Latest 25 txns From a total of 63130 Transactions

TxHash Age From To Value [TxFee]
0x00870d94e8d2167b5d47f9be402653057540fa6acbe57c9f20c1f6790f7d0fb211 mins ago0x04f0f78cb7871188f5f56ce041fecc53152a60a0  IN   OysterPearlToken0 Ether0.000095848
0x80fdbfbab94cf660fdbfcdc65bab1364ffe602deb0218ca5f822cab2a6d60cf036 mins ago0xd5a5a4c938de103593c4b4ed65087da16d3544f6  IN   OysterPearlToken0 Ether0.000143772
0x8822b6057599986843e8ac12ecb2b47486a79412b92fa87f32474a7eb2178ce943 mins ago0xf7388ed5274a94fbfaaefd700d0043fb9dfe2d4d  IN   OysterPearlToken0 Ether0.00386991
0xb42ef750abc0b4e4af20934facd4540a0c068ba81a30f566e46cbcea902dab3c49 mins agoKucoin  IN   OysterPearlToken0 Ether0.00058539
0xd1957a42ca40e4350fe1225e34d48cf4a324aee22afacac424fb817db4c964b91 hr 5 mins ago0xe7d12dfcf501a012a65e8aa72db6fd473b6a52a6  IN   OysterPearlToken0 Ether0.00011981
0x8c31d7346f538125cdb9e8730e3733ac6c2d1458dd071d4be62732cf29e694671 hr 24 mins ago0x79f2a3c3bf3b9174fc647ed46c925cf0446b8ca2  IN   OysterPearlToken0 Ether0.00023962
0xbdda5e8fdf31e3c9403880619138f9f7663438150aac4862701958a8201c35612 hrs 2 mins ago0x34ce04413a6ae40b182c3f8e0a52c3629f8919b5  IN   OysterPearlToken0 Ether0.000819546
0x1ecd35a248147f15a9d5dae5981fc5b1088d11012b1fe15d81bd75d4b0a4575b2 hrs 15 mins ago0xd15d68f25a2438aedcc39fe4d2797843839d35d9  IN   OysterPearlToken0 Ether0.00012013
0x9d20262ad4021ac106714ea147e194e17bab3e37494e85a7925174afd681b17f3 hrs 5 mins ago0x8c43730fc79131f21799fec731168345703a4a5d  IN   OysterPearlToken0 Ether0.00134905
0xadbfc4c767356689146352af968b4ec21f04364db6412364127ac7c5e5064e5f5 hrs 27 mins ago0x36f790c8b076218a1d075b0f5e2d5a43de2e5dc1  IN   OysterPearlToken0 Ether0.001597442
0x14bacf3614ddac6e93b49b302f5294358376c67d14400892d509f8ea163b18876 hrs 15 mins agoKucoin  IN   OysterPearlToken0 Ether0.00058539
0xa1b7b59005cb380b83f911e6157bb6ff3bd43a3f11522bacbff70dbdc483fe336 hrs 56 mins ago0x0e90c82cf75d65a4008ef6c0a7a1916a47505c45  IN   OysterPearlToken0 Ether0.00019272
0x95c827871570497c53ed04fb66d66811208e1929c31521ee00d8b54d66bc4a1b7 hrs 49 mins ago0x9df42257ec78ec95cf20a0b49446618a6d324798  IN   OysterPearlToken0 Ether0.0001469024
0x34e5ed48084778e53caeb4d0bf9b2f1c8c5c3c8e2e0155153ecf1d609d42bdc57 hrs 58 mins agoKucoin  IN   OysterPearlToken0 Ether0.00058443
0xc3cd1c5809eb4408c9d7c303a1d561b5bf13fb1ba9f2627f7eb050566f5036318 hrs 53 mins ago0xc26cb3d20fb46cf5a680418fdbc40554fd5a0c40  IN   OysterPearlToken0 Ether0.000071886
0x7db036a9a81a7dade98d6995a6a1c939a44af378b7c74092a652f4a30cb191ff9 hrs 23 mins agoKucoin  IN   OysterPearlToken0 Ether0.00081039
0x6f74e99229693eabbf183cc8a24b40006a27e9b817ec81a44956544b1fb94dbb10 hrs 18 mins agoKucoin  IN   OysterPearlToken0 Ether0.00058443
0xe86d94954a2df3eeecbbf721167db19423534d590e6877cb7e9626e686e2091610 hrs 28 mins ago0xa9250eb9cc642f347685eae416a59678fb8ba63e  IN   OysterPearlToken0 Ether0.001600066
0xdcc2a04bc5d8b3cba7ac8f3ad59fe1ff23402d5807aeb0fb3a98bfdd0b7860e211 hrs 39 mins agoKucoin  IN   OysterPearlToken0 Ether0.00058443
0xd8ed1083eccccced7fbd16ebe53b4fb0946b8856f8b2c7df936c9fdab77dc34611 hrs 41 mins ago0x72f8e95bfa5951734d3900a625ffd94abb8d04d7  IN   OysterPearlToken0 Ether0.0000527164
0x98241d2ed1063ec6a1e43dfd778fb4aac31a98097fd032f90847f2d2f80b3f3112 hrs 49 mins agoKucoin  IN   OysterPearlToken0 Ether0.00081135
0xbdd5c7b550e7d32af765cf2f1b48f8b4f754cdbcb5c4378c33417bbb62b3d24412 hrs 57 mins agoCoss.io  IN   OysterPearlToken0 Ether0.00054026
0xc044adc75ee3f9736128fa32ab4038d55e8dd106c83d75be3a33c11d6c2e810513 hrs 8 mins ago0xc2e47dc9b04a60dbe90ba4a381f6c7ae731814d8  IN   OysterPearlToken0 Ether0.0000576624
0x537c9138b4229b876a70b29320cb31ac37ed3107085968cbcb56e64e83102d9613 hrs 24 mins ago0x9096410692868ea33f77ff1ca3ae3d9948faf82c  IN   OysterPearlToken0 Ether0.00015636
0x59b58c5b3037a439d34a20e2bf630bcf11f4813ed662a7dbadb914ca68f6ce6013 hrs 29 mins ago0xb335d18843137b21db0c9ebc23e7ed9f0d33f14d  IN   OysterPearlToken0 Ether0.00018414
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 Internal Transactions as a result of Contract Execution
 Latest 25 Internal Txns, Click Here To View More View All
ParentTxHash Block Age From To Value
0x86bd1ed3d3e0d8bfe8b297ad4879d147c6857e1edaba89067ea2fb7be69987bd4651421326 days 19 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722653.52202719 Ether
0x1df4d1a5854af3c344193a4b2ea8a86a8e9c1e3ec5366b8797c0f5ee3e750b184630149330 days 7 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722650.5 Ether
0xf40e68d1ed7b763a9d51b9d61933b869193ab6b2140379a2d5c67799c2f7db7b4622589331 days 12 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722650.35 Ether
0x978d123f74477a47328a74cbb9db298871b65ba74ab545a39cd514e779005fd84614152332 days 21 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722652.247241 Ether
0x98a3f36758be019f4cf2bbf424b9bd3e5c679ab494c2449386bfc934141e75044603874334 days 13 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722650.02 Ether
0x9b4458245210a58cdebc4a01f4ea57db9378df45db88fc469a81e1dc21a42dff4576140339 days 6 mins ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722650.01 Ether
0xf7d4b837c4ba6635bcd627c6f9254ba19b693fc5bee5d24dcfda9d9f359279d74557079342 days 1 hr ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722650.05 Ether
0x5a6c1e97e5b6c27d84aa50169978aef4165fc150ba489aff581b79455af529224553472342 days 15 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722655.4 Ether
0x5da187864b8d28113b7da6d09b578ccd909a71332db0e2ebede2d8e60126e6754553245342 days 16 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce429907226544 Ether
0x27889843dc9b044fbff6529519a66030d8a69920d9d8d4861295481892dac2cb4552940342 days 17 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722652.0006555 Ether
0x46e2514443d8c80ecba130134162fcd0a8789630092e7a02e806db1bf3eb20294550109343 days 4 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722656.50649568 Ether
0xa4b7f589d8e7b2ff59dfc66277fefbea9f568f4737ca294f7fe0be81e91a10314542548344 days 10 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722653.03651558 Ether
0x940f995019467b5f2d302c275ffaac7b6c0a054b05c80b291a98c59d34a8c8b34540908344 days 16 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722650.2958 Ether
0x2a63e32f8e005c33b220f2010b2b6e21fcef1df0690e71f0fb7abc1dc439c1684531302346 days 5 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722650.2904 Ether
0x6fd7d55cf4bc03b5c2fb840b0c8c1a84f341486bc6374d9129af5d4f1eca77924524280347 days 8 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722651.301 Ether
0xcce7d2b18a0ec583dc1f484bc5943300afcf52b0928c4ebeb4f6896ac13c2d404520907347 days 21 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722651.01 Ether
0x13da030c332d09bff3bd3ad81afd10433a05b483d06733a4a0a39adae59824ef4515269348 days 19 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722650.323 Ether
0xbecbfaa1a74aa87dccc27a3c5962b08f224265e794290813e95aeb4d03f989e04502251350 days 21 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722650.23 Ether
0xe6582fb8fb5a1981b93ac39b47b8a89fe7959b5c39bc75b28bd2013e71d61cd24500260351 days 5 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722651 Ether
0x94b2c8e9143168918436b787563b8316791442b4eff43ed4fee1437b9bd129564499299351 days 8 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722650.49 Ether
0x6481bdb58f7d788c7eebd4355445036dbd8f1b0ba30074e88b1b6ee8045367744491323352 days 15 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722650.3 Ether
0xeb463fefb663af65717275623a83b9f8f2abf23b048ad92d9e21be6b141cc4274484719353 days 16 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722650.212 Ether
0xb70ab2dc76c29e43d1b61b8173797450cb9c11074b3825687a3192b4e87531014475252355 days 5 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722650.15 Ether
0x385c4a57e93c330e226ac0f93ece98e788d55e5bdac7d39d2e4670a98c0ebc874472717355 days 15 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722650.76808578 Ether
0x196c4a75ae1914bfe55b06dfd800776e055198792e21661a295c0923fedf48c04466097356 days 17 hrs ago0x1844b21593262668b7248d0f57a220caaba46ab90x2da59901939682eab8887edb0fd1ce42990722651.0085 Ether
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Warning: The Compiled Contract might be susceptible to ExpExponentCleanup (medium/high-severity), EventStructWrongData (very low-severity), NestedArrayFunctionCallDecoder (medium-severity) SolidityCompiler Bugs.

Contract Source Code Verified (Exact Match)
Contract Name: OysterPearl
Compiler Text: v0.4.18+commit.9cf6e910
Optimization Enabled: Yes
Runs (Optimiser):  200



  Contract Source Code   Find Similiar Contracts

pragma solidity ^0.4.18;

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

contract OysterPearl {
    // Public variables of PRL
    string public name;
    string public symbol;
    uint8 public decimals;
    uint256 public totalSupply;
    uint256 public funds;
    address public director;
    bool public saleClosed;
    bool public directorLock;
    uint256 public claimAmount;
    uint256 public payAmount;
    uint256 public feeAmount;
    uint256 public epoch;
    uint256 public retentionMax;

    // Array definitions
    mapping (address => uint256) public balances;
    mapping (address => mapping (address => uint256)) public allowance;
    mapping (address => bool) public buried;
    mapping (address => uint256) public claimed;

    // ERC20 event
    event Transfer(address indexed _from, address indexed _to, uint256 _value);
    
    // ERC20 event
    event Approval(address indexed _owner, address indexed _spender, uint256 _value);

    // This notifies clients about the amount burnt
    event Burn(address indexed _from, uint256 _value);
    
    // This notifies clients about an address getting buried
    event Bury(address indexed _target, uint256 _value);
    
    // This notifies clients about a claim being made on a buried address
    event Claim(address indexed _target, address indexed _payout, address indexed _fee);

    /**
     * Constructor function
     *
     * Initializes contract
     */
    function OysterPearl() public {
        director = msg.sender;
        name = "Oyster Pearl";
        symbol = "PRL";
        decimals = 18;
        saleClosed = true;
        directorLock = false;
        funds = 0;
        totalSupply = 0;
        
        // Marketing share (5%)
        totalSupply += 25000000 * 10 ** uint256(decimals);
        
        // Devfund share (15%)
        totalSupply += 75000000 * 10 ** uint256(decimals);
        
        // Allocation to match PREPRL supply and reservation for discretionary use
        totalSupply += 8000000 * 10 ** uint256(decimals);
        
        // Assign reserved PRL supply to the director
        balances[director] = totalSupply;
        
        // Define default values for Oyster functions
        claimAmount = 5 * 10 ** (uint256(decimals) - 1);
        payAmount = 4 * 10 ** (uint256(decimals) - 1);
        feeAmount = 1 * 10 ** (uint256(decimals) - 1);
        
        // Seconds in a year
        epoch = 31536000;
        
        // Maximum time for a sector to remain stored
        retentionMax = 40 * 10 ** uint256(decimals);
    }
    
    /**
     * ERC20 balance function
     */
    function balanceOf(address _owner) public constant returns (uint256 balance) {
        return balances[_owner];
    }
    
    modifier onlyDirector {
        // Director can lock themselves out to complete decentralization of Oyster network
        // An alternative is that another smart contract could become the decentralized director
        require(!directorLock);
        
        // Only the director is permitted
        require(msg.sender == director);
        _;
    }
    
    modifier onlyDirectorForce {
        // Only the director is permitted
        require(msg.sender == director);
        _;
    }
    
    /**
     * Transfers the director to a new address
     */
    function transferDirector(address newDirector) public onlyDirectorForce {
        director = newDirector;
    }
    
    /**
     * Withdraw funds from the contract
     */
    function withdrawFunds() public onlyDirectorForce {
        director.transfer(this.balance);
    }
    
    /**
     * Permanently lock out the director to decentralize Oyster
     * Invocation is discretionary because Oyster might be better suited to
     * transition to an artificially intelligent smart contract director
     */
    function selfLock() public payable onlyDirector {
        // The sale must be closed before the director gets locked out
        require(saleClosed);
        
        // Prevents accidental lockout
        require(msg.value == 10 ether);
        
        // Permanently lock out the director
        directorLock = true;
    }
    
    /**
     * Director can alter the storage-peg and broker fees
     */
    function amendClaim(uint8 claimAmountSet, uint8 payAmountSet, uint8 feeAmountSet, uint8 accuracy) public onlyDirector returns (bool success) {
        require(claimAmountSet == (payAmountSet + feeAmountSet));
        
        claimAmount = claimAmountSet * 10 ** (uint256(decimals) - accuracy);
        payAmount = payAmountSet * 10 ** (uint256(decimals) - accuracy);
        feeAmount = feeAmountSet * 10 ** (uint256(decimals) - accuracy);
        return true;
    }
    
    /**
     * Director can alter the epoch time
     */
    function amendEpoch(uint256 epochSet) public onlyDirector returns (bool success) {
        // Set the epoch
        epoch = epochSet;
        return true;
    }
    
    /**
     * Director can alter the maximum time of storage retention
     */
    function amendRetention(uint8 retentionSet, uint8 accuracy) public onlyDirector returns (bool success) {
        // Set retentionMax
        retentionMax = retentionSet * 10 ** (uint256(decimals) - accuracy);
        return true;
    }
    
    /**
     * Director can close the crowdsale
     */
    function closeSale() public onlyDirector returns (bool success) {
        // The sale must be currently open
        require(!saleClosed);
        
        // Lock the crowdsale
        saleClosed = true;
        return true;
    }

    /**
     * Director can open the crowdsale
     */
    function openSale() public onlyDirector returns (bool success) {
        // The sale must be currently closed
        require(saleClosed);
        
        // Unlock the crowdsale
        saleClosed = false;
        return true;
    }
    
    /**
     * Oyster Protocol Function
     * More information at https://oyster.ws/OysterWhitepaper.pdf
     * 
     * Bury an address
     *
     * When an address is buried; only claimAmount can be withdrawn once per epoch
     */
    function bury() public returns (bool success) {
        // The address must be previously unburied
        require(!buried[msg.sender]);
        
        // An address must have at least claimAmount to be buried
        require(balances[msg.sender] >= claimAmount);
        
        // Prevent addresses with large balances from getting buried
        require(balances[msg.sender] <= retentionMax);
        
        // Set buried state to true
        buried[msg.sender] = true;
        
        // Set the initial claim clock to 1
        claimed[msg.sender] = 1;
        
        // Execute an event reflecting the change
        Bury(msg.sender, balances[msg.sender]);
        return true;
    }
    
    /**
     * Oyster Protocol Function
     * More information at https://oyster.ws/OysterWhitepaper.pdf
     * 
     * Claim PRL from a buried address
     *
     * If a prior claim wasn't made during the current epoch, then claimAmount can be withdrawn
     *
     * @param _payout the address of the website owner
     * @param _fee the address of the broker node
     */
    function claim(address _payout, address _fee) public returns (bool success) {
        // The claimed address must have already been buried
        require(buried[msg.sender]);
        
        // The payout and fee addresses must be different
        require(_payout != _fee);
        
        // The claimed address cannot pay itself
        require(msg.sender != _payout);
        
        // The claimed address cannot pay itself
        require(msg.sender != _fee);
        
        // It must be either the first time this address is being claimed or atleast epoch in time has passed
        require(claimed[msg.sender] == 1 || (block.timestamp - claimed[msg.sender]) >= epoch);
        
        // Check if the buried address has enough
        require(balances[msg.sender] >= claimAmount);
        
        // Reset the claim clock to the current block time
        claimed[msg.sender] = block.timestamp;
        
        // Save this for an assertion in the future
        uint256 previousBalances = balances[msg.sender] + balances[_payout] + balances[_fee];
        
        // Remove claimAmount from the buried address
        balances[msg.sender] -= claimAmount;
        
        // Pay the website owner that invoked the web node that found the PRL seed key
        balances[_payout] += payAmount;
        
        // Pay the broker node that unlocked the PRL
        balances[_fee] += feeAmount;
        
        // Execute events to reflect the changes
        Claim(msg.sender, _payout, _fee);
        Transfer(msg.sender, _payout, payAmount);
        Transfer(msg.sender, _fee, feeAmount);
        
        // Failsafe logic that should never be false
        assert(balances[msg.sender] + balances[_payout] + balances[_fee] == previousBalances);
        return true;
    }
    
    /**
     * Crowdsale function
     */
    function () public payable {
        // Check if crowdsale is still active
        require(!saleClosed);
        
        // Minimum amount is 1 finney
        require(msg.value >= 1 finney);
        
        // Price is 1 ETH = 5000 PRL
        uint256 amount = msg.value * 5000;
        
        // totalSupply limit is 500 million PRL
        require(totalSupply + amount <= (500000000 * 10 ** uint256(decimals)));
        
        // Increases the total supply
        totalSupply += amount;
        
        // Adds the amount to the balance
        balances[msg.sender] += amount;
        
        // Track ETH amount raised
        funds += msg.value;
        
        // Execute an event reflecting the change
        Transfer(this, msg.sender, amount);
    }

    /**
     * Internal transfer, can be called by this contract only
     */
    function _transfer(address _from, address _to, uint _value) internal {
        // Sending addresses cannot be buried
        require(!buried[_from]);
        
        // If the receiving address is buried, it cannot exceed retentionMax
        if (buried[_to]) {
            require(balances[_to] + _value <= retentionMax);
        }
        
        // Prevent transfer to 0x0 address, use burn() instead
        require(_to != 0x0);
        
        // Check if the sender has enough
        require(balances[_from] >= _value);
        
        // Check for overflows
        require(balances[_to] + _value > balances[_to]);
        
        // Save this for an assertion in the future
        uint256 previousBalances = balances[_from] + balances[_to];
        
        // Subtract from the sender
        balances[_from] -= _value;
        
        // Add the same to the recipient
        balances[_to] += _value;
        Transfer(_from, _to, _value);
        
        // Failsafe logic that should never be false
        assert(balances[_from] + balances[_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) {
        // Check allowance
        require(_value <= allowance[_from][msg.sender]);
        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 on 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) {
        // Buried addresses cannot be approved
        require(!buried[msg.sender]);
        
        allowance[msg.sender][_spender] = _value;
        Approval(msg.sender, _spender, _value);
        return true;
    }

    /**
     * Set allowance for other address and notify
     *
     * Allows `_spender` to spend no more than `_value` tokens on 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) {
        // Buried addresses cannot be burnt
        require(!buried[msg.sender]);
        
        // Check if the sender has enough
        require(balances[msg.sender] >= _value);
        
        // Subtract from the sender
        balances[msg.sender] -= _value;
        
        // Updates totalSupply
        totalSupply -= _value;
        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) {
        // Buried addresses cannot be burnt
        require(!buried[_from]);
        
        // Check if the targeted balance is enough
        require(balances[_from] >= _value);
        
        // Check allowance
        require(_value <= allowance[_from][msg.sender]);
        
        // Subtract from the targeted balance
        balances[_from] -= _value;
        
        // Subtract from the sender's allowance
        allowance[_from][msg.sender] -= _value;
        
        // Update totalSupply
        totalSupply -= _value;
        Burn(_from, _value);
        return true;
    }
}

    Contract ABI  
[{"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":false,"inputs":[],"name":"openSale","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":"_payout","type":"address"},{"name":"_fee","type":"address"}],"name":"claim","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"retentionMax","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":false,"inputs":[],"name":"withdrawFunds","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"balances","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"buried","outputs":[{"name":"","type":"bool"}],"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":false,"inputs":[{"name":"epochSet","type":"uint256"}],"name":"amendEpoch","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"director","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"retentionSet","type":"uint8"},{"name":"accuracy","type":"uint8"}],"name":"amendRetention","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"bury","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"feeAmount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","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":false,"inputs":[{"name":"claimAmountSet","type":"uint8"},{"name":"payAmountSet","type":"uint8"},{"name":"feeAmountSet","type":"uint8"},{"name":"accuracy","type":"uint8"}],"name":"amendClaim","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"claimAmount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"epoch","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","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":true,"inputs":[],"name":"saleClosed","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"payAmount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"claimed","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"funds","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","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":false,"inputs":[],"name":"selfLock","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"},{"name":"","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newDirector","type":"address"}],"name":"transferDirector","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"closeSale","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"directorLock","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"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":"_owner","type":"address"},{"indexed":true,"name":"_spender","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_target","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Bury","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_target","type":"address"},{"indexed":true,"name":"_payout","type":"address"},{"indexed":true,"name":"_fee","type":"address"}],"name":"Claim","type":"event"}]

  Contract Creation Code Switch To Opcodes View
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   Swarm Source:
bzzr://b75989bfaa699eb7c7bce4f08a57b908d266e9f535c2d4c7d4c7b86a1ff28a04

 

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