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Contract

0x02b3c88b805F1C6982E38eA1D40A1d83F159C3d4
 

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0 ETH

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$0.00

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Transfer96961912020-03-18 14:45:261745 days ago1584542726IN
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0 ETH0.000435211
Transfer96307812020-03-08 12:27:451755 days ago1583670465IN
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0 ETH0.000356299.00000123
Transfer94693892020-02-12 16:59:561780 days ago1581526796IN
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0 ETH0.0003958810
Transfer90644552019-12-07 5:09:111848 days ago1575695351IN
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0 ETH0.000276765.21875
Transfer90530282019-12-05 4:27:301850 days ago1575520050IN
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0 ETH0.0003803210
Transfer90424272019-12-03 7:21:381852 days ago1575357698IN
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0 ETH0.000190165
Transfer90309562019-12-01 6:11:121854 days ago1575180672IN
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0 ETH0.000150126.5
Transfer90134072019-11-28 3:45:241857 days ago1574912724IN
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0 ETH0.000138576
Transfer88019382019-10-24 8:27:471892 days ago1571905667IN
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0 ETH0.0006363812
Transfer87703382019-10-19 8:58:301897 days ago1571475510IN
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0 ETH0.0002303210
Transfer86823272019-10-05 13:22:291910 days ago1570281749IN
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0 ETH0.0006834218
Transfer85599262019-09-16 10:20:131930 days ago1568629213IN
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0 ETH0.0007619220
Transfer85353592019-09-12 14:04:231933 days ago1568297063IN
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0 ETH0.0012849224.2
Transfer84502352019-08-30 7:34:301947 days ago1567150470IN
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0 ETH0.0003040213.2
Transfer84501932019-08-30 7:26:091947 days ago1567149969IN
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0 ETH0.0012610323.80746137
Transfer84119702019-08-24 8:43:501953 days ago1566636230IN
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0 ETH0.0002296810
Transfer83516232019-08-14 23:34:101962 days ago1565825650IN
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0 ETH0.000264525
Transfer82723482019-08-02 16:33:471974 days ago1564763627IN
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0 ETH0.0005296810
Transfer82639782019-08-01 9:15:561976 days ago1564650956IN
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0 ETH0.0010593620
Transfer82639002019-08-01 8:56:281976 days ago1564649788IN
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0 ETH0.0010593620
Transfer82619792019-08-01 1:39:471976 days ago1564623587IN
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0 ETH0.000212124
Transfer82575882019-07-31 9:26:471977 days ago1564565207IN
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0 ETH0.0006098611.50000025
Transfer82574252019-07-31 8:48:301977 days ago1564562910IN
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0 ETH0.0005296810
Transfer82553912019-07-31 1:02:531977 days ago1564534973IN
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0 ETH0.0013809836.25
Transfer81745882019-07-18 12:08:521989 days ago1563451732IN
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0 ETH0.000025331.1
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Contract Source Code Verified (Exact Match)

Contract Name:
YUNCoinTokens

Compiler Version
v0.4.19+commit.c4cbbb05

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion
/**
 *Submitted for verification at Etherscan.io on 2019-03-16
*/

pragma solidity ^0.4.19;

contract owned {
    address public owner;

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

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

    function transferOwnership(address newOwner) onlyOwner public {
        owner = newOwner;
    }
}

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

contract TokenERC20 {
    // Public variables of the token
    string public name;
    string public symbol;
    uint8 public decimals = 8;
    // 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 TokenERC20(
        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;
    }
}

/******************************************/
/*       ADVANCED TOKEN STARTS HERE       */
/******************************************/

contract YUNCoinTokens is owned, TokenERC20 {

  
    event mylog(uint code);

    /* Initializes contract with initial supply tokens to the creator of the contract */
    function YUNCoinTokens (
        uint256 initialSupply,
        string tokenName,
        string tokenSymbol
    ) TokenERC20(initialSupply, tokenName, tokenSymbol) payable public {}

    function transfer(address _to, uint256 _value) public {
        _transfer(msg.sender, _to, _value);
    }

    /* Internal transfer, only can be called by this contract */
    function _transfer(address _from, address _to, uint256 _value) internal {
 
        require(_to != 0x0);                               // Prevent transfer to 0x0 address. Use burn() instead
        require(balanceOf[_from] >= _value);               // Check if the sender has enough
        require(balanceOf[_to] + _value > balanceOf[_to]); // Check for overflows
        balanceOf[_from] -= _value;                         // Subtract from the sender
        balanceOf[_to] += _value;                           // Add the same to the recipient
        Transfer(_from, _to, _value);
         mylog(0);
    }
}

Contract Security Audit

Contract ABI

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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)

000000000000000000000000000000000000000000000000000000003b9aca00000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000000a59756e20506c616e657400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000359554e0000000000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : initialSupply (uint256): 1000000000
Arg [1] : tokenName (string): Yun Planet
Arg [2] : tokenSymbol (string): YUN

-----Encoded View---------------
7 Constructor Arguments found :
Arg [0] : 000000000000000000000000000000000000000000000000000000003b9aca00
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [2] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [3] : 000000000000000000000000000000000000000000000000000000000000000a
Arg [4] : 59756e20506c616e657400000000000000000000000000000000000000000000
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [6] : 59554e0000000000000000000000000000000000000000000000000000000000


Swarm Source

bzzr://83d16b0cc583d4b5f3626a3b969e1a14e2bb81477f44a7466e4e0c900242f1cf

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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.