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Contract

0xE4ba27aebAA3D09b2AC68b0c070A4d37cCC65cb7
 

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0 ETH

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$0.00

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TokenTracker

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Transaction Hash
Method
Block
From
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Transfer57747572018-06-12 7:41:392836 days ago1528789299IN
0xE4ba27ae...7cCC65cb7
0 ETH0.0004167211
Transfer57135842018-06-01 11:17:362846 days ago1527851856IN
0xE4ba27ae...7cCC65cb7
0 ETH0.0010576820
Transfer57135372018-06-01 11:05:092846 days ago1527851109IN
0xE4ba27ae...7cCC65cb7
0 ETH0.000947125
Transfer56155792018-05-15 2:54:252864 days ago1526352865IN
0xE4ba27ae...7cCC65cb7
0 ETH0.000375477.10000025
Transfer56155682018-05-15 2:50:482864 days ago1526352648IN
0xE4ba27ae...7cCC65cb7
0 ETH0.0005288410
Transfer54605082018-04-18 3:40:482891 days ago1524022848IN
0xE4ba27ae...7cCC65cb7
0 ETH0.000024221
Transfer54604892018-04-18 3:35:472891 days ago1524022547IN
0xE4ba27ae...7cCC65cb7
0 ETH0.000024221
Transfer54604782018-04-18 3:31:582891 days ago1524022318IN
0xE4ba27ae...7cCC65cb7
0 ETH0.000024221
Transfer54581002018-04-17 18:01:412891 days ago1523988101IN
0xE4ba27ae...7cCC65cb7
0 ETH0.000037941
Transfer53409882018-03-29 4:26:332911 days ago1522297593IN
0xE4ba27ae...7cCC65cb7
0 ETH0.0015558641
Transfer53303122018-03-27 9:10:362913 days ago1522141836IN
0xE4ba27ae...7cCC65cb7
0 ETH0.000040761.78125
Transfer53251682018-03-26 12:20:112913 days ago1522066811IN
0xE4ba27ae...7cCC65cb7
0 ETH0.000151534
Transfer52935022018-03-21 5:44:302919 days ago1521611070IN
0xE4ba27ae...7cCC65cb7
0 ETH0.000211534
Transfer52934922018-03-21 5:42:352919 days ago1521610955IN
0xE4ba27ae...7cCC65cb7
0 ETH0.001111921
Transfer47639472017-12-20 5:57:273010 days ago1513749447IN
0xE4ba27ae...7cCC65cb7
0 ETH0.0017896433.8
Transfer47415842017-12-16 8:09:113014 days ago1513411751IN
0xE4ba27ae...7cCC65cb7
0 ETH0.001111921
Transfer47401242017-12-16 1:52:073014 days ago1513389127IN
0xE4ba27ae...7cCC65cb7
0 ETH0.0015179240

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Contract Source Code Verified (Exact Match)

Contract Name:
PassPay

Compiler Version
v0.4.18+commit.9cf6e910

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
/**
 *Submitted for verification at Etherscan.io on 2017-12-15
*/

pragma solidity ^0.4.16;

interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) public; }

contract PassPay {
    // Public variables of the token
    string public name;
    string public symbol;
    uint8 public decimals = 18;
    // 18 decimals is the strongly suggested default, avoid changing it
    uint256 public totalSupply;

    // This creates an array with all balances
    mapping (address => uint256) public balanceOf;
    mapping (address => mapping (address => uint256)) public allowance;

    // This generates a public event on the blockchain that will notify clients
    event Transfer(address indexed from, address indexed to, uint256 value);

    // This notifies clients about the amount burnt
    event Burn(address indexed from, uint256 value);

    /**
     * Constrctor function
     *
     * Initializes contract with initial supply tokens to the creator of the contract
     */
    function PassPay(
        uint256 initialSupply,
        string tokenName,
        string tokenSymbol
    ) public {
        totalSupply = initialSupply * 10 ** uint256(decimals);  // Update total supply with the decimal amount
        balanceOf[msg.sender] = totalSupply;                // Give the creator all initial tokens
        name = tokenName;                                   // Set the name for display purposes
        symbol = tokenSymbol;                               // Set the symbol for display purposes
    }

    /**
     * Internal transfer, only can be called by this contract
     */
    function _transfer(address _from, address _to, uint _value) internal {
        // Prevent transfer to 0x0 address. Use burn() instead
        require(_to != 0x0);
        // Check if the sender has enough
        require(balanceOf[_from] >= _value);
        // Check for overflows
        require(balanceOf[_to] + _value > balanceOf[_to]);
        // Save this for an assertion in the future
        uint previousBalances = balanceOf[_from] + balanceOf[_to];
        // Subtract from the sender
        balanceOf[_from] -= _value;
        // Add the same to the recipient
        balanceOf[_to] += _value;
        Transfer(_from, _to, _value);
        // Asserts are used to use static analysis to find bugs in your code. They should never fail
        assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
    }

    /**
     * Transfer tokens
     *
     * Send `_value` tokens to `_to` from your account
     *
     * @param _to The address of the recipient
     * @param _value the amount to send
     */
    function transfer(address _to, uint256 _value) public {
        _transfer(msg.sender, _to, _value);
    }

    /**
     * Transfer tokens from other address
     *
     * Send `_value` tokens to `_to` in behalf of `_from`
     *
     * @param _from The address of the sender
     * @param _to The address of the recipient
     * @param _value the amount to send
     */
    function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
        require(_value <= allowance[_from][msg.sender]);     // Check allowance
        allowance[_from][msg.sender] -= _value;
        _transfer(_from, _to, _value);
        return true;
    }

    /**
     * Set allowance for other address
     *
     * Allows `_spender` to spend no more than `_value` tokens in your behalf
     *
     * @param _spender The address authorized to spend
     * @param _value the max amount they can spend
     */
    function approve(address _spender, uint256 _value) public
        returns (bool success) {
        allowance[msg.sender][_spender] = _value;
        return true;
    }

    /**
     * Set allowance for other address and notify
     *
     * Allows `_spender` to spend no more than `_value` tokens in your behalf, and then ping the contract about it
     *
     * @param _spender The address authorized to spend
     * @param _value the max amount they can spend
     * @param _extraData some extra information to send to the approved contract
     */
    function approveAndCall(address _spender, uint256 _value, bytes _extraData)
        public
        returns (bool success) {
        tokenRecipient spender = tokenRecipient(_spender);
        if (approve(_spender, _value)) {
            spender.receiveApproval(msg.sender, _value, this, _extraData);
            return true;
        }
    }

    /**
     * Destroy tokens
     *
     * Remove `_value` tokens from the system irreversibly
     *
     * @param _value the amount of money to burn
     */
    function burn(uint256 _value) public returns (bool success) {
        require(balanceOf[msg.sender] >= _value);   // Check if the sender has enough
        balanceOf[msg.sender] -= _value;            // Subtract from the sender
        totalSupply -= _value;                      // Updates totalSupply
        Burn(msg.sender, _value);
        return true;
    }

    /**
     * Destroy tokens from other account
     *
     * Remove `_value` tokens from the system irreversibly on behalf of `_from`.
     *
     * @param _from the address of the sender
     * @param _value the amount of money to burn
     */
    function burnFrom(address _from, uint256 _value) public returns (bool success) {
        require(balanceOf[_from] >= _value);                // Check if the targeted balance is enough
        require(_value <= allowance[_from][msg.sender]);    // Check allowance
        balanceOf[_from] -= _value;                         // Subtract from the targeted balance
        allowance[_from][msg.sender] -= _value;             // Subtract from the sender's allowance
        totalSupply -= _value;                              // Update totalSupply
        Burn(_from, _value);
        return true;
    }
}

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":"_value","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":"_value","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":false,"inputs":[{"name":"_value","type":"uint256"}],"name":"burn","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_value","type":"uint256"}],"name":"burnFrom","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"},{"name":"_extraData","type":"bytes"}],"name":"approveAndCall","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"},{"name":"","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"initialSupply","type":"uint256"},{"name":"tokenName","type":"string"},{"name":"tokenSymbol","type":"string"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Burn","type":"event"}]

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Deployed Bytecode

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

Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

0000000000000000000000000000000000000000000000000000000014dc9380000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000007506173735061790000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000035041500000000000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : initialSupply (uint256): 350000000
Arg [1] : tokenName (string): PassPay
Arg [2] : tokenSymbol (string): PAP

-----Encoded View---------------
7 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000014dc9380
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [2] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [4] : 5061737350617900000000000000000000000000000000000000000000000000
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [6] : 5041500000000000000000000000000000000000000000000000000000000000


Swarm Source

bzzr://0bb5698afb2eeb9bee90a749b82ec9ff131ce6efd96c6f0309cd40675e1afa8e

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.