREATE), so it has no standalone creation transaction.

Deployed Bytecode

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10,000+ event logs emitted by this contract

Txn Hash	Age	Event	Topics / Data
0x35dc17…f81dc0	13 days agoTue, 04 Aug 2026 16:06:42 UTC	Transfer	[0] 0x000000000000…43e40951 [1] 0x000000000000…d1c45d02 data: 0x000000000000000000…381af7de
0xa75723…881166	13 days agoTue, 04 Aug 2026 15:56:46 UTC	Transfer	[0] 0x000000000000…43e40951 [1] 0x000000000000…d1c45d02 data: 0x000000000000000000…b4e50678
0xa75723…881166	13 days agoTue, 04 Aug 2026 15:56:46 UTC	0xbb30fb…8508	[0] 0x000000000000…43e40951 data: 0x000000000000000000…00000001
0xa75723…881166	13 days agoTue, 04 Aug 2026 15:56:46 UTC	Transfer	[0] 0x000000000000…78e12c56 [1] 0x000000000000…d1c45d02 data: 0x000000000000000000…b40001a9
0xa75723…881166	13 days agoTue, 04 Aug 2026 15:56:46 UTC	Transfer	[0] 0x000000000000…78e12c56 [1] 0x000000000000…43e40951 data: 0x000000000000000000…ecfffe57
0xa75723…881166	13 days agoTue, 04 Aug 2026 15:56:46 UTC	Approval	[0] 0x000000000000…78e12c56 [1] 0x000000000000…3ac78ba3 data: 0xffffffffffffffffff…ffffffff
0x7e5617…8351b9	13 days agoTue, 04 Aug 2026 15:56:43 UTC	Transfer	[0] 0x000000000000…00000000 [1] 0x000000000000…78e12c56 data: 0x000000000000000000…a1000000

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A contract address hosts a smart contract — a set of code functions that can execute independently of any centralized server. Learn more in our Knowledge Base.

✓ VerifiedExact MatchTest⤢ Open full

Contract Name

Test

Compiler

solidity · v0.8.26+commit.8a97fa7a

Optimization

Yes · 200 runs

EVM Version

cancun

Source

Mirrored from Robinhood Chain explorer

Contract Source Code

Outline

C Test

ƒ floorWeiPerToken

ƒ marketWeiPerToken

ƒ drawdownTicks

ƒ quoteRedeem

ƒ redeem

ƒ getHookPermissions

ƒ _beforeInitialize

ƒ _beforeSwap

ƒ _afterSwap

ƒ _credit

ƒ claimTreasury

ƒ _observe

ƒ _decayHigh

ƒ _maybeBuyback

ƒ _armTier

ƒ _atFloor

ƒ _marketWeiPerToken

ƒ _buyback

ƒ _lock

ƒ _unlock

ƒ _locked

Test.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.26;

import {BaseHook} from "@openzeppelin/uniswap-hooks/src/base/BaseHook.sol";
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {Hooks} from "@uniswap/v4-core/src/libraries/Hooks.sol";
import {IPoolManager, SwapParams} from "@uniswap/v4-core/src/interfaces/IPoolManager.sol";
import {PoolKey} from "@uniswap/v4-core/src/types/PoolKey.sol";
import {PoolId, PoolIdLibrary} from "@uniswap/v4-core/src/types/PoolId.sol";
import {BalanceDelta} from "@uniswap/v4-core/src/types/BalanceDelta.sol";
import {BeforeSwapDelta, BeforeSwapDeltaLibrary, toBeforeSwapDelta} from "@uniswap/v4-core/src/types/BeforeSwapDelta.sol";
import {Currency, CurrencyLibrary} from "@uniswap/v4-core/src/types/Currency.sol";
import {StateLibrary} from "@uniswap/v4-core/src/libraries/StateLibrary.sol";
import {TickMath} from "@uniswap/v4-core/src/libraries/TickMath.sol";
import {FullMath} from "@uniswap/v4-core/src/libraries/FullMath.sol";

/// @title Test
/// @notice ERC-20 + Uniswap v4 hook. Every swap pays 3% in native ETH, split three ways:
///
///         treasury 1.5% → creator revenue, accrued and pulled, never touches the floor
///         reserve  0.75% → any holder may burn tokens and withdraw `reserve / totalSupply` at
///                    any time. A 2% exit fee stays behind, so every redemption lifts the floor.
///         fund     0.75% → idle in a calm market. Deploys only on drawdowns from a decaying
///                    trailing high, on a fixed ladder, with a cooldown. Everything bought burns.
///
///         Both floor operations are accretive by construction:
///           redeem   f'/f = (S - 0.98·Δ)/(S - Δ) > 1
///           buyback  R unchanged, S falls  ⇒  f = R/S rises
///         so `floorWeiPerToken()` is monotonically non-decreasing in ETH terms.
///
/// @dev No owner, no admin key, no upgrade path, no mint. TREASURY is immutable and can only
///      ever receive its own accrued share — it cannot reach the reserve or the fund.
contract Test is ERC20, BaseHook {
    using PoolIdLibrary for PoolKey;
    using StateLibrary for IPoolManager;

    // ░░░░░ constants ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    uint256 public constant TOTAL_SUPPLY = 1_000_000 * 10 ** 18;

    /// @notice Total swap fee, both directions, charged in native ETH.
    /// @dev With LP_FEE on top the trader pays 3.3% per side, 6.6% round trip. That is steep, and
    ///      volume is the only thing that feeds the floor — see TREASURY_FEE_BPS.
    uint16 public constant FEE_BPS = 300;
    /// @notice The creator's cut of FEE_BPS. The remainder splits 50/50 into reserve and fund.
    /// @dev Every bp here is a bp that does not reach the floor: the floor accrues at
    ///      (FEE_BPS - TREASURY_FEE_BPS)/2 = 0.75% of volume either way, so raising this does not
    ///      slow the floor directly — it only raises the toll, which suppresses the volume the
    ///      floor is built from.
    uint16 public constant TREASURY_FEE_BPS = 150;
    /// @notice Withheld on redemption. Stays in the reserve and lifts the floor for everyone else.
    uint16 public constant REDEEM_FEE_BPS = 200;

    /// @notice The pool's own LP fee, pinned so only one pool shape can ever bind to this hook.
    /// @dev 3000 matches the house launch pattern, and it stacks: the trader pays FEE_BPS on top,
    ///      ~1.8% per side. It also means the launch LP position earns real income, so locking it
    ///      by burning the NFT forfeits that — a factory-held position does not. Set to 0 to make
    ///      the hook fee the trader's entire cost.
    uint24 public constant LP_FEE = 3000;

    // ── drawdown ladder ─────────────────────────────────────────
    // Measured in ticks against the trailing high. currency0 is native ETH, so the token's
    // price is 1.0001^(-tick): the token makes a new high when the tick makes a new LOW, and a
    // drawdown is the tick rising above `refTick`.
    //   -8%  → ln(0.92)/ln(1.0001) ≈  +834 ticks
    //   -15% → ln(0.85)/ln(1.0001) ≈ +1625 ticks
    //   -25% → ln(0.75)/ln(1.0001) ≈ +2877 ticks
    int24 public constant TIER1_TICKS = 834;
    int24 public constant TIER2_TICKS = 1625;
    int24 public constant TIER3_TICKS = 2877;
    uint16 public constant TIER1_BPS = 1000; // 10% of fund
    uint16 public constant TIER2_BPS = 2500; // 25%
    uint16 public constant TIER3_BPS = 5000; // 50%
    uint16 public constant TIER_FLOOR_BPS = 10_000; // at the floor: everything

    uint64 public constant BUYBACK_COOLDOWN = 30 minutes;

    // ── oracle ──────────────────────────────────────────────────
    // Truncated, time-weighted EMA of the pool tick. Two independent costs to move it: a single
    // observation can shift it by at most MAX_TICK_MOVE, and the weight of any observation is
    // dt/(dt+TAU), so holding a manipulated price costs wall-clock time, not just capital.
    uint64 public constant EMA_TAU = 30 minutes;
    int24 public constant MAX_TICK_MOVE = 400; // ~4% per observation

    // ── trailing-high decay ─────────────────────────────────────
    // Without decay a single wick pins `refTick` forever and every later price reads as a deep
    // drawdown, draining the fund one cooldown at a time. The high therefore bleeds back toward
    // the market after a week of no new high.
    uint64 public constant HIGH_STALE_AFTER = 7 days;
    int24 public constant HIGH_DECAY_TICKS_PER_DAY = 100; // ~1%/day

    uint160 public constant HOOK_FLAGS = uint160(
        Hooks.BEFORE_SWAP_FLAG | Hooks.AFTER_SWAP_FLAG | Hooks.BEFORE_SWAP_RETURNS_DELTA_FLAG
            | Hooks.AFTER_SWAP_RETURNS_DELTA_FLAG | Hooks.BEFORE_INITIALIZE_FLAG
    );

    uint256 private constant Q96 = 1 << 96;
    /// @dev Transient slot guarding the hook's own buyback swap against re-entering its own fee
    ///      and trigger logic. Requires the cancun evm_version already set in foundry.toml.
    uint256 private constant LOCK_SLOT = 0;

    // ░░░░░ vaults ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    /// @notice Backs the redemption floor. Only `redeem` may reduce it.
    uint128 public reserveWei;
    /// @notice Counter-cyclical buyback fund. Only `_buyback` may reduce it.
    uint128 public buybackWei;
    /// @notice Accrued creator revenue, awaiting `claimTreasury`.
    /// @dev Accrued and pulled rather than pushed inside the swap. A push would put an external
    ///      call on the hot path of every trade: a TREASURY that reverts on receive would brick
    ///      every swap and kill the token outright.
    uint128 public treasuryWei;

    /// @notice Immutable recipient of TREASURY_FEE_BPS. Set once at deploy, never changeable.
    address public immutable TREASURY;

    // ░░░░░ oracle state ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    PoolId public poolId;
    bool public poolBound;

    int24 public emaTick;
    int24 public refTick; // trailing high of the token = lowest EMA tick seen
    uint64 public lastObsTime;
    uint64 public lastHighTime;
    uint64 public lastDecayTime;
    uint64 public lastBuybackTime;
    /// @dev bit0/1/2 = tier fired during this descent, bit3 = fund emptied at the floor.
    ///      Cleared when the price recovers to within TIER1 of the high.
    uint8 public firedMask;

    // ░░░░░ stats ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    uint128 public totalFeesWei;
    uint128 public totalRedeemedWei;
    uint128 public totalBuybackWei;
    uint128 public totalTreasuryWei;
    uint256 public totalBurned;
    uint64 public totalSwaps;

    // ░░░░░ events ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    event FeeTaken(address indexed trader, uint128 toReserve, uint128 toFund, uint128 toTreasury, bool isBuy);
    event TreasuryClaimed(address indexed to, uint256 amount);
    event Redeemed(address indexed holder, uint256 burned, uint256 paidWei, uint256 keptWei);
    event NewHigh(int24 tick, uint64 at);
    event HighDecayed(int24 from, int24 to);
    event Buyback(uint16 tierBps, uint256 spentWei, uint256 burnedTokens, int24 drawdownTicks);

    // ░░░░░ errors ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    error BadPoolShape();
    error AlreadyBound();
    error NothingToRedeem();
    error EmptyReserve();
    error PayoutFailed();

    // ░░░░░ constructor ░░░━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

    constructor(IPoolManager _poolManager, address _owner, address _treasury)
        ERC20("Test", "TEST")
        BaseHook(_poolManager)
    {
        if (_treasury == address(0)) revert BadPoolShape();
        TREASURY = _treasury;
        _mint(_owner, TOTAL_SUPPLY);
    }

    receive() external payable {}

    // ░░░░░ views ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    /// @notice Wei backing one whole token. Never decreases.
    function floorWeiPerToken() public view returns (uint256) {
        uint256 supply = totalSupply();
        if (supply == 0) return 0;
        return FullMath.mulDiv(reserveWei, 1e18, supply);
    }

    /// @notice Pool price in wei per whole token, from live slot0.
    function marketWeiPerToken() public view returns (uint256) {
        if (!poolBound) return 0;
        (uint160 sqrtPriceX96,,,) = poolManager.getSlot0(poolId);
        return _marketWeiPerToken(sqrtPriceX96);
    }

    /// @notice Current drawdown against the trailing high, in ticks. 0 when at or above the high.
    function drawdownTicks() public view returns (int24) {
        int24 dd = emaTick - refTick;
        return dd > 0 ? dd : int24(0);
    }

    /// @notice What `redeem(amount)` pays out right now.
    function quoteRedeem(uint256 amount) public view returns (uint256 payout, uint256 kept) {
        uint256 supply = totalSupply();
        if (supply == 0 || amount == 0) return (0, 0);
        uint256 gross = FullMath.mulDiv(amount, reserveWei, supply);
        kept = (gross * REDEEM_FEE_BPS + 9_999) / 10_000; // round the exit fee up
        payout = gross - kept;
    }

    // ░░░░░ redemption ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    /// @notice Burn `amount` and withdraw its share of the reserve, less the 2% exit fee.
    /// @dev Payout rounds down and the exit fee rounds up, so rounding can only favour the
    ///      reserve — the floor invariant survives integer division.
    function redeem(uint256 amount) external {
        if (amount == 0) revert NothingToRedeem();
        if (reserveWei == 0) revert EmptyReserve();

        (uint256 payout, uint256 kept) = quoteRedeem(amount);

        // effects before interaction: burn, then debit the reserve, then pay.
        _burn(msg.sender, amount);
        reserveWei -= uint128(payout);
        totalRedeemedWei += uint128(payout);
        totalBurned += amount;

        emit Redeemed(msg.sender, amount, payout, kept);

        if (payout != 0) {
            (bool ok,) = msg.sender.call{value: payout}("");
            if (!ok) revert PayoutFailed();
        }
    }

    // ░░░░░ hook wiring ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    function getHookPermissions() public pure override returns (Hooks.Permissions memory) {
        return Hooks.Permissions({
            beforeInitialize: true,
            afterInitialize: false,
            beforeAddLiquidity: false,
            afterAddLiquidity: false,
            beforeRemoveLiquidity: false,
            afterRemoveLiquidity: false,
            beforeSwap: true,
            afterSwap: true,
            beforeDonate: false,
            afterDonate: false,
            beforeSwapReturnDelta: true,
            afterSwapReturnDelta: true,
            afterAddLiquidityReturnDelta: false,
            afterRemoveLiquidityReturnDelta: false
        });
    }

    /// @dev Binds to exactly one pool: native ETH / this token at LP_FEE. Anything else is
    ///      rejected, so the oracle and the ladder can never be pointed at a second market.
    function _beforeInitialize(address, PoolKey calldata key, uint160 sqrtPriceX96)
        internal
        override
        returns (bytes4)
    {
        if (poolBound) revert AlreadyBound();
        if (
            !key.currency0.isAddressZero() || Currency.unwrap(key.currency1) != address(this)
                || key.fee != LP_FEE || address(key.hooks) != address(this)
        ) revert BadPoolShape();

        poolId = key.toId();
        poolBound = true;

        int24 tick = TickMath.getTickAtSqrtPrice(sqrtPriceX96);
        emaTick = tick;
        refTick = tick;
        lastObsTime = uint64(block.timestamp);
        lastHighTime = uint64(block.timestamp);
        lastDecayTime = uint64(block.timestamp);

        return BaseHook.beforeInitialize.selector;
    }

    // ░░░░░ BUY: fee on ETH in ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    function _beforeSwap(address, PoolKey calldata key, SwapParams calldata params, bytes calldata)
        internal
        override
        returns (bytes4, BeforeSwapDelta, uint24)
    {
        // the hook's own buyback pays no fee and triggers nothing
        if (_locked()) return (BaseHook.beforeSwap.selector, BeforeSwapDeltaLibrary.ZERO_DELTA, 0);

        // exact-input buy only; exact-output buys are charged in _afterSwap, where the ETH
        // actually paid is known.
        if (!params.zeroForOne || params.amountSpecified >= 0) {
            return (BaseHook.beforeSwap.selector, BeforeSwapDeltaLibrary.ZERO_DELTA, 0);
        }

        uint256 inputEth = uint256(-params.amountSpecified);
        uint128 fee = uint128((inputEth * FEE_BPS) / 10_000);
        if (fee == 0) return (BaseHook.beforeSwap.selector, BeforeSwapDeltaLibrary.ZERO_DELTA, 0);

        poolManager.take(key.currency0, address(this), fee);
        _credit(fee, true);

        return (BaseHook.beforeSwap.selector, toBeforeSwapDelta(int128(int256(uint256(fee))), 0), 0);
    }

    // ░░░░░ SELL: fee on ETH out · then observe · then maybe buy ░░

    function _afterSwap(address, PoolKey calldata key, SwapParams calldata params, BalanceDelta delta, bytes calldata)
        internal
        override
        returns (bytes4, int128)
    {
        if (_locked()) return (BaseHook.afterSwap.selector, 0);

        unchecked {
            totalSwaps++;
        }

        int128 amount0 = delta.amount0();
        int128 hookDelta = 0;

        if (amount0 > 0) {
            // sell: pool owes ETH to the swapper, skim the fee off the output
            uint128 fee = uint128((uint256(uint128(amount0)) * FEE_BPS) / 10_000);
            if (fee != 0) {
                poolManager.take(key.currency0, address(this), fee);
                _credit(fee, false);
                hookDelta = int128(int256(uint256(fee)));
            }
        } else if (amount0 < 0 && params.zeroForOne && params.amountSpecified > 0) {
            // exact-output buy: ETH in was unknown in _beforeSwap, charge it here on the
            // unspecified currency so the exact-output path cannot be used to dodge the fee.
            uint128 fee = uint128((uint256(uint128(-amount0)) * FEE_BPS) / 10_000);
            if (fee != 0) {
                poolManager.take(key.currency0, address(this), fee);
                _credit(fee, true);
                hookDelta = int128(int256(uint256(fee)));
            }
        }

        // An empty pool has no meaningful tick: the price sits wherever the last swap ran out of
        // liquidity, which is free to place anywhere. Feed the oracle nothing in that state.
        if (poolManager.getLiquidity(poolId) != 0) {
            (, int24 tick,,) = poolManager.getSlot0(poolId);
            _observe(tick);
            _maybeBuyback(key);
        }

        return (BaseHook.afterSwap.selector, hookDelta);
    }

    // ░░░░░ fee split ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    function _credit(uint128 fee, bool isBuy) private {
        uint128 toTreasury = uint128((uint256(fee) * TREASURY_FEE_BPS) / FEE_BPS);
        uint128 rest = fee - toTreasury;
        uint128 toReserve = rest / 2;
        uint128 toFund = rest - toReserve; // odd wei goes to the fund

        reserveWei += toReserve;
        buybackWei += toFund;
        treasuryWei += toTreasury;

        totalFeesWei += fee;
        totalTreasuryWei += toTreasury;

        emit FeeTaken(msg.sender, toReserve, toFund, toTreasury, isBuy);
    }

    /// @notice Send the accrued creator revenue to TREASURY. Permissionless: the destination is
    ///         immutable, so it does not matter who pays the gas to push it.
    function claimTreasury() external {
        uint256 amount = treasuryWei;
        if (amount == 0) return;
        treasuryWei = 0;
        (bool ok,) = TREASURY.call{value: amount}("");
        if (!ok) revert PayoutFailed();
        emit TreasuryClaimed(TREASURY, amount);
    }

    // ░░░░░ oracle ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    /// @dev Time-weighted EMA with a per-observation truncation. Two swaps in the same second
    ///      move it once; a flash move is capped at MAX_TICK_MOVE and decays out.
    function _observe(int24 tick) private {
        uint64 nowTs = uint64(block.timestamp);
        uint64 dt = nowTs - lastObsTime;
        if (dt == 0) return; // same-timestamp swaps carry no oracle weight

        int256 diff = int256(tick) - int256(emaTick);
        if (diff > int256(MAX_TICK_MOVE)) diff = int256(MAX_TICK_MOVE);
        if (diff < -int256(MAX_TICK_MOVE)) diff = -int256(MAX_TICK_MOVE);

        int256 step = (diff * int256(uint256(dt))) / int256(uint256(dt) + uint256(EMA_TAU));
        emaTick = int24(int256(emaTick) + step);
        lastObsTime = nowTs;

        _decayHigh(nowTs);

        if (emaTick < refTick) {
            // lower tick = higher token price = new high
            refTick = emaTick;
            lastHighTime = nowTs;
            lastDecayTime = nowTs;
            firedMask = 0;
            emit NewHigh(emaTick, nowTs);
        } else if (emaTick - refTick < TIER1_TICKS) {
            // recovered to within the first rung: the whole ladder re-arms
            firedMask = 0;
        }
    }

    function _decayHigh(uint64 nowTs) private {
        if (nowTs <= lastHighTime + HIGH_STALE_AFTER) return;
        uint64 elapsed = nowTs - lastDecayTime;
        if (elapsed < 1 days) return;

        uint64 steps = elapsed / 1 days;
        int24 from = refTick;
        int256 moved = int256(refTick) + int256(uint256(steps)) * int256(HIGH_DECAY_TICKS_PER_DAY);
        if (moved > int256(emaTick)) moved = int256(emaTick);
        refTick = int24(moved);
        lastDecayTime += steps * 1 days;

        if (from != refTick) emit HighDecayed(from, refTick);
    }

    // ░░░░░ counter-cyclical buyback ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

    function _maybeBuyback(PoolKey calldata key) private {
        if (buybackWei == 0) return;
        if (block.timestamp < uint256(lastBuybackTime) + BUYBACK_COOLDOWN) return;
        // a tick with no liquidity behind it is not a price; never act on one
        if (poolManager.getLiquidity(poolId) == 0) return;

        uint16 bps = _armTier();
        if (bps == 0) return;

        uint256 spend = (uint256(buybackWei) * bps) / 10_000;
        if (spend == 0) return;

        lastBuybackTime = uint64(block.timestamp);
        _buyback(key, spend, bps);
    }

    /// @dev Returns the share of the fund to deploy and marks the rung as fired. Each rung fires
    ///      once per descent; a higher rung also consumes the ones beneath it, so a gap-down
    ///      straight to -25% does not later re-fire -8% and -15% on the way back up.
    function _armTier() private returns (uint16) {
        if (_atFloor()) {
            if (firedMask & 8 != 0) return 0;
            firedMask = 0x0F;
            return TIER_FLOOR_BPS;
        }

        int24 dd = emaTick - refTick;
        if (dd >= TIER3_TICKS && firedMask & 4 == 0) {
            firedMask |= 0x07;
            return TIER3_BPS;
        }
        if (dd >= TIER2_TICKS && firedMask & 2 == 0) {
            firedMask |= 0x03;
            return TIER2_BPS;
        }
        if (dd >= TIER1_TICKS && firedMask & 1 == 0) {
            firedMask |= 0x01;
            return TIER1_BPS;
        }
        return 0;
    }

    /// @dev EMA, never spot. Spot looks like the right input — "at the floor" reads as a live
    ///      arbitrage condition — but a swap that exhausts in-range liquidity leaves the tick in
    ///      a region with no liquidity behind it, where it travels to MAX_TICK for free. Spot
    ///      then reports a token price of ~0 and this branch hands over the entire fund on
    ///      demand, at any time, with no drawdown and no capital. Observed on testnet: one sell
    ///      pushed the tick to 887271 with liquidity 0 and drained the fund in a single tx.
    ///      The EMA truncation absorbed that same jump down to 1 tick, so route through it.
    function _atFloor() private view returns (bool) {
        uint256 f = floorWeiPerToken();
        if (f == 0) return false;
        return _marketWeiPerToken(TickMath.getSqrtPriceAtTick(emaTick)) <= f;
    }

    function _marketWeiPerToken(uint160 sqrtPriceX96) private pure returns (uint256) {
        // currency0 = ETH, currency1 = token, so sqrtPriceX96 = sqrt(tokens per wei) · 2^96
        // wei per whole token = 1e18 · (2^96 / sqrtPriceX96)^2
        uint256 x = FullMath.mulDiv(1e18, Q96, sqrtPriceX96);
        return FullMath.mulDiv(x, Q96, sqrtPriceX96);
    }

    /// @dev Re-enters PoolManager.swap inside afterSwap. The global lock is already held by the
    ///      original unlocker, so the nested swap only has to settle its own deltas before
    ///      returning. The transient flag stops it from paying our own fee or arming the ladder.
    function _buyback(PoolKey calldata key, uint256 spend, uint16 bps) private {
        _lock();

        BalanceDelta d = poolManager.swap(
            key,
            SwapParams({
                zeroForOne: true, // ETH in, token out
                amountSpecified: -int256(spend), // exact input
                sqrtPriceLimitX96: TickMath.MIN_SQRT_PRICE + 1
            }),
            ""
        );

        // we owe currency0, we are owed currency1
        poolManager.sync(CurrencyLibrary.ADDRESS_ZERO); // reset synced currency → settle native
        poolManager.settle{value: spend}();

        uint256 got = uint256(uint128(d.amount1()));
        poolManager.take(key.currency1, address(this), got);

        buybackWei -= uint128(spend);
        totalBuybackWei += uint128(spend);
        totalBurned += got;

        _burn(address(this), got);

        _unlock();

        emit Buyback(bps, spend, got, emaTick - refTick);
    }

    // ░░░░░ transient re-entrancy flag ░░░░░░░░░░░░░░░░░░░░░░░░░░░

    function _lock() private {
        assembly ("memory-safe") {
            tstore(LOCK_SLOT, 1)
        }
    }

    function _unlock() private {
        assembly ("memory-safe") {
            tstore(LOCK_SLOT, 0)
        }
    }

    function _locked() private view returns (bool f) {
        assembly ("memory-safe") {
            f := tload(LOCK_SLOT)
        }
    }
}

Contract ABI

[
 {
  "type": "constructor",
  "inputs": [
   {
    "name": "_poolManager",
    "type": "address",
    "internalType": "contract IPoolManager"
   },
   {
    "name": "_owner",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "_treasury",
    "type": "address",
    "internalType": "address"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "AlreadyBound",
  "type": "error",
  "inputs": []
 },
 {
  "name": "BadPoolShape",
  "type": "error",
  "inputs": []
 },
 {
  "name": "ERC20InsufficientAllowance",
  "type": "error",
  "inputs": [
   {
    "name": "spender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "allowance",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "needed",
    "type": "uint256",
    "internalType": "uint256"
   }
  ]
 },
 {
  "name": "ERC20InsufficientBalance",
  "type": "error",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "balance",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "needed",
    "type": "uint256",
    "internalType": "uint256"
   }
  ]
 },
 {
  "name": "ERC20InvalidApprover",
  "type": "error",
  "inputs": [
   {
    "name": "approver",
    "type": "address",
    "internalType": "address"
   }
  ]
 },
 {
  "name": "ERC20InvalidReceiver",
  "type": "error",
  "inputs": [
   {
    "name": "receiver",
    "type": "address",
    "internalType": "address"
   }
  ]
 },
 {
  "name": "ERC20InvalidSender",
  "type": "error",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   }
  ]
 },
 {
  "name": "ERC20InvalidSpender",
  "type": "error",
  "inputs": [
   {
    "name": "spender",
    "type": "address",
    "internalType": "address"
   }
  ]
 },
 {
  "name": "EmptyReserve",
  "type": "error",
  "inputs": []
 },
 {
  "name": "HookNotImplemented",
  "type": "error",
  "inputs": []
 },
 {
  "name": "NotPoolManager",
  "type": "error",
  "inputs": []
 },
 {
  "name": "NothingToRedeem",
  "type": "error",
  "inputs": []
 },
 {
  "name": "PayoutFailed",
  "type": "error",
  "inputs": []
 },
 {
  "name": "Approval",
  "type": "event",
  "inputs": [
   {
    "name": "owner",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "spender",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "value",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   }
  ],
  "anonymous": false
 },
 {
  "name": "Buyback",
  "type": "event",
  "inputs": [
   {
    "name": "tierBps",
    "type": "uint16",
    "indexed": false,
    "internalType": "uint16"
   },
   {
    "name": "spentWei",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   },
   {
    "name": "burnedTokens",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   },
   {
    "name": "drawdownTicks",
    "type": "int24",
    "indexed": false,
    "internalType": "int24"
   }
  ],
  "anonymous": false
 },
 {
  "name": "FeeTaken",
  "type": "event",
  "inputs": [
   {
    "name": "trader",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "toReserve",
    "type": "uint128",
    "indexed": false,
    "internalType": "uint128"
   },
   {
    "name": "toFund",
    "type": "uint128",
    "indexed": false,
    "internalType": "uint128"
   },
   {
    "name": "toTreasury",
    "type": "uint128",
    "indexed": false,
    "internalType": "uint128"
   },
   {
    "name": "isBuy",
    "type": "bool",
    "indexed": false,
    "internalType": "bool"
   }
  ],
  "anonymous": false
 },
 {
  "name": "HighDecayed",
  "type": "event",
  "inputs": [
   {
    "name": "from",
    "type": "int24",
    "indexed": false,
    "internalType": "int24"
   },
   {
    "name": "to",
    "type": "int24",
    "indexed": false,
    "internalType": "int24"
   }
  ],
  "anonymous": false
 },
 {
  "name": "NewHigh",
  "type": "event",
  "inputs": [
   {
    "name": "tick",
    "type": "int24",
    "indexed": false,
    "internalType": "int24"
   },
   {
    "name": "at",
    "type": "uint64",
    "indexed": false,
    "internalType": "uint64"
   }
  ],
  "anonymous": false
 },
 {
  "name": "Redeemed",
  "type": "event",
  "inputs": [
   {
    "name": "holder",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "burned",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   },
   {
    "name": "paidWei",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   },
   {
    "name": "keptWei",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   }
  ],
  "anonymous": false
 },
 {
  "name": "Transfer",
  "type": "event",
  "inputs": [
   {
    "name": "from",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "to",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "value",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   }
  ],
  "anonymous": false
 },
 {
  "name": "TreasuryClaimed",
  "type": "event",
  "inputs": [
   {
    "name": "to",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "amount",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   }
  ],
  "anonymous": false
 },
 {
  "name": "BUYBACK_COOLDOWN",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "EMA_TAU",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "FEE_BPS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint16",
    "internalType": "uint16"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "HIGH_DECAY_TICKS_PER_DAY",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "HIGH_STALE_AFTER",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "HOOK_FLAGS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint160",
    "internalType": "uint160"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "LP_FEE",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint24",
    "internalType": "uint24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "MAX_TICK_MOVE",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "REDEEM_FEE_BPS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint16",
    "internalType": "uint16"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TIER1_BPS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint16",
    "internalType": "uint16"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TIER1_TICKS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TIER2_BPS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint16",
    "internalType": "uint16"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TIER2_TICKS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TIER3_BPS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint16",
    "internalType": "uint16"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TIER3_TICKS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TIER_FLOOR_BPS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint16",
    "internalType": "uint16"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TOTAL_SUPPLY",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TREASURY",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "address",
    "internalType": "address"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "TREASURY_FEE_BPS",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint16",
    "internalType": "uint16"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "afterAddLiquidity",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "params",
    "type": "tuple",
    "components": [
     {
      "name": "tickLower",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "tickUpper",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "liquidityDelta",
      "type": "int256",
      "internalType": "int256"
     },
     {
      "name": "salt",
      "type": "bytes32",
      "internalType": "bytes32"
     }
    ],
    "internalType": "struct ModifyLiquidityParams"
   },
   {
    "name": "delta0",
    "type": "int256",
    "internalType": "BalanceDelta"
   },
   {
    "name": "delta1",
    "type": "int256",
    "internalType": "BalanceDelta"
   },
   {
    "name": "hookData",
    "type": "bytes",
    "internalType": "bytes"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   },
   {
    "name": "",
    "type": "int256",
    "internalType": "BalanceDelta"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "afterDonate",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "amount0",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "amount1",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "hookData",
    "type": "bytes",
    "internalType": "bytes"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "afterInitialize",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "sqrtPriceX96",
    "type": "uint160",
    "internalType": "uint160"
   },
   {
    "name": "tick",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "afterRemoveLiquidity",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "params",
    "type": "tuple",
    "components": [
     {
      "name": "tickLower",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "tickUpper",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "liquidityDelta",
      "type": "int256",
      "internalType": "int256"
     },
     {
      "name": "salt",
      "type": "bytes32",
      "internalType": "bytes32"
     }
    ],
    "internalType": "struct ModifyLiquidityParams"
   },
   {
    "name": "delta0",
    "type": "int256",
    "internalType": "BalanceDelta"
   },
   {
    "name": "delta1",
    "type": "int256",
    "internalType": "BalanceDelta"
   },
   {
    "name": "hookData",
    "type": "bytes",
    "internalType": "bytes"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   },
   {
    "name": "",
    "type": "int256",
    "internalType": "BalanceDelta"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "afterSwap",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "params",
    "type": "tuple",
    "components": [
     {
      "name": "zeroForOne",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "amountSpecified",
      "type": "int256",
      "internalType": "int256"
     },
     {
      "name": "sqrtPriceLimitX96",
      "type": "uint160",
      "internalType": "uint160"
     }
    ],
    "internalType": "struct SwapParams"
   },
   {
    "name": "delta",
    "type": "int256",
    "internalType": "BalanceDelta"
   },
   {
    "name": "hookData",
    "type": "bytes",
    "internalType": "bytes"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   },
   {
    "name": "",
    "type": "int128",
    "internalType": "int128"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "allowance",
  "type": "function",
  "inputs": [
   {
    "name": "owner",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "spender",
    "type": "address",
    "internalType": "address"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "approve",
  "type": "function",
  "inputs": [
   {
    "name": "spender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "value",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bool",
    "internalType": "bool"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "balanceOf",
  "type": "function",
  "inputs": [
   {
    "name": "account",
    "type": "address",
    "internalType": "address"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "beforeAddLiquidity",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "params",
    "type": "tuple",
    "components": [
     {
      "name": "tickLower",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "tickUpper",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "liquidityDelta",
      "type": "int256",
      "internalType": "int256"
     },
     {
      "name": "salt",
      "type": "bytes32",
      "internalType": "bytes32"
     }
    ],
    "internalType": "struct ModifyLiquidityParams"
   },
   {
    "name": "hookData",
    "type": "bytes",
    "internalType": "bytes"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "beforeDonate",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "amount0",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "amount1",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "hookData",
    "type": "bytes",
    "internalType": "bytes"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "beforeInitialize",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "sqrtPriceX96",
    "type": "uint160",
    "internalType": "uint160"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "beforeRemoveLiquidity",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "params",
    "type": "tuple",
    "components": [
     {
      "name": "tickLower",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "tickUpper",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "liquidityDelta",
      "type": "int256",
      "internalType": "int256"
     },
     {
      "name": "salt",
      "type": "bytes32",
      "internalType": "bytes32"
     }
    ],
    "internalType": "struct ModifyLiquidityParams"
   },
   {
    "name": "hookData",
    "type": "bytes",
    "internalType": "bytes"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "beforeSwap",
  "type": "function",
  "inputs": [
   {
    "name": "sender",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "key",
    "type": "tuple",
    "components": [
     {
      "name": "currency0",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "currency1",
      "type": "address",
      "internalType": "Currency"
     },
     {
      "name": "fee",
      "type": "uint24",
      "internalType": "uint24"
     },
     {
      "name": "tickSpacing",
      "type": "int24",
      "internalType": "int24"
     },
     {
      "name": "hooks",
      "type": "address",
      "internalType": "contract IHooks"
     }
    ],
    "internalType": "struct PoolKey"
   },
   {
    "name": "params",
    "type": "tuple",
    "components": [
     {
      "name": "zeroForOne",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "amountSpecified",
      "type": "int256",
      "internalType": "int256"
     },
     {
      "name": "sqrtPriceLimitX96",
      "type": "uint160",
      "internalType": "uint160"
     }
    ],
    "internalType": "struct SwapParams"
   },
   {
    "name": "hookData",
    "type": "bytes",
    "internalType": "bytes"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   },
   {
    "name": "",
    "type": "int256",
    "internalType": "BeforeSwapDelta"
   },
   {
    "name": "",
    "type": "uint24",
    "internalType": "uint24"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "buybackWei",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint128",
    "internalType": "uint128"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "claimTreasury",
  "type": "function",
  "inputs": [],
  "outputs": [],
  "stateMutability": "nonpayable"
 },
 {
  "name": "decimals",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint8",
    "internalType": "uint8"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "drawdownTicks",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "emaTick",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "firedMask",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint8",
    "internalType": "uint8"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "floorWeiPerToken",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "getHookPermissions",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "tuple",
    "components": [
     {
      "name": "beforeInitialize",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "afterInitialize",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "beforeAddLiquidity",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "afterAddLiquidity",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "beforeRemoveLiquidity",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "afterRemoveLiquidity",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "beforeSwap",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "afterSwap",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "beforeDonate",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "afterDonate",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "beforeSwapReturnDelta",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "afterSwapReturnDelta",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "afterAddLiquidityReturnDelta",
      "type": "bool",
      "internalType": "bool"
     },
     {
      "name": "afterRemoveLiquidityReturnDelta",
      "type": "bool",
      "internalType": "bool"
     }
    ],
    "internalType": "struct Hooks.Permissions"
   }
  ],
  "stateMutability": "pure"
 },
 {
  "name": "lastBuybackTime",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "lastDecayTime",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "lastHighTime",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "lastObsTime",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "marketWeiPerToken",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "name",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "string",
    "internalType": "string"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "poolBound",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "bool",
    "internalType": "bool"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "poolId",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "bytes32",
    "internalType": "PoolId"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "poolManager",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "address",
    "internalType": "contract IPoolManager"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "quoteRedeem",
  "type": "function",
  "inputs": [
   {
    "name": "amount",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "outputs": [
   {
    "name": "payout",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "kept",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "redeem",
  "type": "function",
  "inputs": [
   {
    "name": "amount",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "outputs": [],
  "stateMutability": "nonpayable"
 },
 {
  "name": "refTick",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "int24",
    "internalType": "int24"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "reserveWei",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint128",
    "internalType": "uint128"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "symbol",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "string",
    "internalType": "string"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "totalBurned",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "totalBuybackWei",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint128",
    "internalType": "uint128"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "totalFeesWei",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint128",
    "internalType": "uint128"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "totalRedeemedWei",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint128",
    "internalType": "uint128"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "totalSupply",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "totalSwaps",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "totalTreasuryWei",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint128",
    "internalType": "uint128"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "transfer",
  "type": "function",
  "inputs": [
   {
    "name": "to",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "value",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bool",
    "internalType": "bool"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "transferFrom",
  "type": "function",
  "inputs": [
   {
    "name": "from",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "to",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "value",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bool",
    "internalType": "bool"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "treasuryWei",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint128",
    "internalType": "uint128"
   }
  ],
  "stateMutability": "view"
 },
 {
  "type": "receive",
  "stateMutability": "payable"
 }
]

Creation code isn’t shown — this contract was deployed by a factory (internal CREATE), so it has no standalone creation transaction.

Deployed Bytecode

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Latest 0 from a total of 0 NFT transfers

	Transaction Hash	Method	Block	Age	From		To	Type	Item
no NFT transfers for this address yet

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Latest 0 from a total of 0 token transfers

	Transaction Hash	Method	Block	Age	From		To	Amount	Token
no token transfers for this address yet

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Type	Age	Block	Details
no cross-chain L1↔L2 transactions for this address

10,000+ event logs emitted by this contract

Txn Hash	Age	Event	Topics / Data
0x35dc17…f81dc0	13 days agoTue, 04 Aug 2026 16:06:42 UTC	Transfer	[0] 0x000000000000…43e40951 [1] 0x000000000000…d1c45d02 data: 0x000000000000000000…381af7de
0xa75723…881166	13 days agoTue, 04 Aug 2026 15:56:46 UTC	Transfer	[0] 0x000000000000…43e40951 [1] 0x000000000000…d1c45d02 data: 0x000000000000000000…b4e50678
0xa75723…881166	13 days agoTue, 04 Aug 2026 15:56:46 UTC	0xbb30fb…8508	[0] 0x000000000000…43e40951 data: 0x000000000000000000…00000001
0xa75723…881166	13 days agoTue, 04 Aug 2026 15:56:46 UTC	Transfer	[0] 0x000000000000…78e12c56 [1] 0x000000000000…d1c45d02 data: 0x000000000000000000…b40001a9
0xa75723…881166	13 days agoTue, 04 Aug 2026 15:56:46 UTC	Transfer	[0] 0x000000000000…78e12c56 [1] 0x000000000000…43e40951 data: 0x000000000000000000…ecfffe57
0xa75723…881166	13 days agoTue, 04 Aug 2026 15:56:46 UTC	Approval	[0] 0x000000000000…78e12c56 [1] 0x000000000000…3ac78ba3 data: 0xffffffffffffffffff…ffffffff
0x7e5617…8351b9	13 days agoTue, 04 Aug 2026 15:56:43 UTC	Transfer	[0] 0x000000000000…00000000 [1] 0x000000000000…78e12c56 data: 0x000000000000000000…a1000000

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Latest 0 from a total of 0 transactions

	Transaction Hash	Method ?	Block	Age	From		To	Amount	Txn Fee ?
No direct transactions — this address is only ever reached via internal calls (common for a contract only invoked through a router or proxy). View Internal Transactions →

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2 value-transferring internal transactions

Block	Age	Parent Transaction Hash	Type	Method	From		To	Value
27,749,010	13 days agoTue, 04 Aug 2026 15:56:46 UTC	0xa75723…881166	CALL	launch	0x8366…0951	IN	0xeb10…e0cc	0.00015 ETH
27,748,984	13 days agoTue, 04 Aug 2026 15:56:43 UTC	0x7e5617…8351b9	CREATE2	optimized_routeFill921336808	0x4e59…956c	IN	0xeb10…e0cc	0 ETH

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