ETH Price: $3,077.36 (-1.03%)
Gas: 3 Gwei

Contract

0x9e2B209afC38B74b3278B4E3e2e61dCEFC752BB2
 
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Transfer198049302024-05-05 15:57:1113 days ago1714924631IN
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0 ETH0.000481317.19751478
Transfer170628822023-04-17 0:09:59398 days ago1681690199IN
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0 ETH0.0007769323.82856659
Transfer164461332023-01-20 6:10:11485 days ago1674195011IN
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0 ETH0.0007594115.27852331
Transfer154101422022-08-25 16:26:42632 days ago1661444802IN
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0 ETH0.0012429629.47365478
Transfer142111882022-02-15 14:21:36823 days ago1644934896IN
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0 ETH0.0030957862.28307533
Transfer127139882021-06-27 4:32:441057 days ago1624768364IN
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0 ETH0.00029876.00000145
Transfer125617522021-06-03 13:14:571081 days ago1622726097IN
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0 ETH0.0022090159
Transfer120591672021-03-17 23:28:401158 days ago1616023720IN
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0 ETH00
Transfer120591672021-03-17 23:28:401158 days ago1616023720IN
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0 ETH00
Transfer112227632020-11-09 10:33:181287 days ago1604917998IN
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0 ETH0.0017282245
Transfer109950342020-10-05 9:51:281322 days ago1601891488IN
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0 ETH0.0030752880
Transfer108413432020-09-11 15:18:021345 days ago1599837482IN
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0 ETH0.00587963153.00000156
Transfer106012062020-08-05 17:58:511382 days ago1596650331IN
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0 ETH0.0012089331.46875
Transfer101025592020-05-20 11:30:101460 days ago1589974210IN
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0 ETH0.0011905531
Transfer100036692020-05-05 2:54:311475 days ago1588647271IN
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0 ETH0.000268917
Transfer99499442020-04-26 19:12:221483 days ago1587928342IN
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0 ETH0.000106812
Transfer99499442020-04-26 19:12:221483 days ago1587928342IN
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0 ETH0.000046812
Transfer99498572020-04-26 18:53:071483 days ago1587927187IN
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0 ETH0.000076812
Transfer99177762020-04-21 19:45:121488 days ago1587498312IN
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0 ETH0.000046812
Transfer99015052020-04-19 7:37:591491 days ago1587281879IN
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0 ETH0.000046812
Transfer98676682020-04-14 1:54:041496 days ago1586829244IN
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0 ETH0.000427338
Transfer98611482020-04-13 1:44:491497 days ago1586742289IN
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0 ETH0.00002341
Transfer98274632020-04-07 21:24:061502 days ago1586294646IN
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0 ETH0.00002341
Transfer98230522020-04-07 5:20:291503 days ago1586236829IN
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0 ETH0.000023411
Transfer98127302020-04-05 15:12:311504 days ago1586099551IN
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0 ETH0.000063361.65000014
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Contract Source Code Verified (Exact Match)

Contract Name:
ICTA

Compiler Version
v0.4.20+commit.3155dd80

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
/**
 *Submitted for verification at Etherscan.io on 2018-03-11
*/

pragma solidity ^0.4.13;

/*

  Copyright 2018 AICT Foundation.
  https://www.aict.io/

*/

contract ERC20Basic {
  uint256 public totalSupply;
  function balanceOf(address who) public view returns (uint256);
  function transfer(address to, uint256 value) public returns (bool);
  event Transfer(address indexed from, address indexed to, uint256 value);
}

contract ERC20 is ERC20Basic {
  function allowance(address owner, address spender) public view returns (uint256);
  function transferFrom(address from, address to, uint256 value) public returns (bool);
  function approve(address spender, uint256 value) public returns (bool);
  event Approval(address indexed owner, address indexed spender, uint256 value);
}
contract Ownable {
  address public owner;

  event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

  function Ownable() public {
    owner = msg.sender;
  }

  modifier onlyOwner() {
    require(msg.sender == owner);
    _;
  }

  function transferOwnership(address newOwner) public onlyOwner {
    require(newOwner != address(0));
    OwnershipTransferred(owner, newOwner);
    owner = newOwner;
  }

}

library SafeMath {
  function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    if (a == 0) {
      return 0;
    }
    uint256 c = a * b;
    assert(c / a == b);
    return c;
  }

  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    uint256 c = a / b;
    return c;
  }

  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    assert(b <= a);
    return a - b;
  }

  function add(uint256 a, uint256 b) internal pure returns (uint256) {
    uint256 c = a + b;
    assert(c >= a);
    return c;
  }
}

contract ICTA is ERC20,Ownable{
	using SafeMath for uint256;
	string public constant name="ICTA";
	string public constant symbol="ICTA";
	string public constant version = "0";
	uint256 public constant decimals = 9;
	uint256 public constant MAX_SUPPLY=500000000*10**decimals;
	uint256 public airdropSupply;
    struct epoch  {
        uint256 lockEndTime;
        uint256 lockAmount;
    }

    mapping(address=>epoch[]) public lockEpochsMap;
    mapping(address => uint256) balances;
	mapping (address => mapping (address => uint256)) allowed;
	

	function ICTA()public{
		totalSupply = 500000000 ;
		airdropSupply = 0;
		totalSupply=MAX_SUPPLY;
		balances[msg.sender] = MAX_SUPPLY;
		Transfer(0x0, msg.sender, MAX_SUPPLY);
	}


	modifier notReachTotalSupply(uint256 _value,uint256 _rate){
		assert(MAX_SUPPLY>=totalSupply.add(_value.mul(_rate)));
		_;
	}

  	function transfer(address _to, uint256 _value) public  returns (bool)
 	{
		require(_to != address(0));

		epoch[] storage epochs = lockEpochsMap[msg.sender];
		uint256 needLockBalance = 0;
		for(uint256 i = 0;i<epochs.length;i++)
		{
			if( now < epochs[i].lockEndTime )
			{
				needLockBalance=needLockBalance.add(epochs[i].lockAmount);
			}
		}

		require(balances[msg.sender].sub(_value)>=needLockBalance);
		balances[msg.sender] = balances[msg.sender].sub(_value);
		balances[_to] = balances[_to].add(_value);
		Transfer(msg.sender, _to, _value);
		return true;
  	}

  	function balanceOf(address _owner) public constant returns (uint256 balance) 
  	{
		return balances[_owner];
  	}

  	function transferFrom(address _from, address _to, uint256 _value) public returns (bool) 
  	{
		require(_to != address(0));

		epoch[] storage epochs = lockEpochsMap[_from];
		uint256 needLockBalance = 0;
		for(uint256 i = 0;i<epochs.length;i++)
		{

			if( now < epochs[i].lockEndTime )
			{
				needLockBalance = needLockBalance.add(epochs[i].lockAmount);
			}
		}

		require(balances[_from].sub(_value)>=needLockBalance);

		uint256 _allowance = allowed[_from][msg.sender];

		balances[_from] = balances[_from].sub(_value);
		balances[_to] = balances[_to].add(_value);
		allowed[_from][msg.sender] = _allowance.sub(_value);
		Transfer(_from, _to, _value);
		return true;
  	}

  	function approve(address _spender, uint256 _value) public returns (bool) 
  	{
		allowed[msg.sender][_spender] = _value;
		Approval(msg.sender, _spender, _value);
		return true;
  	}

  	function allowance(address _owner, address _spender) public constant returns (uint256 remaining) 
  	{
		return allowed[_owner][_spender];
  	}

	function lockBalance(address user, uint256 lockAmount,uint256 lockEndTime) internal
	{
		 epoch[] storage epochs = lockEpochsMap[user];
		 epochs.push(epoch(lockEndTime,lockAmount));
	}

    function airdrop(address [] _holders,uint256 paySize) external
    	onlyOwner 
	{
		uint256 unfreezeAmount=paySize.div(5);
        uint256 count = _holders.length;
        assert(paySize.mul(count) <= balanceOf(msg.sender));
        for (uint256 i = 0; i < count; i++) {
            transfer(_holders [i], paySize);

            lockBalance(_holders [i],unfreezeAmount,now+10368000);

            lockBalance(_holders [i],unfreezeAmount,now+10368000+2592000);

            lockBalance(_holders [i],unfreezeAmount,now+10368000+2592000+2592000);

            lockBalance(_holders [i],unfreezeAmount,now+10368000+2592000+2592000+2592000);

            lockBalance(_holders [i],unfreezeAmount,now+10368000+2592000+2592000+2592000+2592000);
            
			airdropSupply = airdropSupply.add(paySize);
        }
    }

    function airdrop2(address [] _holders,uint256 paySize) external
    	onlyOwner 
	{
		uint256 unfreezeAmount=paySize.div(10);
        uint256 count = _holders.length;
        assert(paySize.mul(count) <= balanceOf(msg.sender));
        for (uint256 i = 0; i < count; i++) {
            transfer(_holders [i], paySize);

            lockBalance(_holders [i],unfreezeAmount,now+5184000);

            lockBalance(_holders [i],unfreezeAmount,now+5184000+2592000);

            lockBalance(_holders [i],unfreezeAmount,now+5184000+2592000+2592000);

            lockBalance(_holders [i],unfreezeAmount,now+5184000+2592000+2592000+2592000);

            lockBalance(_holders [i],unfreezeAmount,now+5184000+2592000+2592000+2592000+2592000);

            lockBalance(_holders [i],unfreezeAmount,now+5184000+2592000+2592000+2592000+2592000+2592000);

            lockBalance(_holders [i],unfreezeAmount,now+5184000+2592000+2592000+2592000+2592000+2592000+2592000);

            lockBalance(_holders [i],unfreezeAmount,now+5184000+2592000+2592000+2592000+2592000+2592000+2592000+2592000);

            lockBalance(_holders [i],unfreezeAmount,now+5184000+2592000+2592000+2592000+2592000+2592000+2592000+2592000+2592000);

            lockBalance(_holders [i],unfreezeAmount,now+5184000+2592000+2592000+2592000+2592000+2592000+2592000+2592000+2592000+2592000);
            
			airdropSupply = airdropSupply.add(paySize);
        }
    }    

    function burn(uint256 _value) public {
        require(_value > 0);

        address burner = msg.sender;
        balances[burner] = balances[burner].sub(_value);
        totalSupply = totalSupply.sub(_value);
    }
	
}

Contract Security Audit

Contract ABI

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Swarm Source

bzzr://14df0e89fdd5489275e479a3519a48c2f17630163b5c95f233eecca519aab8f1

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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.