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Latest 25 from a total of 686 transactions
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Claim | 17656625 | 397 days ago | IN | 0 ETH | 0.00138356 | ||||
Claim | 16923370 | 501 days ago | IN | 0 ETH | 0.00140887 | ||||
Claim | 16905102 | 503 days ago | IN | 0 ETH | 0.00151548 | ||||
Claim | 16147393 | 609 days ago | IN | 0 ETH | 0.00179708 | ||||
Claim | 15716479 | 669 days ago | IN | 0 ETH | 0.00258144 | ||||
Claim | 15535005 | 695 days ago | IN | 0 ETH | 0.00280475 | ||||
Claim | 15534536 | 695 days ago | IN | 0 ETH | 0.00145089 | ||||
Claim | 15346822 | 725 days ago | IN | 0 ETH | 0.00115229 | ||||
Claim | 15116981 | 761 days ago | IN | 0 ETH | 0.00250625 | ||||
Claim | 15108968 | 762 days ago | IN | 0 ETH | 0.00182249 | ||||
Claim | 14907359 | 797 days ago | IN | 0 ETH | 0.00235273 | ||||
Claim | 14723029 | 826 days ago | IN | 0 ETH | 0.00140391 | ||||
Claim | 14419293 | 874 days ago | IN | 0 ETH | 0.00219448 | ||||
Claim | 14289743 | 894 days ago | IN | 0 ETH | 0.0049412 | ||||
Claim | 14254685 | 899 days ago | IN | 0 ETH | 0.00527173 | ||||
Claim | 14241197 | 902 days ago | IN | 0 ETH | 0.00114668 | ||||
Claim | 14241197 | 902 days ago | IN | 0 ETH | 0.00314296 | ||||
Claim | 14239014 | 902 days ago | IN | 0 ETH | 0.00455354 | ||||
Claim | 14164275 | 913 days ago | IN | 0 ETH | 0.00589268 | ||||
Claim | 14149322 | 916 days ago | IN | 0 ETH | 0.00390285 | ||||
Claim | 14149027 | 916 days ago | IN | 0 ETH | 0.00415184 | ||||
Claim | 14125256 | 920 days ago | IN | 0 ETH | 0.0080756 | ||||
Claim | 14058332 | 930 days ago | IN | 0 ETH | 0.01044336 | ||||
Claim | 14033844 | 934 days ago | IN | 0 ETH | 0.00923156 | ||||
Claim | 14012827 | 937 days ago | IN | 0 ETH | 0.01174549 |
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Contract Name:
MerkleDistributor
Compiler Version
v0.6.11+commit.5ef660b1
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: UNLICENSED pragma solidity =0.6.11; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/cryptography/MerkleProof.sol"; import "./interfaces/IMerkleDistributor.sol"; contract MerkleDistributor is IMerkleDistributor { uint256 public immutable override minClaimTime; address public immutable override token; bytes32 public immutable override merkleRoot; // This is a packed array of booleans. mapping(uint256 => uint256) private claimedBitMap; constructor(address token_, bytes32 merkleRoot_, uint256 minClaimTime_) public { token = token_; merkleRoot = merkleRoot_; minClaimTime = minClaimTime_; } function isClaimed(uint256 index) public view override returns (bool) { uint256 claimedWordIndex = index / 256; uint256 claimedBitIndex = index % 256; uint256 claimedWord = claimedBitMap[claimedWordIndex]; uint256 mask = (1 << claimedBitIndex); return claimedWord & mask == mask; } function _setClaimed(uint256 index) private { uint256 claimedWordIndex = index / 256; uint256 claimedBitIndex = index % 256; claimedBitMap[claimedWordIndex] = claimedBitMap[claimedWordIndex] | (1 << claimedBitIndex); } function claim(uint256 index, address account, uint256 amount, bytes32[] calldata merkleProof) external override { require(block.timestamp >= minClaimTime, "MerkleDistributor: prior to minimum claim time."); require(!isClaimed(index), 'MerkleDistributor: Drop already claimed.'); // Verify the merkle proof. bytes32 node = keccak256(abi.encodePacked(index, account, amount)); require(MerkleProof.verify(merkleProof, merkleRoot, node), 'MerkleDistributor: Invalid proof.'); // Mark it claimed and send the token. _setClaimed(index); require(IERC20(token).transfer(account, amount), 'MerkleDistributor: Transfer failed.'); emit Claimed(index, account, amount); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); }
// SPDX-License-Identifier: MIT pragma solidity ^0.6.0; /** * @dev These functions deal with verification of Merkle trees (hash trees), */ library MerkleProof { /** * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree * defined by `root`. For this, a `proof` must be provided, containing * sibling hashes on the branch from the leaf to the root of the tree. Each * pair of leaves and each pair of pre-images are assumed to be sorted. */ function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { bytes32 proofElement = proof[i]; if (computedHash <= proofElement) { // Hash(current computed hash + current element of the proof) computedHash = keccak256(abi.encodePacked(computedHash, proofElement)); } else { // Hash(current element of the proof + current computed hash) computedHash = keccak256(abi.encodePacked(proofElement, computedHash)); } } // Check if the computed hash (root) is equal to the provided root return computedHash == root; } }
// SPDX-License-Identifier: UNLICENSED pragma solidity >=0.5.0; // Allows anyone to claim a token if they exist in a merkle root. interface IMerkleDistributor { // Returns the address of the token distributed by this contract. function token() external view returns (address); // Returns the merkle root of the merkle tree containing account balances available to claim. function merkleRoot() external view returns (bytes32); // Returns the minimum claim time for the token function minClaimTime() external view returns (uint256); // Returns true if the index has been marked claimed. function isClaimed(uint256 index) external view returns (bool); // Claim the given amount of the token to the given address. Reverts if the inputs are invalid. function claim(uint256 index, address account, uint256 amount, bytes32[] calldata merkleProof) external; // This event is triggered whenever a call to #claim succeeds. event Claimed(uint256 index, address account, uint256 amount); }
{ "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"token_","type":"address"},{"internalType":"bytes32","name":"merkleRoot_","type":"bytes32"},{"internalType":"uint256","name":"minClaimTime_","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"index","type":"uint256"},{"indexed":false,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Claimed","type":"event"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"},{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes32[]","name":"merkleProof","type":"bytes32[]"}],"name":"claim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"isClaimed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"merkleRoot","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"minClaimTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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Deployed Bytecode
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
Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000cfeaead4947f0705a14ec42ac3d44129e1ef3ed534e18af42a82ff6dbcad3853157ba252b4d14ad9bbfe8e1913133da13eb1af4800000000000000000000000000000000000000000000000000000000615a4400
-----Decoded View---------------
Arg [0] : token_ (address): 0xCFEAead4947f0705A14ec42aC3D44129E1Ef3eD5
Arg [1] : merkleRoot_ (bytes32): 0x34e18af42a82ff6dbcad3853157ba252b4d14ad9bbfe8e1913133da13eb1af48
Arg [2] : minClaimTime_ (uint256): 1633305600
-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 000000000000000000000000cfeaead4947f0705a14ec42ac3d44129e1ef3ed5
Arg [1] : 34e18af42a82ff6dbcad3853157ba252b4d14ad9bbfe8e1913133da13eb1af48
Arg [2] : 00000000000000000000000000000000000000000000000000000000615a4400
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Multichain Portfolio | 26 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|---|---|---|---|---|
ETH | 100.00% | $0.061085 | 80,951 | $4,944.89 |
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