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UmiToken (UMI) (@$0.00)

Multichain Info

1 address found via
Transaction Hash
Method
Block
From
To
Transfer223263282025-04-22 18:25:475 hrs ago1745346347IN
UmiToken: UMI Token
0 ETH0.000073281.56309497
Approve223022692025-04-19 9:51:353 days ago1745056295IN
UmiToken: UMI Token
0 ETH0.000017090.36861516
Approve222983912025-04-18 20:52:234 days ago1745009543IN
UmiToken: UMI Token
0 ETH0.000014950.32233489
Approve222965142025-04-18 14:34:594 days ago1744986899IN
UmiToken: UMI Token
0 ETH0.000027730.60102018
Approve222949712025-04-18 9:24:114 days ago1744968251IN
UmiToken: UMI Token
0 ETH0.000018010.38883579
Approve222838712025-04-16 20:13:476 days ago1744834427IN
UmiToken: UMI Token
0 ETH0.000019740.4255933
Approve222723442025-04-15 5:36:597 days ago1744695419IN
UmiToken: UMI Token
0 ETH0.00002160.46636214
Approve222696782025-04-14 20:41:358 days ago1744663295IN
UmiToken: UMI Token
0 ETH0.000030380.6584496
Approve222628912025-04-13 21:58:119 days ago1744581491IN
UmiToken: UMI Token
0 ETH0.000114862.47898474
Approve222455892025-04-11 12:05:5911 days ago1744373159IN
UmiToken: UMI Token
0 ETH0.000035880.77756319
Approve222430582025-04-11 3:38:4711 days ago1744342727IN
UmiToken: UMI Token
0 ETH0.000024020.52155172
Approve221844312025-04-02 23:12:1120 days ago1743635531IN
UmiToken: UMI Token
0 ETH0.000097662.1198829
Approve221831872025-04-02 19:02:2320 days ago1743620543IN
UmiToken: UMI Token
0 ETH0.000028730.61927041
Approve221796912025-04-02 7:20:1120 days ago1743578411IN
UmiToken: UMI Token
0 ETH0.000034790.75
Transfer221792782025-04-02 5:56:5920 days ago1743573419IN
UmiToken: UMI Token
0 ETH0.00001810.60814819
Transfer221792772025-04-02 5:56:4720 days ago1743573407IN
UmiToken: UMI Token
0 ETH0.000019160.64357605
Transfer221792722025-04-02 5:55:4720 days ago1743573347IN
UmiToken: UMI Token
0 ETH0.00001840.61836185
Transfer221792702025-04-02 5:55:2320 days ago1743573323IN
UmiToken: UMI Token
0 ETH0.000018650.62668663
Transfer221792682025-04-02 5:54:5920 days ago1743573299IN
UmiToken: UMI Token
0 ETH0.000028440.60693997
Approve221702302025-03-31 23:39:1122 days ago1743464351IN
UmiToken: UMI Token
0 ETH0.000026490.57517371
Approve221397802025-03-27 17:35:3526 days ago1743096935IN
UmiToken: UMI Token
0 ETH0.000018740.77731888
Approve221396962025-03-27 17:18:3526 days ago1743095915IN
UmiToken: UMI Token
0 ETH0.000015980.66310011
Approve221396262025-03-27 17:04:3526 days ago1743095075IN
UmiToken: UMI Token
0 ETH0.000017770.73718719
Approve221263232025-03-25 20:33:3528 days ago1742934815IN
UmiToken: UMI Token
0 ETH0.000027421.04792385
Approve221262072025-03-25 20:10:2328 days ago1742933423IN
UmiToken: UMI Token
0 ETH0.00004570.99190498
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Contract Source Code Verified (Exact Match)

Contract Name:
UMIToken

Compiler Version
v0.4.26+commit.4563c3fc

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion, MIT license
/**
 *Submitted for verification at Etherscan.io on 2021-04-03
*/

pragma solidity ^0.4.24;

// ----------------------------------------------------------------------------
//
// Symbol        : UMI
// Name          : UmiToken
// Total supply  : 33000000000000000000000000000
// Decimals      : 18
// Owner Account : 0x7EC37858e826D95eBC75574957371Dd90c2A2BFa
//
// NFTs to the moon.
//
// (c) by Umi Digital 2021 
// ----------------------------------------------------------------------------


// ----------------------------------------------------------------------------
// Lib: Safe Math
// ----------------------------------------------------------------------------
contract SafeMath {

    function safeAdd(uint a, uint b) public pure returns (uint c) {
        c = a + b;
        require(c >= a);
    }

    function safeSub(uint a, uint b) public pure returns (uint c) {
        require(b <= a);
        c = a - b;
    }

    function safeMul(uint a, uint b) public pure returns (uint c) {
        c = a * b;
        require(a == 0 || c / a == b);
    }

    function safeDiv(uint a, uint b) public pure returns (uint c) {
        require(b > 0);
        c = a / b;
    }
}


/**
ERC Token Standard #20 Interface
https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
*/
contract ERC20Interface {
    function totalSupply() public constant returns (uint);
    function balanceOf(address tokenOwner) public constant returns (uint balance);
    function allowance(address tokenOwner, address spender) public constant returns (uint remaining);
    function transfer(address to, uint tokens) public returns (bool success);
    function approve(address spender, uint tokens) public returns (bool success);
    function transferFrom(address from, address to, uint tokens) public returns (bool success);

    event Transfer(address indexed from, address indexed to, uint tokens);
    event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
}


/**
Contract function to receive approval and execute function in one call

Borrowed from MiniMeToken
*/
contract ApproveAndCallFallBack {
    function receiveApproval(address from, uint256 tokens, address token, bytes data) public;
}

/**
ERC20 Token, with the addition of symbol, name and decimals and assisted token transfers
*/
contract UMIToken is ERC20Interface, SafeMath {
    string public symbol;
    string public  name;
    uint8 public decimals;
    uint public _totalSupply;

    mapping(address => uint) balances;
    mapping(address => mapping(address => uint)) allowed;


    // ------------------------------------------------------------------------
    // Constructor
    // ------------------------------------------------------------------------
    constructor() public {
        symbol = "UMI";
        name = "UmiToken";
        decimals = 18;
        _totalSupply = 33000000000000000000000000000;
        balances[0x7EC37858e826D95eBC75574957371Dd90c2A2BFa] = _totalSupply;
        emit Transfer(address(0), 0x7EC37858e826D95eBC75574957371Dd90c2A2BFa, _totalSupply);
    }


    // ------------------------------------------------------------------------
    // Total supply
    // ------------------------------------------------------------------------
    function totalSupply() public constant returns (uint) {
        return _totalSupply  - balances[address(0)];
    }


    // ------------------------------------------------------------------------
    // Get the token balance for account tokenOwner
    // ------------------------------------------------------------------------
    function balanceOf(address tokenOwner) public constant returns (uint balance) {
        return balances[tokenOwner];
    }


    // ------------------------------------------------------------------------
    // Transfer the balance from token owner's account to to account
    // - Owner's account must have sufficient balance to transfer
    // - 0 value transfers are allowed
    // ------------------------------------------------------------------------
    function transfer(address to, uint tokens) public returns (bool success) {
        balances[msg.sender] = safeSub(balances[msg.sender], tokens);
        balances[to] = safeAdd(balances[to], tokens);
        emit Transfer(msg.sender, to, tokens);
        return true;
    }


    // ------------------------------------------------------------------------
    // Token owner can approve for spender to transferFrom(...) tokens
    // from the token owner's account
    //
    // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
    // recommends that there are no checks for the approval double-spend attack
    // as this should be implemented in user interfaces 
    // ------------------------------------------------------------------------
    function approve(address spender, uint tokens) public returns (bool success) {
        allowed[msg.sender][spender] = tokens;
        emit Approval(msg.sender, spender, tokens);
        return true;
    }


    // ------------------------------------------------------------------------
    // Transfer tokens from the from account to the to account
    // 
    // The calling account must already have sufficient tokens approve(...)-d
    // for spending from the from account and
    // - From account must have sufficient balance to transfer
    // - Spender must have sufficient allowance to transfer
    // - 0 value transfers are allowed
    // ------------------------------------------------------------------------
    function transferFrom(address from, address to, uint tokens) public returns (bool success) {
        balances[from] = safeSub(balances[from], tokens);
        allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
        balances[to] = safeAdd(balances[to], tokens);
        emit Transfer(from, to, tokens);
        return true;
    }


    // ------------------------------------------------------------------------
    // Returns the amount of tokens approved by the owner that can be
    // transferred to the spender's account
    // ------------------------------------------------------------------------
    function allowance(address tokenOwner, address spender) public constant returns (uint remaining) {
        return allowed[tokenOwner][spender];
    }


    // ------------------------------------------------------------------------
    // Token owner can approve for spender to transferFrom(...) tokens
    // from the token owner's account. The spender contract function
    // receiveApproval(...) is then executed
    // ------------------------------------------------------------------------
    function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) {
        allowed[msg.sender][spender] = tokens;
        emit Approval(msg.sender, spender, tokens);
        ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data);
        return true;
    }


    // ------------------------------------------------------------------------
    // Don't accept ETH
    // ------------------------------------------------------------------------
    function () public payable {
        revert();
    }
}

Contract Security Audit

Contract ABI

API
[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"spender","type":"address"},{"name":"tokens","type":"uint256"}],"name":"approve","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"from","type":"address"},{"name":"to","type":"address"},{"name":"tokens","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"_totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"tokenOwner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256"}],"name":"safeSub","outputs":[{"name":"c","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"name":"to","type":"address"},{"name":"tokens","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256"}],"name":"safeDiv","outputs":[{"name":"c","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"name":"spender","type":"address"},{"name":"tokens","type":"uint256"},{"name":"data","type":"bytes"}],"name":"approveAndCall","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256"}],"name":"safeMul","outputs":[{"name":"c","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[{"name":"tokenOwner","type":"address"},{"name":"spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256"}],"name":"safeAdd","outputs":[{"name":"c","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"tokens","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"tokenOwner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"tokens","type":"uint256"}],"name":"Approval","type":"event"}]

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Swarm Source

bzzr://08b4e4221b2b88baf363ab1c6134d6f127bb0b852e8104e33a4c57c7a2369fcb

Block Transaction Difficulty Gas Used Reward
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Block Uncle Number Difficulty Gas Used Reward
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OVERVIEW

Umi is a decentralised art project built on the Sora (XOR), Polkadot (DOT) and Ethereum (ETH) blockchains.

Validator Index Block Amount
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Transaction Hash Block Value Eth2 PubKey Valid
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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.