ETH Price: $2,626.81 (-2.24%)
Gas: 0.86 Gwei

Contract

0xa5409ec958C83C3f309868babACA7c86DCB077c1
 

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0x8ae965990912a80e6feb26943180ad84926207d610edef41a2eb1fe855e6bb78 Register Proxy(pending)2025-02-12 11:49:0418 mins ago1739360944IN
OpenSea: Registry
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0x439f33df5603c889a2055dff7c66117ee712369498c090b442e3f3f0d7252c0d Register Proxy(pending)2025-02-12 10:01:522 hrs ago1739354512IN
OpenSea: Registry
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0xd6c0cca9dd47e45217559a10946b04f6ce9318d55b99feaba740a9646842660b Register Proxy(pending)2025-02-12 8:09:013 hrs ago1739347741IN
OpenSea: Registry
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0xf7faf37306fdaef951d6284acbe04ead8823af245f7d2aa9edf4cdd5a8a99ae0 Register Proxy(pending)2025-02-12 6:52:155 hrs ago1739343135IN
OpenSea: Registry
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0x452557bba2f18f1b3eba83a329523b26120f952d7ca77949667a71ae56985c5d Register Proxy(pending)2025-02-12 6:52:155 hrs ago1739343135IN
OpenSea: Registry
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0xd0bb67db6bdd26a0d35ce75fec1e3e59f2e702fc5ecc1c30fedf14b4b7f2e5d9 Register Proxy(pending)2025-02-12 6:40:415 hrs ago1739342441IN
OpenSea: Registry
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0xdaa9cca45c7f8cdad067bc183fbcebab118e8c8bd1657f432fc06c83846ab26b Register Proxy(pending)2025-02-12 5:47:276 hrs ago1739339247IN
OpenSea: Registry
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0x22083a64527ff868821dec28cbd5c3683ace63b968f7c5462991a837869abe65 Register Proxy(pending)2025-02-12 5:30:166 hrs ago1739338216IN
OpenSea: Registry
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0x4e59018eea9d3d451f5000d4a384a84bd5f77f3b8595cd506ce0503a08904737 Register Proxy(pending)2025-02-12 1:41:2510 hrs ago1739324485IN
OpenSea: Registry
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OpenSea: Registry
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0xd9857447d974d10328edb613a6bcccb2c31472c8f7bcbff9b0088eb21893dc7a Register Proxy(pending)2025-02-12 1:16:1910 hrs ago1739322979IN
OpenSea: Registry
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0x080f1c4e0229c7ade98d97ced3909ec9dfe20a5aea3b449312891aefae5036d2 Register Proxy(pending)2025-02-12 1:16:1910 hrs ago1739322979IN
OpenSea: Registry
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0x898345b92e0dd900aa5ee29610249e1d5401ed19f8f5f3c8a04272c889e671c4 Register Proxy(pending)2025-02-12 0:31:1611 hrs ago1739320276IN
OpenSea: Registry
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0x3bcdde80ded4d98221be6fd73a5f091d0967806d390ac9dad9a27cbcceec1269 Register Proxy(pending)2025-02-12 0:31:1611 hrs ago1739320276IN
OpenSea: Registry
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0x14d605ae666f1eec2dbbda8688c57594c36641bf062e2a06817b9c5d73b6ebc6 Register Proxy(pending)2025-02-12 0:31:1611 hrs ago1739320276IN
OpenSea: Registry
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0xeffca78d4de45968b83a607d01c750ab5a632b34bb5287d2efe9db1e0bd47c45 Register Proxy(pending)2025-02-12 0:31:0411 hrs ago1739320264IN
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0xfd4495d4476e935b3487c479ff31cbe7734814588cbb2fe4ba4ca5d4d1f6ef2f Register Proxy(pending)2025-02-11 23:31:2812 hrs ago1739316688IN
OpenSea: Registry
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0x6e83795ea7bf812c4fb3ea8ce152ceb98984ce5deaabd68ff894c465bc457d26 Register Proxy(pending)2025-02-11 23:21:2312 hrs ago1739316083IN
OpenSea: Registry
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0x4cb569494bba59b21d1fe5fe303a4f92cd876060035f1f60fee77b6a606e72e8 Register Proxy(pending)2025-02-11 23:09:5112 hrs ago1739315391IN
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0xbe0b3bec16bb31b0e32a02917d11d07f6811a8a1957333e0d68a6dcaf3fba46d Register Proxy(pending)2025-02-11 22:17:2813 hrs ago1739312248IN
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0xebd8af1b194d0cc5802636dd44a62923c90bde95eb140df5d04d34f623fee31b Register Proxy(pending)2025-02-11 22:14:5413 hrs ago1739312094IN
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0x2984805c5ce52743a0b60e22d164635113332fe452b822c2e8d8cd650b8a15fc Register Proxy(pending)2025-02-11 22:14:5413 hrs ago1739312094IN
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0x4b74f706f86bc700e31bee03beb6a8792f4220625d75630ea1aec1cef75d4db1 Register Proxy(pending)2025-02-11 17:35:2618 hrs ago1739295326IN
OpenSea: Registry
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0x2b4765e8c720a87f8efe13cd87443a74864dbf5eb280523bd5c6c36fe9783395 Register Proxy(pending)2025-02-11 17:35:2618 hrs ago1739295326IN
OpenSea: Registry
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0xa3a44fcb9625664d64a02083bc6dc5c93582034924459925cbc87ba3cbd3bcec Register Proxy(pending)2025-02-11 15:57:0820 hrs ago1739289428IN
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217928752025-02-07 6:34:475 days ago1738910087
OpenSea: Registry
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217835182025-02-05 23:15:356 days ago1738797335
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215248562024-12-31 20:32:1142 days ago1735677131
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Contract Source Code Verified (Exact Match)

Contract Name:
WyvernProxyRegistry

Compiler Version
v0.4.23+commit.124ca40d

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2018-06-12
*/

pragma solidity ^0.4.13;

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 transfer control of the contract to a newOwner.
   * @param newOwner The address to transfer ownership to.
   */
  function transferOwnership(address newOwner) public onlyOwner {
    require(newOwner != address(0));
    emit OwnershipTransferred(owner, newOwner);
    owner = newOwner;
  }

  /**
   * @dev Allows the current owner to relinquish control of the contract.
   */
  function renounceOwnership() public onlyOwner {
    emit OwnershipRenounced(owner);
    owner = address(0);
  }
}

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 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 TokenRecipient {
    event ReceivedEther(address indexed sender, uint amount);
    event ReceivedTokens(address indexed from, uint256 value, address indexed token, bytes extraData);

    /**
     * @dev Receive tokens and generate a log event
     * @param from Address from which to transfer tokens
     * @param value Amount of tokens to transfer
     * @param token Address of token
     * @param extraData Additional data to log
     */
    function receiveApproval(address from, uint256 value, address token, bytes extraData) public {
        ERC20 t = ERC20(token);
        require(t.transferFrom(from, this, value));
        emit ReceivedTokens(from, value, token, extraData);
    }

    /**
     * @dev Receive Ether and generate a log event
     */
    function () payable public {
        emit ReceivedEther(msg.sender, msg.value);
    }
}

contract ProxyRegistry is Ownable {

    /* DelegateProxy implementation contract. Must be initialized. */
    address public delegateProxyImplementation;

    /* Authenticated proxies by user. */
    mapping(address => OwnableDelegateProxy) public proxies;

    /* Contracts pending access. */
    mapping(address => uint) public pending;

    /* Contracts allowed to call those proxies. */
    mapping(address => bool) public contracts;

    /* Delay period for adding an authenticated contract.
       This mitigates a particular class of potential attack on the Wyvern DAO (which owns this registry) - if at any point the value of assets held by proxy contracts exceeded the value of half the WYV supply (votes in the DAO),
       a malicious but rational attacker could buy half the Wyvern and grant themselves access to all the proxy contracts. A delay period renders this attack nonthreatening - given two weeks, if that happened, users would have
       plenty of time to notice and transfer their assets.
    */
    uint public DELAY_PERIOD = 2 weeks;

    /**
     * Start the process to enable access for specified contract. Subject to delay period.
     *
     * @dev ProxyRegistry owner only
     * @param addr Address to which to grant permissions
     */
    function startGrantAuthentication (address addr)
        public
        onlyOwner
    {
        require(!contracts[addr] && pending[addr] == 0);
        pending[addr] = now;
    }

    /**
     * End the process to nable access for specified contract after delay period has passed.
     *
     * @dev ProxyRegistry owner only
     * @param addr Address to which to grant permissions
     */
    function endGrantAuthentication (address addr)
        public
        onlyOwner
    {
        require(!contracts[addr] && pending[addr] != 0 && ((pending[addr] + DELAY_PERIOD) < now));
        pending[addr] = 0;
        contracts[addr] = true;
    }

    /**
     * Revoke access for specified contract. Can be done instantly.
     *
     * @dev ProxyRegistry owner only
     * @param addr Address of which to revoke permissions
     */    
    function revokeAuthentication (address addr)
        public
        onlyOwner
    {
        contracts[addr] = false;
    }

    /**
     * Register a proxy contract with this registry
     *
     * @dev Must be called by the user which the proxy is for, creates a new AuthenticatedProxy
     * @return New AuthenticatedProxy contract
     */
    function registerProxy()
        public
        returns (OwnableDelegateProxy proxy)
    {
        require(proxies[msg.sender] == address(0));
        proxy = new OwnableDelegateProxy(msg.sender, delegateProxyImplementation, abi.encodeWithSignature("initialize(address,address)", msg.sender, address(this)));
        proxies[msg.sender] = proxy;
        return proxy;
    }

}

contract WyvernProxyRegistry is ProxyRegistry {

    string public constant name = "Project Wyvern Proxy Registry";

    /* Whether the initial auth address has been set. */
    bool public initialAddressSet = false;

    constructor ()
        public
    {
        delegateProxyImplementation = new AuthenticatedProxy();
    }

    /** 
     * Grant authentication to the initial Exchange protocol contract
     *
     * @dev No delay, can only be called once - after that the standard registry process with a delay must be used
     * @param authAddress Address of the contract to grant authentication
     */
    function grantInitialAuthentication (address authAddress)
        onlyOwner
        public
    {
        require(!initialAddressSet);
        initialAddressSet = true;
        contracts[authAddress] = true;
    }

}

contract OwnedUpgradeabilityStorage {

  // Current implementation
  address internal _implementation;

  // Owner of the contract
  address private _upgradeabilityOwner;

  /**
   * @dev Tells the address of the owner
   * @return the address of the owner
   */
  function upgradeabilityOwner() public view returns (address) {
    return _upgradeabilityOwner;
  }

  /**
   * @dev Sets the address of the owner
   */
  function setUpgradeabilityOwner(address newUpgradeabilityOwner) internal {
    _upgradeabilityOwner = newUpgradeabilityOwner;
  }

  /**
  * @dev Tells the address of the current implementation
  * @return address of the current implementation
  */
  function implementation() public view returns (address) {
    return _implementation;
  }

  /**
  * @dev Tells the proxy type (EIP 897)
  * @return Proxy type, 2 for forwarding proxy
  */
  function proxyType() public pure returns (uint256 proxyTypeId) {
    return 2;
  }
}

contract AuthenticatedProxy is TokenRecipient, OwnedUpgradeabilityStorage {

    /* Whether initialized. */
    bool initialized = false;

    /* Address which owns this proxy. */
    address public user;

    /* Associated registry with contract authentication information. */
    ProxyRegistry public registry;

    /* Whether access has been revoked. */
    bool public revoked;

    /* Delegate call could be used to atomically transfer multiple assets owned by the proxy contract with one order. */
    enum HowToCall { Call, DelegateCall }

    /* Event fired when the proxy access is revoked or unrevoked. */
    event Revoked(bool revoked);

    /**
     * Initialize an AuthenticatedProxy
     *
     * @param addrUser Address of user on whose behalf this proxy will act
     * @param addrRegistry Address of ProxyRegistry contract which will manage this proxy
     */
    function initialize (address addrUser, ProxyRegistry addrRegistry)
        public
    {
        require(!initialized);
        initialized = true;
        user = addrUser;
        registry = addrRegistry;
    }

    /**
     * Set the revoked flag (allows a user to revoke ProxyRegistry access)
     *
     * @dev Can be called by the user only
     * @param revoke Whether or not to revoke access
     */
    function setRevoke(bool revoke)
        public
    {
        require(msg.sender == user);
        revoked = revoke;
        emit Revoked(revoke);
    }

    /**
     * Execute a message call from the proxy contract
     *
     * @dev Can be called by the user, or by a contract authorized by the registry as long as the user has not revoked access
     * @param dest Address to which the call will be sent
     * @param howToCall Which kind of call to make
     * @param calldata Calldata to send
     * @return Result of the call (success or failure)
     */
    function proxy(address dest, HowToCall howToCall, bytes calldata)
        public
        returns (bool result)
    {
        require(msg.sender == user || (!revoked && registry.contracts(msg.sender)));
        if (howToCall == HowToCall.Call) {
            result = dest.call(calldata);
        } else if (howToCall == HowToCall.DelegateCall) {
            result = dest.delegatecall(calldata);
        }
        return result;
    }

    /**
     * Execute a message call and assert success
     * 
     * @dev Same functionality as `proxy`, just asserts the return value
     * @param dest Address to which the call will be sent
     * @param howToCall What kind of call to make
     * @param calldata Calldata to send
     */
    function proxyAssert(address dest, HowToCall howToCall, bytes calldata)
        public
    {
        require(proxy(dest, howToCall, calldata));
    }

}

contract Proxy {

  /**
  * @dev Tells the address of the implementation where every call will be delegated.
  * @return address of the implementation to which it will be delegated
  */
  function implementation() public view returns (address);

  /**
  * @dev Tells the type of proxy (EIP 897)
  * @return Type of proxy, 2 for upgradeable proxy
  */
  function proxyType() public pure returns (uint256 proxyTypeId);

  /**
  * @dev Fallback function allowing to perform a delegatecall to the given implementation.
  * This function will return whatever the implementation call returns
  */
  function () payable public {
    address _impl = implementation();
    require(_impl != address(0));

    assembly {
      let ptr := mload(0x40)
      calldatacopy(ptr, 0, calldatasize)
      let result := delegatecall(gas, _impl, ptr, calldatasize, 0, 0)
      let size := returndatasize
      returndatacopy(ptr, 0, size)

      switch result
      case 0 { revert(ptr, size) }
      default { return(ptr, size) }
    }
  }
}

contract OwnedUpgradeabilityProxy is Proxy, OwnedUpgradeabilityStorage {
  /**
  * @dev Event to show ownership has been transferred
  * @param previousOwner representing the address of the previous owner
  * @param newOwner representing the address of the new owner
  */
  event ProxyOwnershipTransferred(address previousOwner, address newOwner);

  /**
  * @dev This event will be emitted every time the implementation gets upgraded
  * @param implementation representing the address of the upgraded implementation
  */
  event Upgraded(address indexed implementation);

  /**
  * @dev Upgrades the implementation address
  * @param implementation representing the address of the new implementation to be set
  */
  function _upgradeTo(address implementation) internal {
    require(_implementation != implementation);
    _implementation = implementation;
    emit Upgraded(implementation);
  }

  /**
  * @dev Throws if called by any account other than the owner.
  */
  modifier onlyProxyOwner() {
    require(msg.sender == proxyOwner());
    _;
  }

  /**
   * @dev Tells the address of the proxy owner
   * @return the address of the proxy owner
   */
  function proxyOwner() public view returns (address) {
    return upgradeabilityOwner();
  }

  /**
   * @dev Allows the current owner to transfer control of the contract to a newOwner.
   * @param newOwner The address to transfer ownership to.
   */
  function transferProxyOwnership(address newOwner) public onlyProxyOwner {
    require(newOwner != address(0));
    emit ProxyOwnershipTransferred(proxyOwner(), newOwner);
    setUpgradeabilityOwner(newOwner);
  }

  /**
   * @dev Allows the upgradeability owner to upgrade the current implementation of the proxy.
   * @param implementation representing the address of the new implementation to be set.
   */
  function upgradeTo(address implementation) public onlyProxyOwner {
    _upgradeTo(implementation);
  }

  /**
   * @dev Allows the upgradeability owner to upgrade the current implementation of the proxy
   * and delegatecall the new implementation for initialization.
   * @param implementation representing the address of the new implementation to be set.
   * @param data represents the msg.data to bet sent in the low level call. This parameter may include the function
   * signature of the implementation to be called with the needed payload
   */
  function upgradeToAndCall(address implementation, bytes data) payable public onlyProxyOwner {
    upgradeTo(implementation);
    require(address(this).delegatecall(data));
  }
}

contract OwnableDelegateProxy is OwnedUpgradeabilityProxy {

    constructor(address owner, address initialImplementation, bytes calldata)
        public
    {
        setUpgradeabilityOwner(owner);
        _upgradeTo(initialImplementation);
        require(initialImplementation.delegatecall(calldata));
    }

}

Contract Security Audit

Contract ABI

[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"initialAddressSet","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"addr","type":"address"}],"name":"endGrantAuthentication","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"addr","type":"address"}],"name":"revokeAuthentication","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"pending","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"contracts","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"renounceOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"delegateProxyImplementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"proxies","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"addr","type":"address"}],"name":"startGrantAuthentication","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"registerProxy","outputs":[{"name":"proxy","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"DELAY_PERIOD","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"authAddress","type":"address"}],"name":"grantInitialAuthentication","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"}],"name":"OwnershipRenounced","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"},{"indexed":true,"name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"}]

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Swarm Source

bzzr://081159724a86e228bc0881bf8e78a8d241b156f02531306a6dc375bfb55144a6

Block Transaction Difficulty Gas Used Reward
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Block Uncle Number Difficulty Gas Used Reward
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Validator Index Block Amount
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Transaction Hash Block Value Eth2 PubKey Valid
View All Deposits
Chain Token Portfolio % Price Amount Value
BSC52.18%$0.00009767,504,500,000$6,560,762.35
BSC47.23%$0.00031618,800,000,000$5,939,074.16
BSC0.09%$647.3717.4132$11,272.76
BSC0.04%$2,632.312.1154$5,568.39
BSC<0.01%$0.04632310,000$463.23
BSC<0.01%$0.02563310,000$256.33
BSC<0.01%$0.999956158.6$158.59
BSC<0.01%$0.4655210$4.66
BSC<0.01%$2.182.1154$4.61
BSC<0.01%$0.000005804,828$4.14
BSC<0.01%$0.12097222.0188$2.66
BSC<0.01%$0.3095871.0584$0.3276
BSC<0.01%$0.0278433.8105$0.106
ETH0.13%$0.28422255,338.0743$15,728.28
ETH0.10%$2,626.814.8927$12,852.28
ETH0.09%$0.99926610,907.5078$10,899.5
ETH0.04%$25.63198.3746$5,084.34
ETH0.03%$0.9999494,091.8276$4,091.62
ETH0.02%$0.99991,910.2636$1,910.07
ETH<0.01%$0.2217613,683.682$816.9
ETH<0.01%$0.3094111,859.2877$575.28
ETH<0.01%$0.01388226,433.3333$366.94
ETH<0.01%$0.466221737.1704$343.68
ETH<0.01%$0.997469321.0961$320.28
ETH<0.01%$0.715866400$286.35
ETH<0.01%$1.43184.9209$264.57
ETH<0.01%$0.00001616,500,022.2631$263.01
ETH<0.01%$18.5311.8518$219.61
ETH<0.01%$647.550.1731$112.12
ETH<0.01%$0.32206264.7102$85.25
ETH<0.01%$0.0225793,462.5699$78.18
ETH<0.01%$56.350.97$54.66
ETH<0.01%$0.065872294.6931$19.41
ETH<0.01%$0.092065133.49$12.29
ETH<0.01%$0.026556435.9276$11.58
ETH<0.01%$4.340.9526$4.13
ETH<0.01%$0.020314165.209$3.36
ETH<0.01%$0.0185499$1.84
ETH<0.01%$0.7862431.3473$1.06
ETH<0.01%$0.001003739.3131$0.7413
ETH<0.01%$0.007325100$0.7325
ETH<0.01%$0.000006100,000$0.591
ETH<0.01%<$0.00000177,053,420.0918$0.5233
POL<0.01%$2,626.690.4621$1,213.7
POL<0.01%$0.310559272.2688$84.56
POL<0.01%$0.99995716.9362$16.94
ARB<0.01%$2,626.870.2201$578.12
AVAX<0.01%$25.35.1417$130.06
FTM<0.01%$0.4699142.4401$66.93
CRONOS<0.01%$0.99995735.7849$35.78
CRONOS<0.01%$0.092042$0.18408
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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.