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Latest 25 from a total of 1,244 transactions
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Claim | 17536594 | 551 days ago | IN | 0 ETH | 0.0011934 | ||||
Claim | 17162296 | 604 days ago | IN | 0 ETH | 0.00324047 | ||||
Claim | 16965503 | 632 days ago | IN | 0 ETH | 0.00237271 | ||||
Claim | 16656201 | 675 days ago | IN | 0 ETH | 0.00207882 | ||||
Claim | 16452557 | 704 days ago | IN | 0 ETH | 0.00117419 | ||||
Claim | 16434335 | 706 days ago | IN | 0 ETH | 0.00161456 | ||||
Claim | 16341430 | 719 days ago | IN | 0 ETH | 0.001104 | ||||
Claim | 16223317 | 736 days ago | IN | 0 ETH | 0.00047806 | ||||
Claim | 16223314 | 736 days ago | IN | 0 ETH | 0.0007709 | ||||
Claim | 16214895 | 737 days ago | IN | 0 ETH | 0.00034869 | ||||
Claim | 16214895 | 737 days ago | IN | 0 ETH | 0.00034869 | ||||
Claim | 16214895 | 737 days ago | IN | 0 ETH | 0.00034869 | ||||
Claim | 16214895 | 737 days ago | IN | 0 ETH | 0.000629 | ||||
Claim | 16139663 | 747 days ago | IN | 0 ETH | 0.00110792 | ||||
Claim | 16128721 | 749 days ago | IN | 0 ETH | 0.00042844 | ||||
Claim | 16128717 | 749 days ago | IN | 0 ETH | 0.00105367 | ||||
Claim | 15974095 | 771 days ago | IN | 0 ETH | 0.000927 | ||||
Claim | 15965446 | 772 days ago | IN | 0 ETH | 0.0008556 | ||||
Claim | 15634289 | 818 days ago | IN | 0 ETH | 0.0008406 | ||||
Claim | 15246519 | 878 days ago | IN | 0 ETH | 0.00041247 | ||||
Claim | 15133843 | 895 days ago | IN | 0 ETH | 0.00109748 | ||||
Claim | 15077400 | 904 days ago | IN | 0 ETH | 0.00219107 | ||||
Claim | 14678101 | 971 days ago | IN | 0 ETH | 0.00364358 | ||||
Claim | 14562243 | 989 days ago | IN | 0 ETH | 0.00117426 | ||||
Claim | 14562243 | 989 days ago | IN | 0 ETH | 0.00279227 |
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Contract Name:
MerkleDistributor
Compiler Version
v0.6.12+commit.27d51765
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: UNLICENSED // solhint-disable pragma solidity 0.6.12; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/cryptography/MerkleProof.sol"; import "./interfaces/IMerkleDistributor.sol"; contract MerkleDistributor is IMerkleDistributor { 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_) public { token = token_; merkleRoot = merkleRoot_; } 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(!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 <0.8.0; /** * @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: MIT pragma solidity >=0.6.0 <0.8.0; /** * @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: UNLICENSED pragma solidity ^0.6.0; // 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 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); }
{ "evmVersion": "istanbul", "libraries": {}, "metadata": { "bytecodeHash": "ipfs", "useLiteralContent": true }, "optimizer": { "enabled": true, "runs": 200 }, "remappings": [], "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "abi" ] } } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"token_","type":"address"},{"internalType":"bytes32","name":"merkleRoot_","type":"bytes32"}],"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":"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)
0000000000000000000000000ada190c81b814548ddc2f6adc4a689ce7c1fe73bcb3e26fca3db7ebea6fc6796e2e4036ca5957c54d5ef684052197f024e945b9
-----Decoded View---------------
Arg [0] : token_ (address): 0x0adA190c81b814548ddC2F6AdC4a689ce7C1FE73
Arg [1] : merkleRoot_ (bytes32): 0xbcb3e26fca3db7ebea6fc6796e2e4036ca5957c54d5ef684052197f024e945b9
-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000000ada190c81b814548ddc2f6adc4a689ce7c1fe73
Arg [1] : bcb3e26fca3db7ebea6fc6796e2e4036ca5957c54d5ef684052197f024e945b9
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Multichain Portfolio | 30 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|---|---|---|---|---|
ETH | 100.00% | $3.53 | 34,182.67 | $120,690.51 |
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