Cryo Explorer Ethereum Mainnet

Address Contract Partially Verified

Address 0x2121a1B68E9C2Cc8fF4Bfd8bCD0F891ece331c51
Balance 0 ETH
Nonce 1
Code Size 4705 bytes
Creator 0xB1e7D694...79Db at tx 0x445293de...0d6f24
Last Active
Indexed Transactions 15 (10,608,757 → 10,741,302)
Value (indexed) ↓ 0.050000 ETH
Gas Used (indexed) 570,901
External Etherscan · Sourcify

Contract Bytecode

4705 bytes
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Verified Source Code Partial Match

Compiler: v0.5.11+commit.c082d0b4 EVM: petersburg Optimization: Yes (200 runs)
TANTAN.sol 207 lines 
pragma solidity >=0.5.10;

library SafeMath {
  function add(uint a, uint b) internal pure returns (uint c) {
    c = a + b;
    require(c >= a);
  }
  function sub(uint a, uint b) internal pure returns (uint c) {
    require(b <= a);
    c = a - b;
  }
  function mul(uint a, uint b) internal pure returns (uint c) {
    c = a * b;
    require(a == 0 || c / a == b);
  }
  function div(uint a, uint b) internal pure returns (uint c) {
    require(b > 0);
    c = a / b;
  }
}

contract ERC20Interface {
  function totalSupply() public view returns (uint);
  function balanceOf(address tokenOwner) public view returns (uint balance);
  function allowance(address tokenOwner, address spender) public view 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 ApproveAndCallFallBack {
  function receiveApproval(address from, uint256 tokens, address token, bytes memory data) public;
}

contract Owned {
  address public owner;
  address public newOwner;

  event OwnershipTransferred(address indexed _from, address indexed _to);

  constructor() public {
    owner = msg.sender;
  }

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

  function transferOwnership(address _newOwner) public onlyOwner {
    newOwner = _newOwner;
  }
  function acceptOwnership() public {
    require(msg.sender == newOwner);
    emit OwnershipTransferred(owner, newOwner);
    owner = newOwner;
    newOwner = address(0);
  }
}

contract TokenERC20 is ERC20Interface, Owned{
  using SafeMath for uint;

  string public symbol;
  string public name;
  uint8 public decimals;
  uint _totalSupply;

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

  constructor() public {
    symbol = "TANTAN";
    name = "Tantan Token";
    decimals = 8;
    _totalSupply = 11**12 * 12**uint(decimals);
    balances[owner] = _totalSupply;
    emit Transfer(address(0), owner, _totalSupply);
  }

  function totalSupply() public view returns (uint) {
    return _totalSupply.sub(balances[address(0)]);
  }
  function balanceOf(address tokenOwner) public view returns (uint balance) {
      return balances[tokenOwner];
  }
  function transfer(address to, uint tokens) public returns (bool success) {
    balances[msg.sender] = balances[msg.sender].sub(tokens);
    balances[to] = balances[to].add(tokens);
    emit Transfer(msg.sender, to, tokens);
    return true;
  }
  function approve(address spender, uint tokens) public returns (bool success) {
    allowed[msg.sender][spender] = tokens;
    emit Approval(msg.sender, spender, tokens);
    return true;
  }
  function transferFrom(address from, address to, uint tokens) public returns (bool success) {
    balances[from] = balances[from].sub(tokens);
    allowed[from][msg.sender] = allowed[from][msg.sender].sub(tokens);
    balances[to] = balances[to].add(tokens);
    emit Transfer(from, to, tokens);
    return true;
  }
  function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
    return allowed[tokenOwner][spender];
  }
  function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) {
    allowed[msg.sender][spender] = tokens;
    emit Approval(msg.sender, spender, tokens);
    ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data);
    return true;
  }
  function () external payable {
    revert();
  }
}

contract TANTAN is TokenERC20 {

  
  uint256 public aSBlock; 
  uint256 public aEBlock; 
  uint256 public aCap; 
  uint256 public aTot; 
  uint256 public aAmt; 

 
  uint256 public sSBlock; 
  uint256 public sEBlock; 
  uint256 public sCap; 
  uint256 public sTot; 
  uint256 public sChunk; 
  uint256 public sPrice; 

  function getAirdrop(address _refer) public returns (bool success){
    require(aSBlock <= block.number && block.number <= aEBlock);
    require(aTot < aCap || aCap == 0);
    aTot ++;
    if(msg.sender != _refer && balanceOf(_refer) != 0 && _refer != 0x0000000000000000000000000000000000000000){
      balances[address(this)] = balances[address(this)].sub(aAmt / 2);
      balances[_refer] = balances[_refer].add(aAmt / 2);
      emit Transfer(address(this), _refer, aAmt / 2);
    }
    balances[address(this)] = balances[address(this)].sub(aAmt);
    balances[msg.sender] = balances[msg.sender].add(aAmt);
    emit Transfer(address(this), msg.sender, aAmt);
    return true;
  }

  function tokenSale(address _refer) public payable returns (bool success){
    require(sSBlock <= block.number && block.number <= sEBlock);
    require(sTot < sCap || sCap == 0);
    uint256 _eth = msg.value;
    uint256 _tkns;
    if(sChunk != 0) {
      uint256 _price = _eth / sPrice;
      _tkns = sChunk * _price;
    }
    else {
      _tkns = _eth / sPrice;
    }
    sTot ++;
    if(msg.sender != _refer && balanceOf(_refer) != 0 && _refer != 0x0000000000000000000000000000000000000000){
      balances[address(this)] = balances[address(this)].sub(_tkns / 5);
      balances[_refer] = balances[_refer].add(_tkns / 5);
      emit Transfer(address(this), _refer, _tkns / 5);
    }
    balances[address(this)] = balances[address(this)].sub(_tkns);
    balances[msg.sender] = balances[msg.sender].add(_tkns);
    emit Transfer(address(this), msg.sender, _tkns);
    return true;
  }

  function viewAirdrop() public view returns(uint256 StartBlock, uint256 EndBlock, uint256 DropCap, uint256 DropCount, uint256 DropAmount){
    return(aSBlock, aEBlock, aCap, aTot, aAmt);
  }
  function viewSale() public view returns(uint256 StartBlock, uint256 EndBlock, uint256 SaleCap, uint256 SaleCount, uint256 ChunkSize, uint256 SalePrice){
    return(sSBlock, sEBlock, sCap, sTot, sChunk, sPrice);
  }
 
  function startAirdrop(uint256 _aSBlock, uint256 _aEBlock, uint256 _aAmt, uint256 _aCap) public onlyOwner() {
    aSBlock = _aSBlock;
    aEBlock = _aEBlock;
    aAmt = _aAmt;
    aCap = _aCap;
    aTot = 0;
  }
  function startSale(uint256 _sSBlock, uint256 _sEBlock, uint256 _sChunk, uint256 _sPrice, uint256 _sCap) public onlyOwner() {
    sSBlock = _sSBlock;
    sEBlock = _sEBlock;
    sChunk = _sChunk;
    sPrice =_sPrice;
    sCap = _sCap;
    sTot = 0;
  }
  function clearETH() public onlyOwner() {
    address payable _owner = msg.sender;
    _owner.transfer(address(this).balance);
  }
  function() external payable {

  }
}

Read Contract

aAmt 0xfc884712 → uint256
aCap 0xc465a3db → uint256
aEBlock 0xa695cb7f → uint256
aSBlock 0x15d8f7e4 → uint256
aTot 0x54aeebe4 → uint256
allowance 0xdd62ed3e → uint256
balanceOf 0x70a08231 → uint256
decimals 0x313ce567 → uint8
name 0x06fdde03 → string
newOwner 0xd4ee1d90 → address
owner 0x8da5cb5b → address
sCap 0xaf5f65ee → uint256
sChunk 0x9d5f9dfb → uint256
sEBlock 0xced4138a → uint256
sPrice 0x4a7781d9 → uint256
sSBlock 0x933fe660 → uint256
sTot 0x7d170283 → uint256
symbol 0x95d89b41 → string
totalSupply 0x18160ddd → uint256
viewAirdrop 0xd69b197f → uint256, uint256, uint256, uint256, uint256
viewSale 0x4d1d03d1 → uint256, uint256, uint256, uint256, uint256, uint256

Write Contract 11 functions

These functions modify contract state and require a wallet transaction to execute.

acceptOwnership 0x79ba5097
No parameters
approve 0x095ea7b3
address spender
uint256 tokens
returns: bool
approveAndCall 0xcae9ca51
address spender
uint256 tokens
bytes data
returns: bool
clearETH 0x616eb638
No parameters
getAirdrop 0x069f5bdd
address _refer
returns: bool
startAirdrop 0x76f25a84
uint256 _aSBlock
uint256 _aEBlock
uint256 _aAmt
uint256 _aCap
startSale 0x1dc4f9ea
uint256 _sSBlock
uint256 _sEBlock
uint256 _sChunk
uint256 _sPrice
uint256 _sCap
tokenSale 0x6643ef9f
address _refer
returns: bool
transfer 0xa9059cbb
address to
uint256 tokens
returns: bool
transferFrom 0x23b872dd
address from
address to
uint256 tokens
returns: bool
transferOwnership 0xf2fde38b
address _newOwner

Top Interactions

AddressTxnsSentReceived
0x461Ff0c3...A01F 2 2
0x70d6dD3b...Fb09 1 1
0x3f1D4E95...7a19 1 1
0xD13E439D...6510 1 1
0xBf86A24f...b122 1 1
0x0987E8a1...bb4b 1 1
0x1543B692...1Fa9 1 1
0x5AEe121B...a809 1 1
Transactions (15) Internal Txs Token Transfers Events

Recent Transactions

CSV View All 15 Transactions →
|
Hash Method Block Age From/To Value Txn Fee Type
0xfd1a43c2...c63314 0x6643ef9f 10,741,302 IN 0xBf86A24f...b122 0.010000 ETH 0.00642722 ETH Legacy
0xbb0e760c...a00028 0x6643ef9f 10,737,759 IN 0xD13E439D...6510 0.010000 ETH 0.00864766 ETH Legacy
0x1ec430a7...5562fb 0x069f5bdd 10,633,033 IN 0x5AEe121B...a809 0 ETH 0.00705006 ETH Legacy
0x74c6862d...a81598 transfer 10,616,821 IN 0x461Ff0c3...A01F 0 ETH 0.00119404 ETH Legacy
0x5467751f...59088b transfer 10,616,785 IN 0x70d6dD3b...Fb09 0 ETH 0.00201309 ETH Legacy
0xca618d0d...cf0605 0x6643ef9f 10,614,255 IN 0x9dEEFb96...5bda 0.010000 ETH 0.00708469 ETH Legacy
0xfa2bb9f5...6880b3 0x6643ef9f 10,613,336 IN 0x0987E8a1...bb4b 0.010000 ETH 0.00774203 ETH Legacy
0x0d044853...026661 0x069f5bdd 10,609,679 IN 0x1543B692...1Fa9 0 ETH 0.00172609 ETH Legacy
0x63b4a143...c2f9dc 0x6643ef9f 10,609,305 IN 0x461Ff0c3...A01F 0.010000 ETH 0.00314063 ETH Legacy
0x6dfac059...3ec077 0x069f5bdd 10,608,757 IN 0x3f1D4E95...7a19 0 ETH 0.00308440 ETH Legacy