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Contract

0x8fe19C447821B4cdCdd5012BCa1B5469cA96d80D
 
Transaction Hash
Method
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Approve165750002023-02-07 6:04:23655 days ago1675749863IN
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0 ETH0.0005510322.86157685
Transfer161297942022-12-07 2:01:59717 days ago1670378519IN
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0 ETH0.0007042214.05615708
Transfer156331312022-09-28 16:48:23787 days ago1664383703IN
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0 ETH0.00071314.23126757
Approve147305792022-05-07 15:28:53931 days ago1651937333IN
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0 ETH0.0011341843.45021466
Approve145966922022-04-16 13:45:26952 days ago1650116726IN
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0 ETH0.0005825822.31854325
Approve144798592022-03-29 7:46:25970 days ago1648539985IN
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0 ETH0.0011298124.48940544
Approve132659962021-09-21 0:54:471159 days ago1632185687IN
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0 ETH0.00324776124.42122103
Transfer131349032021-08-31 18:21:181179 days ago1630434078IN
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0 ETH0.00619711112.90264272
Approve131061482021-08-27 7:28:081184 days ago1630049288IN
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0 ETH0.00552148119
Approve124804992021-05-21 22:53:231281 days ago1621637603IN
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0 ETH00
Transfer121278022021-03-28 13:11:371336 days ago1616937097IN
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0 ETH0.0055928104
Approve114597622020-12-15 20:12:441438 days ago1608063164IN
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0 ETH0.0010992844.5
Approve114597482020-12-15 20:09:031438 days ago1608062943IN
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0 ETH0.0012351550
Approve109169662020-09-23 5:37:521522 days ago1600839472IN
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0 ETH0.0026846761
Transfer98833622020-04-16 11:58:401682 days ago1587038320IN
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0 ETH0.0003854910
Transfer With Pa...94595342020-02-11 4:34:491747 days ago1581395689IN
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0 ETH0.000077031
Transfer With Pa...94530152020-02-10 4:53:391748 days ago1581310419IN
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0 ETH0.00007241
Transfer With Pa...93867632020-01-31 0:24:301758 days ago1580430270IN
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0 ETH0.000264681
Transfer With Pa...93793622020-01-29 20:45:411759 days ago1580330741IN
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0 ETH0.000061021
Transfer With Pa...93793622020-01-29 20:45:411759 days ago1580330741IN
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0 ETH0.000061021
Transfer With Pa...93728682020-01-28 21:11:571760 days ago1580245917IN
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0 ETH0.00025781
Transfer With Pa...93582792020-01-26 15:30:041763 days ago1580052604IN
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0 ETH0.000336251
Transfer With Pa...93582232020-01-26 15:19:391763 days ago1580051979IN
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0 ETH0.000341381
Transfer With Pa...93582132020-01-26 15:18:141763 days ago1580051894IN
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0 ETH0.000339771
Transfer With Pa...93581982020-01-26 15:16:171763 days ago1580051777IN
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0 ETH0.000340651
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Latest 25 internal transactions (View All)

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Parent Transaction Hash Block From To
94477032020-02-09 9:14:391749 days ago1581239679
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94477032020-02-09 9:14:391749 days ago1581239679
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0.00048 ETH
94407442020-02-08 7:30:141750 days ago1581147014
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0.00004 ETH
94407442020-02-08 7:30:141750 days ago1581147014
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0.0002 ETH
94407352020-02-08 7:28:131750 days ago1581146893
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0.00004 ETH
94407352020-02-08 7:28:131750 days ago1581146893
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0.0002 ETH
94407292020-02-08 7:27:031750 days ago1581146823
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0.00004 ETH
94407292020-02-08 7:27:031750 days ago1581146823
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0.0002 ETH
94407002020-02-08 7:20:351750 days ago1581146435
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0.00004 ETH
94407002020-02-08 7:20:351750 days ago1581146435
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0.0002 ETH
94297952020-02-06 14:59:361752 days ago1581001176
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0.00625 ETH
94297952020-02-06 14:59:361752 days ago1581001176
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0.03125 ETH
94044792020-02-02 17:37:361756 days ago1580665056
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0.00004 ETH
94044792020-02-02 17:37:361756 days ago1580665056
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0.0002 ETH
94044702020-02-02 17:35:111756 days ago1580664911
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94044702020-02-02 17:35:111756 days ago1580664911
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0.0002 ETH
94044702020-02-02 17:35:111756 days ago1580664911
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94044702020-02-02 17:35:111756 days ago1580664911
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94044352020-02-02 17:28:221756 days ago1580664502
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94044352020-02-02 17:28:221756 days ago1580664502
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0.0002 ETH
94044352020-02-02 17:28:221756 days ago1580664502
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0.00004 ETH
94044352020-02-02 17:28:221756 days ago1580664502
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0.0002 ETH
94044352020-02-02 17:28:221756 days ago1580664502
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0.00004 ETH
94044352020-02-02 17:28:221756 days ago1580664502
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0.0002 ETH
93977342020-02-01 16:57:271757 days ago1580576247
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0.00004 ETH
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Contract Source Code Verified (Exact Match)

Contract Name:
ETToken

Compiler Version
v0.4.21+commit.dfe3193c

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2018-03-15
*/

pragma solidity ^0.4.21;

// SafeMath is a part of Zeppelin Solidity library
// licensed under MIT License
// https://github.com/OpenZeppelin/zeppelin-solidity/blob/master/LICENSE

/**
 * @title SafeMath
 * @dev Math operations with safety checks that throw on error
 */
library SafeMath {
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }
        uint256 c = a * b;
        assert(c / a == b);
        return c;
    }

    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 c;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        assert(b <= a);
        return a - b;
    }

    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        assert(c >= a);
        return c;
    }
}

// https://github.com/OpenZeppelin/zeppelin-solidity

/**
 * @title ERC20Basic
 * @dev Simpler version of ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/179
 */
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);
}

/**
 * @title ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/20
 */
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);
}

/**
 * @title Basic token
 * @dev Basic version of StandardToken, with no allowances.
 */
contract BasicToken is ERC20Basic {
    using SafeMath for uint256;

    mapping(address => uint256) balances;

    uint256 totalSupply_;

    /**
    * @dev Protection from short address attack
    */
    modifier onlyPayloadSize(uint size) {
        assert(msg.data.length == size + 4);
        _;
    }

    /**
    * @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) onlyPayloadSize(2 * 32) public returns (bool) {
        require(_to != address(0));
        require(_value <= balances[msg.sender]);

        // SafeMath.sub will throw if there is not enough balance.
        balances[msg.sender] = balances[msg.sender].sub(_value);
        balances[_to] = balances[_to].add(_value);
        emit Transfer(msg.sender, _to, _value);

        _postTransferHook(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 balance) {
        return balances[_owner];
    }

    /**
    * @dev Hook for custom actions to be executed after transfer has completed
    * @param _from Transferred from
    * @param _to Transferred to
    * @param _value Value transferred
    */
    function _postTransferHook(address _from, address _to, uint256 _value) internal;
}

/**
 * @title Standard ERC20 token
 *
 * @dev Implementation of the basic standard token.
 * @dev https://github.com/ethereum/EIPs/issues/20
 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
 */
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);

        _postTransferHook(_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 Owned {
    address owner;

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

    /// @dev Contract constructor
    function Owned() public {
        owner = msg.sender;
    }
}


contract AcceptsTokens {
    ETToken public tokenContract;

    function AcceptsTokens(address _tokenContract) public {
        tokenContract = ETToken(_tokenContract);
    }

    modifier onlyTokenContract {
        require(msg.sender == address(tokenContract));
        _;
    }

    function acceptTokens(address _from, uint256 _value, uint256 param1, uint256 param2, uint256 param3) external;
}

contract ETToken is Owned, StandardToken {
    using SafeMath for uint;

    string public name = "ETH.TOWN Token";
    string public symbol = "ETIT";
    uint8 public decimals = 18;

    address public beneficiary;
    address public oracle;
    address public heroContract;
    modifier onlyOracle {
        require(msg.sender == oracle);
        _;
    }

    mapping (uint32 => address) public floorContracts;
    mapping (address => bool) public canAcceptTokens;

    mapping (address => bool) public isMinter;

    modifier onlyMinters {
        require(msg.sender == owner || isMinter[msg.sender]);
        _;
    }

    event Dividend(uint256 value);
    event Withdrawal(address indexed to, uint256 value);
    event Burn(address indexed from, uint256 value);

    function ETToken() public {
        oracle = owner;
        beneficiary = owner;

        totalSupply_ = 0;
    }

    function setOracle(address _oracle) external onlyOwner {
        oracle = _oracle;
    }
    function setBeneficiary(address _beneficiary) external onlyOwner {
        beneficiary = _beneficiary;
    }
    function setHeroContract(address _heroContract) external onlyOwner {
        heroContract = _heroContract;
    }

    function _mintTokens(address _user, uint256 _amount) private {
        require(_user != 0x0);

        balances[_user] = balances[_user].add(_amount);
        totalSupply_ = totalSupply_.add(_amount);

        emit Transfer(address(this), _user, _amount);
    }

    function authorizeFloor(uint32 _index, address _floorContract) external onlyOwner {
        floorContracts[_index] = _floorContract;
    }

    function _acceptDividends(uint256 _value) internal {
        uint256 beneficiaryShare = _value / 5;
        uint256 poolShare = _value.sub(beneficiaryShare);

        beneficiary.transfer(beneficiaryShare);

        emit Dividend(poolShare);
    }

    function acceptDividends(uint256 _value, uint32 _floorIndex) external {
        require(floorContracts[_floorIndex] == msg.sender);

        _acceptDividends(_value);
    }

    function rewardTokensFloor(address _user, uint256 _tokens, uint32 _floorIndex) external {
        require(floorContracts[_floorIndex] == msg.sender);

        _mintTokens(_user, _tokens);
    }

    function rewardTokens(address _user, uint256 _tokens) external onlyMinters {
        _mintTokens(_user, _tokens);
    }

    function() payable public {
        // Intentionally left empty, for use by floors
    }

    function payoutDividends(address _user, uint256 _value) external onlyOracle {
        _user.transfer(_value);

        emit Withdrawal(_user, _value);
    }

    function accountAuth(uint256 /*_challenge*/) external {
        // Does nothing by design
    }

    function burn(uint256 _amount) external {
        require(balances[msg.sender] >= _amount);

        balances[msg.sender] = balances[msg.sender].sub(_amount);
        totalSupply_ = totalSupply_.sub(_amount);

        emit Burn(msg.sender, _amount);
    }

    function setCanAcceptTokens(address _address, bool _value) external onlyOwner {
        canAcceptTokens[_address] = _value;
    }

    function setIsMinter(address _address, bool _value) external onlyOwner {
        isMinter[_address] = _value;
    }

    function _invokeTokenRecipient(address _from, address _to, uint256 _value, uint256 _param1, uint256 _param2, uint256 _param3) internal {
        if (!canAcceptTokens[_to]) {
            return;
        }

        AcceptsTokens recipient = AcceptsTokens(_to);

        recipient.acceptTokens(_from, _value, _param1, _param2, _param3);
    }

    /**
    * @dev transfer token for a specified address and forward the parameters to token recipient if any
    * @param _to The address to transfer to.
    * @param _value The amount to be transferred.
    * @param _param1 Parameter 1 for the token recipient
    * @param _param2 Parameter 2 for the token recipient
    * @param _param3 Parameter 3 for the token recipient
    */
    function transferWithParams(address _to, uint256 _value, uint256 _param1, uint256 _param2, uint256 _param3) onlyPayloadSize(5 * 32) external returns (bool) {
        require(_to != address(0));
        require(_value <= balances[msg.sender]);

        // SafeMath.sub will throw if there is not enough balance.
        balances[msg.sender] = balances[msg.sender].sub(_value);
        balances[_to] = balances[_to].add(_value);
        emit Transfer(msg.sender, _to, _value);

        _invokeTokenRecipient(msg.sender, _to, _value, _param1, _param2, _param3);

        return true;
    }

    /**
    * @dev Hook for custom actions to be executed after transfer has completed
    * @param _from Transferred from
    * @param _to Transferred to
    * @param _value Value transferred
    */
    function _postTransferHook(address _from, address _to, uint256 _value) internal {
        _invokeTokenRecipient(_from, _to, _value, 0, 0, 0);
    }


}

Contract Security Audit

Contract ABI

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":[{"name":"","type":"address"}],"name":"isMinter","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_heroContract","type":"address"}],"name":"setHeroContract","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_addedValue","type":"uint256"}],"name":"increaseApproval","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"value","type":"uint256"}],"name":"Dividend","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Withdrawal","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":"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":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"}]

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Swarm Source

bzzr://17eec06f396b0ca99a695c50ebca4876cca778c0bd1a22a29ae6199c2e734ecd

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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.