Contract

PCATNFTStaking0x1DB06e580585F5523E9cD1831CC4e6960d96E926

Overview

ETH Balance

0 ETH

ETH Value

$0.00 (@ $1,908/ETH)

Token Holdings

—

More Info

Private Name Tags

—

Contract Creator

0x057c…7841 at txn 0x5978d2…a44b08

Additional Info

Funded By

—

Token Approvals

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Block	Age	Parent Transaction Hash	Type	Method	From		To	Value
19,903,323	22 days agoSun, 26 Jul 2026 13:23:03 UTC	0x5978d2…a44b08	CREATE	launch	0x057c…7841	IN	0x1db0…e926	0 ETH

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no NFT transfers for this address yet

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✓ VerifiedExact MatchPCATNFTStaking⤢ Open full

Contract Name

PCATNFTStaking

Compiler

solidity · v0.8.35+commit.47b9dedd

Optimization

Yes · 200 runs

EVM Version

osaka

License

mit

Source

Mirrored from Robinhood Chain explorer

Contract Source Code

Outline

C PCATNFTStaking

ƒ initializeController

ƒ startSchedule

ƒ endSchedule

ƒ setPaused

ƒ stake

ƒ unstake

ƒ claim

ƒ earned

ƒ currentRewardPerNft

ƒ lastTimeRewardApplicable

ƒ currentEpoch

ƒ _updateGlobal

ƒ _updateAccount

ƒ onERC721Received

PCATNFTStaking.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.35;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";
import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";


import "./PCATCompanionNFT.sol";
import "./PCATRewardsPool.sol";

contract PCATNFTStaking is IERC721Receiver, ReentrancyGuard {
    bytes32 public constant launchFingerprint = 0x064072855cef16f15e97223103f448dc406a937a3e8135d94029410f15a74a51;

    error Unauthorized();
    error AlreadyInitialized();
    error InvalidAddress();
    error InvalidSchedule();
    error ScheduleActive();
    error StakingPaused();
    error NotTokenOwner();
    error NotTokenStaker();
    error InvalidReceipt();
    error NothingToClaim();

    IERC721 public immutable nftCollection;
    PCATRewardsPool public immutable rewardsPool;
    address public immutable initializer;

    address public controller;
    bool public paused;
    uint256 public totalStaked;
    uint256 public totalAccrued;
    uint256 public totalClaimed;
    uint256 public rewardRatePerNftPerSecond;
    uint64 public periodStart;
    uint64 public periodFinish;
    uint64 public epochDuration;
    uint64 public lastUpdateTime;
    uint256 public rewardPerNftStored;

    mapping(uint256 => address) public stakerOf;
    mapping(address => uint256) public stakedBalance;
    mapping(address => uint256) public userRewardPerNftPaid;
    mapping(address => uint256) public rewards;

    uint256 private receivingTokenIdPlusOne;

    event ControllerInitialized(address indexed controller);
    event ScheduleStarted(uint256 rewardRatePerNftPerSecond, uint64 periodStart, uint64 periodFinish, uint64 epochDuration);
    event ScheduleEnded(uint64 endedAt);
    event PauseChanged(bool paused);
    event Staked(address indexed account, uint256 indexed tokenId);
    event Unstaked(address indexed account, uint256 indexed tokenId);
    event RewardClaimed(address indexed account, uint256 amount);

    constructor(
        address nftCollection_,
        address rewardsPool_,
        address initializer_
    ) {
        if (nftCollection_ == address(0) || rewardsPool_ == address(0) || initializer_ == address(0)) {
            revert InvalidAddress();
        }
        nftCollection = IERC721(nftCollection_);
        rewardsPool = PCATRewardsPool(rewardsPool_);
        initializer = initializer_;
    }

    modifier onlyController() {
        if (msg.sender != controller) revert Unauthorized();
        _;
    }

    function initializeController(address controller_) external {
        if (msg.sender != initializer) revert Unauthorized();
        if (controller != address(0)) revert AlreadyInitialized();
        if (controller_ == address(0)) revert InvalidAddress();
        controller = controller_;
        emit ControllerInitialized(controller_);
    }

    function startSchedule(
        uint256 rewardRate_,
        uint64 duration_,
        uint64 epochDuration_
    ) external onlyController {
        _updateGlobal();
        if (block.timestamp < periodFinish) revert ScheduleActive();
        if (
            rewardRate_ == 0 || duration_ == 0 || epochDuration_ == 0
                || duration_ % epochDuration_ != 0
        ) revert InvalidSchedule();
        uint64 startedAt = uint64(block.timestamp);
        rewardRatePerNftPerSecond = rewardRate_;
        periodStart = startedAt;
        periodFinish = startedAt + duration_;
        epochDuration = epochDuration_;
        lastUpdateTime = startedAt;
        emit ScheduleStarted(rewardRate_, startedAt, periodFinish, epochDuration_);
    }

    function endSchedule() external onlyController {
        _updateGlobal();
        uint64 endedAt = uint64(block.timestamp);
        if (endedAt < periodFinish) periodFinish = endedAt;
        rewardRatePerNftPerSecond = 0;
        lastUpdateTime = endedAt;
        emit ScheduleEnded(endedAt);
    }

    function setPaused(bool paused_) external onlyController {
        paused = paused_;
        emit PauseChanged(paused_);
    }

    function stake(uint256 tokenId) external nonReentrant {
        if (paused) revert StakingPaused();
        if (nftCollection.ownerOf(tokenId) != msg.sender) revert NotTokenOwner();
        _updateAccount(msg.sender);
        stakerOf[tokenId] = msg.sender;
        stakedBalance[msg.sender] += 1;
        totalStaked += 1;
        receivingTokenIdPlusOne = tokenId + 1;
        nftCollection.safeTransferFrom(msg.sender, address(this), tokenId);
        receivingTokenIdPlusOne = 0;
        emit Staked(msg.sender, tokenId);
    }

    function unstake(uint256 tokenId) external nonReentrant {
        if (stakerOf[tokenId] != msg.sender) revert NotTokenStaker();
        _updateAccount(msg.sender);
        delete stakerOf[tokenId];
        stakedBalance[msg.sender] -= 1;
        totalStaked -= 1;
        nftCollection.safeTransferFrom(address(this), msg.sender, tokenId);
        emit Unstaked(msg.sender, tokenId);
    }

    function claim() external nonReentrant returns (uint256 amount) {
        _updateAccount(msg.sender);
        amount = rewards[msg.sender];
        if (amount == 0) revert NothingToClaim();
        rewards[msg.sender] = 0;
        totalClaimed += amount;
        rewardsPool.payReward(msg.sender, amount);
        emit RewardClaimed(msg.sender, amount);
    }

    function earned(address account) public view returns (uint256) {
        return rewards[account]
            + stakedBalance[account] * (currentRewardPerNft() - userRewardPerNftPaid[account]);
    }

    function currentRewardPerNft() public view returns (uint256) {
        uint64 applicable = lastTimeRewardApplicable();
        if (applicable <= lastUpdateTime) return rewardPerNftStored;
        return rewardPerNftStored
            + uint256(applicable - lastUpdateTime) * rewardRatePerNftPerSecond;
    }

    function lastTimeRewardApplicable() public view returns (uint64) {
        return uint64(block.timestamp < periodFinish ? block.timestamp : periodFinish);
    }

    function currentEpoch() external view returns (uint256) {
        if (epochDuration == 0 || block.timestamp <= periodStart) return 0;
        uint256 elapsed = lastTimeRewardApplicable() - periodStart;
        return elapsed / epochDuration;
    }

    function _updateGlobal() private {
        uint64 applicable = lastTimeRewardApplicable();
        if (applicable <= lastUpdateTime) return;
        uint256 elapsed = applicable - lastUpdateTime;
        uint256 perNft = elapsed * rewardRatePerNftPerSecond;
        rewardPerNftStored += perNft;
        lastUpdateTime = applicable;
        uint256 accrued = perNft * totalStaked;
        if (accrued > 0) {
            totalAccrued += accrued;
            rewardsPool.recognizeReward(accrued);
        }
    }

    function _updateAccount(address account) private {
        _updateGlobal();
        rewards[account] += stakedBalance[account]
            * (rewardPerNftStored - userRewardPerNftPaid[account]);
        userRewardPerNftPaid[account] = rewardPerNftStored;
    }

    function onERC721Received(
        address operator,
        address,
        uint256 tokenId,
        bytes calldata
    ) external view returns (bytes4) {
        if (
            msg.sender != address(nftCollection)
                || operator != address(this)
                || receivingTokenIdPlusOne != tokenId + 1
        ) revert InvalidReceipt();
        return IERC721Receiver.onERC721Received.selector;
    }
}

Contract ABI

[
 {
  "type": "constructor",
  "inputs": [
   {
    "name": "nftCollection_",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "rewardsPool_",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "initializer_",
    "type": "address",
    "internalType": "address"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "AlreadyInitialized",
  "type": "error",
  "inputs": []
 },
 {
  "name": "InvalidAddress",
  "type": "error",
  "inputs": []
 },
 {
  "name": "InvalidReceipt",
  "type": "error",
  "inputs": []
 },
 {
  "name": "InvalidSchedule",
  "type": "error",
  "inputs": []
 },
 {
  "name": "NotTokenOwner",
  "type": "error",
  "inputs": []
 },
 {
  "name": "NotTokenStaker",
  "type": "error",
  "inputs": []
 },
 {
  "name": "NothingToClaim",
  "type": "error",
  "inputs": []
 },
 {
  "name": "ReentrancyGuardReentrantCall",
  "type": "error",
  "inputs": []
 },
 {
  "name": "ScheduleActive",
  "type": "error",
  "inputs": []
 },
 {
  "name": "StakingPaused",
  "type": "error",
  "inputs": []
 },
 {
  "name": "Unauthorized",
  "type": "error",
  "inputs": []
 },
 {
  "name": "ControllerInitialized",
  "type": "event",
  "inputs": [
   {
    "name": "controller",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   }
  ],
  "anonymous": false
 },
 {
  "name": "PauseChanged",
  "type": "event",
  "inputs": [
   {
    "name": "paused",
    "type": "bool",
    "indexed": false,
    "internalType": "bool"
   }
  ],
  "anonymous": false
 },
 {
  "name": "RewardClaimed",
  "type": "event",
  "inputs": [
   {
    "name": "account",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "amount",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   }
  ],
  "anonymous": false
 },
 {
  "name": "ScheduleEnded",
  "type": "event",
  "inputs": [
   {
    "name": "endedAt",
    "type": "uint64",
    "indexed": false,
    "internalType": "uint64"
   }
  ],
  "anonymous": false
 },
 {
  "name": "ScheduleStarted",
  "type": "event",
  "inputs": [
   {
    "name": "rewardRatePerNftPerSecond",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   },
   {
    "name": "periodStart",
    "type": "uint64",
    "indexed": false,
    "internalType": "uint64"
   },
   {
    "name": "periodFinish",
    "type": "uint64",
    "indexed": false,
    "internalType": "uint64"
   },
   {
    "name": "epochDuration",
    "type": "uint64",
    "indexed": false,
    "internalType": "uint64"
   }
  ],
  "anonymous": false
 },
 {
  "name": "Staked",
  "type": "event",
  "inputs": [
   {
    "name": "account",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "tokenId",
    "type": "uint256",
    "indexed": true,
    "internalType": "uint256"
   }
  ],
  "anonymous": false
 },
 {
  "name": "Unstaked",
  "type": "event",
  "inputs": [
   {
    "name": "account",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "tokenId",
    "type": "uint256",
    "indexed": true,
    "internalType": "uint256"
   }
  ],
  "anonymous": false
 },
 {
  "name": "claim",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "amount",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "controller",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "address",
    "internalType": "address"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "currentEpoch",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "currentRewardPerNft",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "earned",
  "type": "function",
  "inputs": [
   {
    "name": "account",
    "type": "address",
    "internalType": "address"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "endSchedule",
  "type": "function",
  "inputs": [],
  "outputs": [],
  "stateMutability": "nonpayable"
 },
 {
  "name": "epochDuration",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "initializeController",
  "type": "function",
  "inputs": [
   {
    "name": "controller_",
    "type": "address",
    "internalType": "address"
   }
  ],
  "outputs": [],
  "stateMutability": "nonpayable"
 },
 {
  "name": "initializer",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "address",
    "internalType": "address"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "lastTimeRewardApplicable",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "lastUpdateTime",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "launchFingerprint",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "bytes32",
    "internalType": "bytes32"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "nftCollection",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "address",
    "internalType": "contract IERC721"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "onERC721Received",
  "type": "function",
  "inputs": [
   {
    "name": "operator",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "",
    "type": "address",
    "internalType": "address"
   },
   {
    "name": "tokenId",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "",
    "type": "bytes",
    "internalType": "bytes"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "bytes4",
    "internalType": "bytes4"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "paused",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "bool",
    "internalType": "bool"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "periodFinish",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "periodStart",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "rewardPerNftStored",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "rewardRatePerNftPerSecond",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "rewards",
  "type": "function",
  "inputs": [
   {
    "name": "",
    "type": "address",
    "internalType": "address"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "rewardsPool",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "address",
    "internalType": "contract PCATRewardsPool"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "setPaused",
  "type": "function",
  "inputs": [
   {
    "name": "paused_",
    "type": "bool",
    "internalType": "bool"
   }
  ],
  "outputs": [],
  "stateMutability": "nonpayable"
 },
 {
  "name": "stake",
  "type": "function",
  "inputs": [
   {
    "name": "tokenId",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "outputs": [],
  "stateMutability": "nonpayable"
 },
 {
  "name": "stakedBalance",
  "type": "function",
  "inputs": [
   {
    "name": "",
    "type": "address",
    "internalType": "address"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "stakerOf",
  "type": "function",
  "inputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "address",
    "internalType": "address"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "startSchedule",
  "type": "function",
  "inputs": [
   {
    "name": "rewardRate_",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "duration_",
    "type": "uint64",
    "internalType": "uint64"
   },
   {
    "name": "epochDuration_",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "outputs": [],
  "stateMutability": "nonpayable"
 },
 {
  "name": "totalAccrued",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "totalClaimed",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "totalStaked",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "unstake",
  "type": "function",
  "inputs": [
   {
    "name": "tokenId",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "outputs": [],
  "stateMutability": "nonpayable"
 },
 {
  "name": "userRewardPerNftPaid",
  "type": "function",
  "inputs": [
   {
    "name": "",
    "type": "address",
    "internalType": "address"
   }
  ],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 }
]

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
0x5978d2…a44b08	22 days agoSun, 26 Jul 2026 13:23:03 UTC	0xbbd886…587a	data: 0x000000000000000000…00015180
0x5978d2…a44b08	22 days agoSun, 26 Jul 2026 13:23:03 UTC	0xaf6cb4…c714	[0] 0x000000000000…919e6b1a

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Token	Symbol	Balance	Price	Value
no token holdings

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.

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

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

10,000+ event logs emitted by this contract

Txn Hash	Age	Event	Topics / Data
0x5978d2…a44b08	22 days agoSun, 26 Jul 2026 13:23:03 UTC	0xbbd886…587a	data: 0x000000000000000000…00015180
0x5978d2…a44b08	22 days agoSun, 26 Jul 2026 13:23:03 UTC	0xaf6cb4…c714	[0] 0x000000000000…919e6b1a

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

HIDE LOW VALUE

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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1 value-transferring internal transactions

Block	Age	Parent Transaction Hash	Type	Method	From		To	Value
19,903,323	22 days agoSun, 26 Jul 2026 13:23:03 UTC	0x5978d2…a44b08	CREATE	launch	0x057c…7841	IN	0x1db0…e926	0 ETH

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