Feature Tip: Add private address tag to any address under My Name Tag !
Overview
Max Total Supply
1,409,664,846 OGN
Holders
46,410 ( 0.009%)
Market
Price
$0.14 @ 0.000035 ETH (-6.06%)
Onchain Market Cap
$190,602,193.49
Circulating Supply Market Cap
$93,162,554.00
Other Info
Token Contract (WITH 18 Decimals)
Balance
0.01 OGNValue
$0.00 ( ~0 Eth) [0.0000%]Loading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
---|---|---|---|---|---|
1 | Bibox | OGN-USDT | $0.1351 0.0000347 Eth | $2,217,836.00 16,421,536.000 OGN | 20.3078% |
2 | Binance | OGN-USDT | $0.1352 0.0000347 Eth | $2,013,171.00 14,640,280.000 OGN | 18.1050% |
3 | WhiteBIT | OGN-USDT | $0.1351 0.0000347 Eth | $1,585,695.00 11,740,511.510 OGN | 14.5190% |
4 | Nami.Exchange | OGN-VNST | $0.1357 0.0000349 Eth | $1,030,812.00 7,594,542.000 OGN | 9.3919% |
5 | Nami.Exchange | OGN-USDT | $0.135 0.0000347 Eth | $1,004,377.00 7,442,212.000 OGN | 9.2035% |
6 | Hotcoin | OGN-USDT | $0.1352 0.0000348 Eth | $687,722.00 5,088,392.000 OGN | 6.2926% |
7 | Coinbase Exchange | OGN-USD | $0.1351 0.0000347 Eth | $288,228.00 2,133,758.890 OGN | 2.6387% |
8 | Bitcointry | OGN-USDT | $0.1351 0.0000347 Eth | $234,069.00 1,699,257.000 OGN | 2.1014% |
9 | BtcTurk | Kripto | OGN-TRY | $0.136 0.0000350 Eth | $220,941.00 1,625,016.473 OGN | 2.0096% |
10 | Bitunix | OGN-USDT | $0.135 0.0000347 Eth | $157,263.00 1,165,248.000 OGN | 1.4410% |
11 | HTX | OGN-USDT | $0.1351 0.0000347 Eth | $145,915.00 1,057,672.497 OGN | 1.3080% |
12 | Uniswap V3 (Ethereum) | 0X8207C1FFC5B6804F6024322CCF34F29C3541AE26-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.1356 0.0000349 Eth | $140,952.00 1,013,472.427 0X8207C1FFC5B6804F6024322CCF34F29C3541AE26 | 1.2533% |
13 | Bitrue | OGN-USDC | $0.1477 0.0000378 Eth | $134,777.00 912,460.000 OGN | 1.1284% |
14 | Binance | OGN-TRY | $0.1362 0.0000351 Eth | $123,954.00 893,529.000 OGN | 1.1050% |
15 | CoinTR | OGN-TRY | $0.1359 0.0000349 Eth | $108,761.00 785,107.000 OGN | 0.9709% |
16 | Bitrue | OGN-USDT | $0.1351 0.0000347 Eth | $105,871.00 783,838.000 OGN | 0.9693% |
17 | KuCoin | OGN-USDT | $0.1351 0.0000347 Eth | $100,059.00 740,736.884 OGN | 0.9160% |
18 | Bitget | OGN-USDT | $0.1351 0.0000347 Eth | $99,855.00 721,841.105 OGN | 0.8927% |
19 | CoinCatch | OGN-USDT | $0.135 0.0000347 Eth | $99,235.00 719,175.673 OGN | 0.8894% |
20 | Gate.io | OGN-USDT | $0.1352 0.0000348 Eth | $87,830.00 636,792.120 OGN | 0.7875% |
21 | Aerodrome (Base) | 0XDBFEFD2E8460A6EE4955A68582F85708BAEA60A3-0X7002458B1DF59ECCB57387BC79FFC7C29E22E6F7 | $0.1356 0.0000349 Eth | $80,346.00 20.966 0XDBFEFD2E8460A6EE4955A68582F85708BAEA60A3 | 0.0000% |
22 | Paribu | OGN-TRY | $0.1371 0.0000353 Eth | $67,870.00 495,137.000 OGN | 0.6123% |
23 | Bilaxy | OGN-ETH | $0.1302 0.0000335 Eth | $67,678.00 519,690.000 OGN | 0.6427% |
24 | Tapbit | OGN-USDT | $0.1351 0.0000347 Eth | $66,205.00 480,335.000 OGN | 0.5940% |
25 | CoinTR | OGN-USDT | $0.1365 0.0000351 Eth | $58,879.00 426,745.000 OGN | 0.5277% |
26 | BingX | OGN-USDT | $0.135 0.0000347 Eth | $57,682.00 418,461.035 OGN | 0.5175% |
27 | Bithumb | OGN-KRW | $0.1351 0.0000347 Eth | $53,294.00 394,337.783 OGN | 0.4877% |
28 | BloFin | OGN-USDT | $0.1357 0.0000349 Eth | $36,854.00 267,345.000 OGN | 0.3306% |
29 | MEXC | OGN-USDT | $0.1351 0.0000347 Eth | $31,654.00 234,298.510 OGN | 0.2897% |
30 | Binance | OGN-BTC | $0.1357 0.0000349 Eth | $28,659.00 206,604.000 OGN | 0.2555% |
31 | Bitvavo | OGN-EUR | $0.1347 0.0000346 Eth | $22,291.00 165,462.124 OGN | 0.2046% |
32 | BtcTurk | Kripto | OGN-USDT | $0.1346 0.0000346 Eth | $16,923.39 125,776.861 OGN | 0.1555% |
33 | DeGate | 0X8207C1FFC5B6804F6024322CCF34F29C3541AE26-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48 | $0.1352 0.0000348 Eth | $13,537.10 98,468.890 0X8207C1FFC5B6804F6024322CCF34F29C3541AE26 | 0.1218% |
34 | Pionex | OGN-USDT | $0.1355 0.0000348 Eth | $13,340.42 96,916.510 OGN | 0.1199% |
35 | LATOKEN | OGN-BTC | $0.1357 0.0000349 Eth | $12,467.65 91,905.171 OGN | 0.1137% |
36 | Upbit | OGN-BTC | $0.1367 0.0000351 Eth | $11,790.81 86,267.949 OGN | 0.1067% |
37 | Kraken | OGN-USD | $0.1361 0.0000350 Eth | $11,080.77 81,416.361 OGN | 0.1007% |
38 | Upbit Indonesia | OGN-BTC | $0.1367 0.0000351 Eth | $10,983.49 80,357.745 OGN | 0.0994% |
39 | ProBit Global | OGN-BTC | $0.1357 0.0000349 Eth | $8,849.32 65,232.611 OGN | 0.0807% |
40 | LATOKEN | OGN-USDT | $0.1355 0.0000349 Eth | $6,678.66 49,273.130 OGN | 0.0609% |
41 | Kraken | OGN-EUR | $0.1361 0.0000350 Eth | $5,811.14 42,695.712 OGN | 0.0528% |
42 | Bit2Me | OGN-EUR | $0.1361 0.0000350 Eth | $5,750.93 42,253.397 OGN | 0.0523% |
43 | Tothemoon | OGN-USDT | $0.135 0.0000347 Eth | $4,135.13 30,640.000 OGN | 0.0379% |
44 | CoinEx | OGN-USDT | $0.135 0.0000347 Eth | $3,679.15 26,786.834 OGN | 0.0331% |
45 | WEEX | OGN-USDT | $0.1351 0.0000347 Eth | $2,746.89 20,187.000 OGN | 0.0250% |
46 | Crypto.com Exchange | OGN-USD | $0.1348 0.0000346 Eth | $1,456.73 10,809.000 OGN | 0.0134% |
47 | KuCoin | OGN-BTC | $0.1364 0.0000351 Eth | $1,233.80 9,047.173 OGN | 0.0112% |
48 | CoinJar Exchange | OGN-EUR | $0.129 0.0000355 Eth | $580.57 4,500.000 OGN | 0.0056% |
49 | Mudrex | OGN-USDT | $0.1351 0.0000347 Eth | $461.48 3,416.802 OGN | 0.0042% |
50 | Mercado Bitcoin | OGN-BRL | $0.1395 0.0000359 Eth | $453.68 3,251.813 OGN | 0.0040% |
51 | Pionex | OGN-BTC | $0.1346 0.0000346 Eth | $370.08 2,669.000 OGN | 0.0033% |
52 | Indodax | OGN-IDR | $0.1364 0.0000351 Eth | $306.46 2,246.582 OGN | 0.0028% |
53 | TokoCrypto | OGN-USDT | $0.1352 0.0000348 Eth | $235.52 1,742.517 OGN | 0.0022% |
54 | Coinone | OGN-KRW | $0.137 0.0000352 Eth | $166.54 1,215.375 OGN | 0.0015% |
55 | BitMart | OGN-USDT | $0.1439 0.0000370 Eth | $122.05 848.400 OGN | 0.0010% |
56 | Bittime | OGN-IDR | $0.1352 0.0000348 Eth | $121.62 882.500 OGN | 0.0011% |
57 | Binance US | OGN-USDT | $0.1302 0.0000335 Eth | $110.26 847.130 OGN | 0.0010% |
58 | Aerodrome (Base) | 0X7002458B1DF59ECCB57387BC79FFC7C29E22E6F7-0X4200000000000000000000000000000000000006 | $0.1359 0.0000350 Eth | $69.49 504.357 0X7002458B1DF59ECCB57387BC79FFC7C29E22E6F7 | 0.0006% |
59 | Gate.io | OGN-TRY | $0.1362 0.0000350 Eth | $62.38 454.389 OGN | 0.0006% |
60 | CoinJar Exchange | OGN-GBP | $0.1461 0.0000372 Eth | $58.44 400.000 OGN | 0.0005% |
61 | CoinDCX | OGN-INR | $0.1428 0.0000367 Eth | $50.65 0.000 OGN | 0.0000% |
62 | CEX.IO | OGN-USD | $0.1353 0.0000348 Eth | $49.87 361.129 OGN | 0.0004% |
63 | CoinJar Exchange | OGN-USD | $0.1483 0.0000399 Eth | $44.49 300.000 OGN | 0.0004% |
64 | Uniswap V2 (Ethereum) | 0X8207C1FFC5B6804F6024322CCF34F29C3541AE26-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2 | $0.1436 0.0000370 Eth | $28.71 200.000 0X8207C1FFC5B6804F6024322CCF34F29C3541AE26 | 0.0002% |
65 | CEX.IO | OGN-EUR | $0.1357 0.0000349 Eth | $26.48 194.940 OGN | 0.0002% |
66 | CEX.IO | OGN-USDT | $0.1352 0.0000348 Eth | $19.51 143.640 OGN | 0.0002% |
67 | CoinJar Exchange | OGN-USDC | $0.1436 0.0000368 Eth | $14.36 100.000 OGN | 0.0001% |
68 | CoinJar Exchange | OGN-AUD | $0.143 0.0000366 Eth | $14.30 100.000 OGN | 0.0001% |
69 | ProBit Global | OGN-USDT | $0.1485 0.0000382 Eth | $6.06 40.837 OGN | 0.0001% |
70 | Poloniex | OGN-USDT | $0.0639 0.0000164 Eth | $2.67 41.846 OGN | 0.0001% |
71 | HitBTC | OGN-USDT | $0.1201 0.0000308 Eth | $0.012 0.100 OGN | 0.0000% |
72 | FMFW.io | OGN-USDT | $0.1201 0.0000308 Eth | $0.012 0.100 OGN | 0.0000% |
73 | GoPax | OGN-KRW | $0.2181 0.0000561 Eth | $0.00 0.000 OGN | 0.0000% |
Contract Name:
OriginToken
Compiler Version
v0.4.24+commit.e67f0147
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2018-10-04 */ pragma solidity ^0.4.24; // produced by the Solididy File Flattener (c) David Appleton 2018 // contact : [email protected] // released under Apache 2.0 licence contract ERC20Basic { function totalSupply() public view returns (uint256); 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 Ownable { address public owner; event OwnershipRenounced(address indexed previousOwner); event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); /** * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. */ constructor() public { owner = msg.sender; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(msg.sender == owner); _; } /** * @dev Allows the current owner to relinquish control of the contract. */ function renounceOwnership() public onlyOwner { emit OwnershipRenounced(owner); owner = address(0); } /** * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param _newOwner The address to transfer ownership to. */ function transferOwnership(address _newOwner) public onlyOwner { _transferOwnership(_newOwner); } /** * @dev Transfers control of the contract to a newOwner. * @param _newOwner The address to transfer ownership to. */ function _transferOwnership(address _newOwner) internal { require(_newOwner != address(0)); emit OwnershipTransferred(owner, _newOwner); owner = _newOwner; } } library SafeMath { /** * @dev Multiplies two numbers, throws on overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256 c) { // Gas optimization: this is cheaper than asserting 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522 if (a == 0) { return 0; } c = a * b; assert(c / a == b); return c; } /** * @dev Integer division of two numbers, truncating the quotient. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 // uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return a / b; } /** * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend). */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } /** * @dev Adds two numbers, throws on overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256 c) { c = a + b; assert(c >= a); return c; } } 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 Pausable is Ownable { event Pause(); event Unpause(); bool public paused = false; /** * @dev Modifier to make a function callable only when the contract is not paused. */ modifier whenNotPaused() { require(!paused); _; } /** * @dev Modifier to make a function callable only when the contract is paused. */ modifier whenPaused() { require(paused); _; } /** * @dev called by the owner to pause, triggers stopped state */ function pause() onlyOwner whenNotPaused public { paused = true; emit Pause(); } /** * @dev called by the owner to unpause, returns to normal state */ function unpause() onlyOwner whenPaused public { paused = false; emit Unpause(); } } contract DetailedERC20 is ERC20 { string public name; string public symbol; uint8 public decimals; constructor(string _name, string _symbol, uint8 _decimals) public { name = _name; symbol = _symbol; decimals = _decimals; } } contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; uint256 totalSupply_; /** * @dev total number of tokens in existence */ function totalSupply() public view returns (uint256) { return totalSupply_; } /** * @dev transfer token for a specified address * @param _to The address to transfer to. * @param _value The amount to be transferred. */ function transfer(address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); emit Transfer(msg.sender, _to, _value); return true; } /** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint256 representing the amount owned by the passed address. */ function balanceOf(address _owner) public view returns (uint256) { return balances[_owner]; } } contract BurnableToken is BasicToken { event Burn(address indexed burner, uint256 value); /** * @dev Burns a specific amount of tokens. * @param _value The amount of token to be burned. */ function burn(uint256 _value) public { _burn(msg.sender, _value); } function _burn(address _who, uint256 _value) internal { require(_value <= balances[_who]); // no need to require value <= totalSupply, since that would imply the // sender's balance is greater than the totalSupply, which *should* be an assertion failure balances[_who] = balances[_who].sub(_value); totalSupply_ = totalSupply_.sub(_value); emit Burn(_who, _value); emit Transfer(_who, address(0), _value); } } contract StandardToken is ERC20, BasicToken { mapping (address => mapping (address => uint256)) internal allowed; /** * @dev Transfer tokens from one address to another * @param _from address The address which you want to send tokens from * @param _to address The address which you want to transfer to * @param _value uint256 the amount of tokens to be transferred */ function transferFrom( address _from, address _to, uint256 _value ) public returns (bool) { require(_to != address(0)); require(_value <= balances[_from]); require(_value <= allowed[_from][msg.sender]); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value); emit Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * * 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 * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) public returns (bool) { allowed[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender. * @param _owner address The address which owns the funds. * @param _spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance( address _owner, address _spender ) public view returns (uint256) { return allowed[_owner][_spender]; } /** * @dev Increase the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _addedValue The amount of tokens to increase the allowance by. */ function increaseApproval( address _spender, uint _addedValue ) public returns (bool) { allowed[msg.sender][_spender] = ( allowed[msg.sender][_spender].add(_addedValue)); emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } /** * @dev Decrease the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To decrement * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _subtractedValue The amount of tokens to decrease the allowance by. */ function decreaseApproval( address _spender, uint _subtractedValue ) public returns (bool) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } contract PausableToken is StandardToken, Pausable { function transfer( address _to, uint256 _value ) public whenNotPaused returns (bool) { return super.transfer(_to, _value); } function transferFrom( address _from, address _to, uint256 _value ) public whenNotPaused returns (bool) { return super.transferFrom(_from, _to, _value); } function approve( address _spender, uint256 _value ) public whenNotPaused returns (bool) { return super.approve(_spender, _value); } function increaseApproval( address _spender, uint _addedValue ) public whenNotPaused returns (bool success) { return super.increaseApproval(_spender, _addedValue); } function decreaseApproval( address _spender, uint _subtractedValue ) public whenNotPaused returns (bool success) { return super.decreaseApproval(_spender, _subtractedValue); } } contract MintableToken is StandardToken, Ownable { event Mint(address indexed to, uint256 amount); event MintFinished(); bool public mintingFinished = false; modifier canMint() { require(!mintingFinished); _; } modifier hasMintPermission() { require(msg.sender == owner); _; } /** * @dev Function to mint tokens * @param _to The address that will receive the minted tokens. * @param _amount The amount of tokens to mint. * @return A boolean that indicates if the operation was successful. */ function mint( address _to, uint256 _amount ) hasMintPermission canMint public returns (bool) { totalSupply_ = totalSupply_.add(_amount); balances[_to] = balances[_to].add(_amount); emit Mint(_to, _amount); emit Transfer(address(0), _to, _amount); return true; } /** * @dev Function to stop minting new tokens. * @return True if the operation was successful. */ function finishMinting() onlyOwner canMint public returns (bool) { mintingFinished = true; emit MintFinished(); return true; } } contract WhitelistedPausableToken is PausableToken { // UNIX timestamp (in seconds) after which this whitelist no longer applies uint256 public whitelistExpiration; // While the whitelist is active, either the sender or recipient must be // in allowedTransactors. mapping (address => bool) public allowedTransactors; event SetWhitelistExpiration(uint256 expiration); event AllowedTransactorAdded(address sender); event AllowedTransactorRemoved(address sender); // // Functions for maintaining whitelist // modifier allowedTransfer(address _from, address _to) { require( // solium-disable-next-line operator-whitespace !whitelistActive() || allowedTransactors[_from] || allowedTransactors[_to], "neither sender nor recipient are allowed" ); _; } function whitelistActive() public view returns (bool) { return block.timestamp < whitelistExpiration; } function addAllowedTransactor(address _transactor) public onlyOwner { emit AllowedTransactorAdded(_transactor); allowedTransactors[_transactor] = true; } function removeAllowedTransactor(address _transactor) public onlyOwner { emit AllowedTransactorRemoved(_transactor); delete allowedTransactors[_transactor]; } /** * @dev Set the whitelist expiration, after which the whitelist no longer * applies. */ function setWhitelistExpiration(uint256 _expiration) public onlyOwner { // allow only if whitelist expiration hasn't yet been set, or if the // whitelist expiration hasn't passed yet require( whitelistExpiration == 0 || whitelistActive(), "an expired whitelist cannot be extended" ); // prevent possible mistakes in calling this function require( _expiration >= block.timestamp + 1 days, "whitelist expiration not far enough into the future" ); emit SetWhitelistExpiration(_expiration); whitelistExpiration = _expiration; } // // ERC20 transfer functions that have been overridden to enforce the // whitelist. // function transfer( address _to, uint256 _value ) public allowedTransfer(msg.sender, _to) returns (bool) { return super.transfer(_to, _value); } function transferFrom( address _from, address _to, uint256 _value ) public allowedTransfer(_from, _to) returns (bool) { return super.transferFrom(_from, _to, _value); } } contract OriginToken is BurnableToken, MintableToken, WhitelistedPausableToken, DetailedERC20 { event AddCallSpenderWhitelist(address enabler, address spender); event RemoveCallSpenderWhitelist(address disabler, address spender); mapping (address => bool) public callSpenderWhitelist; // @dev Constructor that gives msg.sender all initial tokens. constructor(uint256 _initialSupply) DetailedERC20("OriginToken", "OGN", 18) public { owner = msg.sender; mint(owner, _initialSupply); } // // Burn methods // // @dev Burns tokens belonging to the sender // @param _value Amount of token to be burned function burn(uint256 _value) public onlyOwner { // TODO: add a function & modifier to enable for all accounts without doing // a contract migration? super.burn(_value); } // @dev Burns tokens belonging to the specified address // @param _who The account whose tokens we're burning // @param _value Amount of token to be burned function burn(address _who, uint256 _value) public onlyOwner { _burn(_who, _value); } // // approveAndCall methods // // @dev Add spender to whitelist of spenders for approveAndCall // @param _spender Address to add function addCallSpenderWhitelist(address _spender) public onlyOwner { callSpenderWhitelist[_spender] = true; emit AddCallSpenderWhitelist(msg.sender, _spender); } // @dev Remove spender from whitelist of spenders for approveAndCall // @param _spender Address to remove function removeCallSpenderWhitelist(address _spender) public onlyOwner { delete callSpenderWhitelist[_spender]; emit RemoveCallSpenderWhitelist(msg.sender, _spender); } // @dev Approve transfer of tokens and make a contract call in a single // @dev transaction. This allows a DApp to avoid requiring two MetaMask // @dev approvals for a single logical action, such as creating a listing, // @dev which requires the seller to approve a token transfer and the // @dev marketplace contract to transfer tokens from the seller. // // @dev This is based on the ERC827 function approveAndCall and avoids // @dev security issues by only working with a whitelisted set of _spender // @dev addresses. The other difference is that the combination of this // @dev function ensures that the proxied function call receives the // @dev msg.sender for this function as its first parameter. // // @param _spender The address that will spend the funds. // @param _value The amount of tokens to be spent. // @param _selector Function selector for function to be called. // @param _callParams Packed, encoded parameters, omitting the first parameter which is always msg.sender function approveAndCallWithSender( address _spender, uint256 _value, bytes4 _selector, bytes _callParams ) public payable returns (bool) { require(_spender != address(this), "token contract can't be approved"); require(callSpenderWhitelist[_spender], "spender not in whitelist"); require(super.approve(_spender, _value), "approve failed"); bytes memory callData = abi.encodePacked(_selector, uint256(msg.sender), _callParams); // solium-disable-next-line security/no-call-value require(_spender.call.value(msg.value)(callData), "proxied call failed"); return true; } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000000000000000000000033b2e3c9fd0803ce8000000
-----Decoded View---------------
Arg [0] : _initialSupply (uint256): 1000000000000000000000000000
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000033b2e3c9fd0803ce8000000
Swarm Source
bzzr://a1f23bff07bb597b5589c638de2919d4ce0fbc00cabdca1bde3ce5d034fde43a
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