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Contract

0xB931A842fc70A88ddAA0d2e072333348C71de68D
 

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0 ETH

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$0.00

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Transaction Hash
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Block
From
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Send Many To One...155881502022-09-22 10:00:59889 days ago1663840859IN
0xB931A842...8C71de68D
0 ETH0.016557194.59743528
Send Many To Man...152314902022-07-28 14:21:14945 days ago1659018074IN
0xB931A842...8C71de68D
0 ETH0.1098195432.09148944
Send Many To One...151327202022-07-13 6:30:34960 days ago1657693834IN
0xB931A842...8C71de68D
0 ETH0.018296087.94098266
Send Many To Man...150845342022-07-05 19:47:45968 days ago1657050465IN
0xB931A842...8C71de68D
0 ETH0.3556314244.30154735
Send Many To One...137533952021-12-06 16:42:031179 days ago1638808923IN
0xB931A842...8C71de68D
0 ETH0.17766775145.54877666
Permit Access137533912021-12-06 16:40:531179 days ago1638808853IN
0xB931A842...8C71de68D
0 ETH0.00586554121.29411533
Permit Access137533352021-12-06 16:26:521179 days ago1638808012IN
0xB931A842...8C71de68D
0 ETH0.00322319113.26135513
Send Many To One...137533212021-12-06 16:22:501179 days ago1638807770IN
0xB931A842...8C71de68D
0 ETH0.40679333106.28673076
Send Many To One...134450382021-10-19 0:42:521228 days ago1634604172IN
0xB931A842...8C71de68D
0 ETH0.0440788287.94043476
Permit Access134450342021-10-19 0:40:371228 days ago1634604037IN
0xB931A842...8C71de68D
0 ETH0.0029304460.59898775
Permit Access134449992021-10-19 0:31:511228 days ago1634603511IN
0xB931A842...8C71de68D
0 ETH0.0024800751.28579428
Send Many To One...134212142021-10-15 7:11:021231 days ago1634281862IN
0xB931A842...8C71de68D
0 ETH0.02963303109.50500442
Send Many To One...134212062021-10-15 7:09:131231 days ago1634281753IN
0xB931A842...8C71de68D
0 ETH0.2081724108.00387993
Send Many To One...134212052021-10-15 7:08:581231 days ago1634281738IN
0xB931A842...8C71de68D
0 ETH0.21654922112.34994011
Send Many To One...134211872021-10-15 7:05:561231 days ago1634281556IN
0xB931A842...8C71de68D
0 ETH0.19721967102.3213934
Permit Access134211372021-10-15 6:55:111231 days ago1634280911IN
0xB931A842...8C71de68D
0 ETH0.00680745140.7720634
Send Many To One...134153022021-10-14 8:35:121232 days ago1634200512IN
0xB931A842...8C71de68D
0 ETH0.1316422168.29896179
Send Many To One...134152312021-10-14 8:18:511232 days ago1634199531IN
0xB931A842...8C71de68D
0 ETH0.1180182261.23014199
Send Many To One...134152212021-10-14 8:17:511232 days ago1634199471IN
0xB931A842...8C71de68D
0 ETH0.1453606175.41590439
Send Many To One...134152142021-10-14 8:16:301232 days ago1634199390IN
0xB931A842...8C71de68D
0 ETH0.1784300792.57298262
Send Many To One...134152102021-10-14 8:15:051232 days ago1634199305IN
0xB931A842...8C71de68D
0 ETH0.1751941490.09481511
Send Many To One...134151922021-10-14 8:10:421232 days ago1634199042IN
0xB931A842...8C71de68D
0 ETH0.1908059999.49456079
Send Many To One...134151872021-10-14 8:08:331232 days ago1634198913IN
0xB931A842...8C71de68D
0 ETH0.1692478687.03690168
Send Many To One...134148402021-10-14 6:52:021232 days ago1634194322IN
0xB931A842...8C71de68D
0 ETH0.1024718985.97472503
Permit Access134148142021-10-14 6:44:471232 days ago1634193887IN
0xB931A842...8C71de68D
0 ETH0.0044808292.65951895
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Contract Source Code Verified (Exact Match)

Contract Name:
sender721B

Compiler Version
v0.7.5+commit.eb77ed08

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, None license
/**
 *Submitted for verification at Etherscan.io on 2021-04-30
*/

//SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.7.3;
// produced by the Solididy File Flattener (c) David Appleton 2018 - 2020 and beyond
// contact : [email protected]
// source  : https://github.com/DaveAppleton/SolidityFlattery
// released under Apache 2.0 licence
// input  /Users/daveappleton/Documents/akombalabs/trait_allocator/distribution/sender721B/sender721B.sol
// flattened :  Friday, 30-Apr-21 10:47:58 UTC
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}


interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);

    /**
      * @dev Safely transfers `tokenId` token from `from` to `to`.
      *
      * Requirements:
      *
      * - `from` cannot be the zero address.
      * - `to` cannot be the zero address.
      * - `tokenId` token must exist and be owned by `from`.
      * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
      * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
      *
      * Emits a {Transfer} event.
      */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;
}
contract sender721B {

    address  _owner;
    mapping(address=>mapping(address => bool)) public access;

    event Permission(address owner, address operator,bool permission);

    modifier onlyAllowed(address owner) {
        require(access[owner][msg.sender],"Unauthorised");
        _;
    }

    modifier onlyOwner() {
        require(msg.sender == _owner,"Unauthorised");
        _;
    }

    constructor() {
        _owner = msg.sender;
    }

    function sendManyToMany(
        IERC721 token, 
        address owner, 
        address [] memory to, 
        uint256 [] memory tokenIds
        ) public  onlyAllowed(owner) {
        require(token.isApprovedForAll(owner,address(this)),"You have not set ApproveForAll");
        for (uint256 j = 0; j < to.length; j++) {
            token.transferFrom(msg.sender,to[j],tokenIds[j]);
        }
    }

   function sendManyToOne(
       IERC721 token, 
       address owner, 
       address to, 
       uint256[] memory tokenIds
       ) public onlyAllowed(owner) {
        require(token.isApprovedForAll(owner,address(this)),"You have not set ApproveForAll");
        for (uint256 j = 0; j < tokenIds.length; j++) {
            token.transferFrom(msg.sender,to,tokenIds[j]);
        }
    }

   function sendManyToManyFor(
       IERC721 token,
       address owner, 
       address [] memory to, 
       uint256 [] memory tokenIds
       ) public onlyAllowed(owner) {
        
        require(token.isApprovedForAll(owner,address(this)),"Owner has not set ApproveForAll");
        for (uint256 j = 0; j < to.length; j++) {
            token.transferFrom(owner,to[j],tokenIds[j]);
        }
    }

   function sendManyToOneFor(
       IERC721 token, 
       address owner,
       address to, 
       uint256[] memory tokenIds
       ) public onlyAllowed(owner) {
        require(token.isApprovedForAll(owner,address(this)),"Owner has not set ApproveForAll");
        for (uint256 j = 0; j < tokenIds.length; j++) {
            token.transferFrom(owner,to,tokenIds[j]);
        }
    }

    function permitAccess(address token,address operator, bool permission) external onlyOwner {
        access[token][operator] = permission;
        emit Permission(msg.sender,operator,permission);
    }
}

Contract Security Audit

Contract ABI

API
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"owner","type":"address"},{"indexed":false,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"permission","type":"bool"}],"name":"Permission","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"access","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"permission","type":"bool"}],"name":"permitAccess","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC721","name":"token","type":"address"},{"internalType":"address","name":"owner","type":"address"},{"internalType":"address[]","name":"to","type":"address[]"},{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"sendManyToMany","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC721","name":"token","type":"address"},{"internalType":"address","name":"owner","type":"address"},{"internalType":"address[]","name":"to","type":"address[]"},{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"sendManyToManyFor","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC721","name":"token","type":"address"},{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"sendManyToOne","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC721","name":"token","type":"address"},{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"sendManyToOneFor","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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Swarm Source

ipfs://02b246ed5abbfe6ca797b143de804f5b07069c81929c01b8ffc42bd6790eb068

Block Transaction Difficulty Gas Used Reward
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Block Uncle Number Difficulty Gas Used Reward
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.