ETH Price: $3,788.05 (+6.13%)

Token

Illuvium (ILV)
 

Overview

Max Total Supply

8,696,376.611910519288418333 ILV

Holders

53,866 ( 0.020%)

Market

Price

$58.16 @ 0.015354 ETH (+8.13%)

Onchain Market Cap

$505,781,263.75

Circulating Supply Market Cap

$415,444,272.00

Other Info

Token Contract (WITH 18 Decimals)

Balance
0 ILV

Value
$0.00
0xe0856a94b8bafc0e1212e60606e9773e938132cb
Loading...
Loading
Loading...
Loading
Loading...
Loading

OVERVIEW

Illuvium is a decentralized, NFT collection and auto battler game built on the Ethereum network.

Market

Volume (24H):$50,709,034.00
Market Capitalization:$415,444,272.00
Circulating Supply:7,170,372.00 ILV
Market Data Source: Coinmarketcap

# Exchange Pair Price  24H Volume % Volume

Contract Source Code Verified (Exact Match)

Contract Name:
IlluviumERC20

Compiler Version
v0.8.1+commit.df193b15

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 4 : IlluviumERC20.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.1;

import "../utils/AddressUtils.sol";
import "../utils/AccessControl.sol";
import "./ERC20Receiver.sol";

/**
 * @title Illuvium (ILV) ERC20 token
 *
 * @notice Illuvium is a core ERC20 token powering the game.
 *      It serves as an in-game currency, is tradable on exchanges,
 *      it powers up the governance protocol (Illuvium DAO) and participates in Yield Farming.
 *
 * @dev Token Summary:
 *      - Symbol: ILV
 *      - Name: Illuvium
 *      - Decimals: 18
 *      - Initial token supply: 7,000,000 ILV
 *      - Maximum final token supply: 10,000,000 ILV
 *          - Up to 3,000,000 ILV may get minted in 3 years period via yield farming
 *      - Mintable: total supply may increase
 *      - Burnable: total supply may decrease
 *
 * @dev Token balances and total supply are effectively 192 bits long, meaning that maximum
 *      possible total supply smart contract is able to track is 2^192 (close to 10^40 tokens)
 *
 * @dev Smart contract doesn't use safe math. All arithmetic operations are overflow/underflow safe.
 *      Additionally, Solidity 0.8.1 enforces overflow/underflow safety.
 *
 * @dev ERC20: reviewed according to https://eips.ethereum.org/EIPS/eip-20
 *
 * @dev ERC20: contract has passed OpenZeppelin ERC20 tests,
 *      see https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/test/token/ERC20/ERC20.behavior.js
 *      see https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/test/token/ERC20/ERC20.test.js
 *      see adopted copies of these tests in the `test` folder
 *
 * @dev ERC223/ERC777: not supported;
 *      send tokens via `safeTransferFrom` and implement `ERC20Receiver.onERC20Received` on the receiver instead
 *
 * @dev Multiple Withdrawal Attack on ERC20 Tokens (ISBN:978-1-7281-3027-9) - resolved
 *      Related events and functions are marked with "ISBN:978-1-7281-3027-9" tag:
 *        - event Transferred(address indexed _by, address indexed _from, address indexed _to, uint256 _value)
 *        - event Approved(address indexed _owner, address indexed _spender, uint256 _oldValue, uint256 _value)
 *        - function increaseAllowance(address _spender, uint256 _value) public returns (bool)
 *        - function decreaseAllowance(address _spender, uint256 _value) public returns (bool)
 *      See: https://ieeexplore.ieee.org/document/8802438
 *      See: https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
 *
 * @author Basil Gorin
 */
contract IlluviumERC20 is AccessControl {
  /**
   * @dev Smart contract unique identifier, a random number
   * @dev Should be regenerated each time smart contact source code is changed
   *      and changes smart contract itself is to be redeployed
   * @dev Generated using https://www.random.org/bytes/
   */
  uint256 public constant TOKEN_UID = 0x83ecb176af7c4f35a45ff0018282e3a05a1018065da866182df12285866f5a2c;

  /**
   * @notice Name of the token: Illuvium
   *
   * @notice ERC20 name of the token (long name)
   *
   * @dev ERC20 `function name() public view returns (string)`
   *
   * @dev Field is declared public: getter name() is created when compiled,
   *      it returns the name of the token.
   */
  string public constant name = "Illuvium";

  /**
   * @notice Symbol of the token: ILV
   *
   * @notice ERC20 symbol of that token (short name)
   *
   * @dev ERC20 `function symbol() public view returns (string)`
   *
   * @dev Field is declared public: getter symbol() is created when compiled,
   *      it returns the symbol of the token
   */
  string public constant symbol = "ILV";

  /**
   * @notice Decimals of the token: 18
   *
   * @dev ERC20 `function decimals() public view returns (uint8)`
   *
   * @dev Field is declared public: getter decimals() is created when compiled,
   *      it returns the number of decimals used to get its user representation.
   *      For example, if `decimals` equals `6`, a balance of `1,500,000` tokens should
   *      be displayed to a user as `1,5` (`1,500,000 / 10 ** 6`).
   *
   * @dev NOTE: This information is only used for _display_ purposes: it in
   *      no way affects any of the arithmetic of the contract, including balanceOf() and transfer().
   */
  uint8 public constant decimals = 18;

  /**
   * @notice Total supply of the token: initially 7,000,000,
   *      with the potential to grow up to 10,000,000 during yield farming period (3 years)
   *
   * @dev ERC20 `function totalSupply() public view returns (uint256)`
   *
   * @dev Field is declared public: getter totalSupply() is created when compiled,
   *      it returns the amount of tokens in existence.
   */
  uint256 public totalSupply; // is set to 7 million * 10^18 in the constructor

  /**
   * @dev A record of all the token balances
   * @dev This mapping keeps record of all token owners:
   *      owner => balance
   */
  mapping(address => uint256) public tokenBalances;

  /**
   * @notice A record of each account's voting delegate
   *
   * @dev Auxiliary data structure used to sum up an account's voting power
   *
   * @dev This mapping keeps record of all voting power delegations:
   *      voting delegator (token owner) => voting delegate
   */
  mapping(address => address) public votingDelegates;

  /**
   * @notice A voting power record binds voting power of a delegate to a particular
   *      block when the voting power delegation change happened
   */
  struct VotingPowerRecord {
    /*
     * @dev block.number when delegation has changed; starting from
     *      that block voting power value is in effect
     */
    uint64 blockNumber;

    /*
     * @dev cumulative voting power a delegate has obtained starting
     *      from the block stored in blockNumber
     */
    uint192 votingPower;
  }

  /**
   * @notice A record of each account's voting power
   *
   * @dev Primarily data structure to store voting power for each account.
   *      Voting power sums up from the account's token balance and delegated
   *      balances.
   *
   * @dev Stores current value and entire history of its changes.
   *      The changes are stored as an array of checkpoints.
   *      Checkpoint is an auxiliary data structure containing voting
   *      power (number of votes) and block number when the checkpoint is saved
   *
   * @dev Maps voting delegate => voting power record
   */
  mapping(address => VotingPowerRecord[]) public votingPowerHistory;

  /**
   * @dev A record of nonces for signing/validating signatures in `delegateWithSig`
   *      for every delegate, increases after successful validation
   *
   * @dev Maps delegate address => delegate nonce
   */
  mapping(address => uint256) public nonces;

  /**
   * @notice A record of all the allowances to spend tokens on behalf
   * @dev Maps token owner address to an address approved to spend
   *      some tokens on behalf, maps approved address to that amount
   * @dev owner => spender => value
   */
  mapping(address => mapping(address => uint256)) public transferAllowances;

  /**
   * @notice Enables ERC20 transfers of the tokens
   *      (transfer by the token owner himself)
   * @dev Feature FEATURE_TRANSFERS must be enabled in order for
   *      `transfer()` function to succeed
   */
  uint32 public constant FEATURE_TRANSFERS = 0x0000_0001;

  /**
   * @notice Enables ERC20 transfers on behalf
   *      (transfer by someone else on behalf of token owner)
   * @dev Feature FEATURE_TRANSFERS_ON_BEHALF must be enabled in order for
   *      `transferFrom()` function to succeed
   * @dev Token owner must call `approve()` first to authorize
   *      the transfer on behalf
   */
  uint32 public constant FEATURE_TRANSFERS_ON_BEHALF = 0x0000_0002;

  /**
   * @dev Defines if the default behavior of `transfer` and `transferFrom`
   *      checks if the receiver smart contract supports ERC20 tokens
   * @dev When feature FEATURE_UNSAFE_TRANSFERS is enabled the transfers do not
   *      check if the receiver smart contract supports ERC20 tokens,
   *      i.e. `transfer` and `transferFrom` behave like `unsafeTransferFrom`
   * @dev When feature FEATURE_UNSAFE_TRANSFERS is disabled (default) the transfers
   *      check if the receiver smart contract supports ERC20 tokens,
   *      i.e. `transfer` and `transferFrom` behave like `safeTransferFrom`
   */
  uint32 public constant FEATURE_UNSAFE_TRANSFERS = 0x0000_0004;

  /**
   * @notice Enables token owners to burn their own tokens,
   *      including locked tokens which are burnt first
   * @dev Feature FEATURE_OWN_BURNS must be enabled in order for
   *      `burn()` function to succeed when called by token owner
   */
  uint32 public constant FEATURE_OWN_BURNS = 0x0000_0008;

  /**
   * @notice Enables approved operators to burn tokens on behalf of their owners,
   *      including locked tokens which are burnt first
   * @dev Feature FEATURE_OWN_BURNS must be enabled in order for
   *      `burn()` function to succeed when called by approved operator
   */
  uint32 public constant FEATURE_BURNS_ON_BEHALF = 0x0000_0010;

  /**
   * @notice Enables delegators to elect delegates
   * @dev Feature FEATURE_DELEGATIONS must be enabled in order for
   *      `delegate()` function to succeed
   */
  uint32 public constant FEATURE_DELEGATIONS = 0x0000_0020;

  /**
   * @notice Enables delegators to elect delegates on behalf
   *      (via an EIP712 signature)
   * @dev Feature FEATURE_DELEGATIONS must be enabled in order for
   *      `delegateWithSig()` function to succeed
   */
  uint32 public constant FEATURE_DELEGATIONS_ON_BEHALF = 0x0000_0040;

  /**
   * @notice Token creator is responsible for creating (minting)
   *      tokens to an arbitrary address
   * @dev Role ROLE_TOKEN_CREATOR allows minting tokens
   *      (calling `mint` function)
   */
  uint32 public constant ROLE_TOKEN_CREATOR = 0x0001_0000;

  /**
   * @notice Token destroyer is responsible for destroying (burning)
   *      tokens owned by an arbitrary address
   * @dev Role ROLE_TOKEN_DESTROYER allows burning tokens
   *      (calling `burn` function)
   */
  uint32 public constant ROLE_TOKEN_DESTROYER = 0x0002_0000;

  /**
   * @notice ERC20 receivers are allowed to receive tokens without ERC20 safety checks,
   *      which may be useful to simplify tokens transfers into "legacy" smart contracts
   * @dev When `FEATURE_UNSAFE_TRANSFERS` is not enabled addresses having
   *      `ROLE_ERC20_RECEIVER` permission are allowed to receive tokens
   *      via `transfer` and `transferFrom` functions in the same way they
   *      would via `unsafeTransferFrom` function
   * @dev When `FEATURE_UNSAFE_TRANSFERS` is enabled `ROLE_ERC20_RECEIVER` permission
   *      doesn't affect the transfer behaviour since
   *      `transfer` and `transferFrom` behave like `unsafeTransferFrom` for any receiver
   * @dev ROLE_ERC20_RECEIVER is a shortening for ROLE_UNSAFE_ERC20_RECEIVER
   */
  uint32 public constant ROLE_ERC20_RECEIVER = 0x0004_0000;

  /**
   * @notice ERC20 senders are allowed to send tokens without ERC20 safety checks,
   *      which may be useful to simplify tokens transfers into "legacy" smart contracts
   * @dev When `FEATURE_UNSAFE_TRANSFERS` is not enabled senders having
   *      `ROLE_ERC20_SENDER` permission are allowed to send tokens
   *      via `transfer` and `transferFrom` functions in the same way they
   *      would via `unsafeTransferFrom` function
   * @dev When `FEATURE_UNSAFE_TRANSFERS` is enabled `ROLE_ERC20_SENDER` permission
   *      doesn't affect the transfer behaviour since
   *      `transfer` and `transferFrom` behave like `unsafeTransferFrom` for any receiver
   * @dev ROLE_ERC20_SENDER is a shortening for ROLE_UNSAFE_ERC20_SENDER
   */
  uint32 public constant ROLE_ERC20_SENDER = 0x0008_0000;

  /**
   * @dev Magic value to be returned by ERC20Receiver upon successful reception of token(s)
   * @dev Equal to `bytes4(keccak256("onERC20Received(address,address,uint256,bytes)"))`,
   *      which can be also obtained as `ERC20Receiver(address(0)).onERC20Received.selector`
   */
  bytes4 private constant ERC20_RECEIVED = 0x4fc35859;

  /**
   * @notice EIP-712 contract's domain typeHash, see https://eips.ethereum.org/EIPS/eip-712#rationale-for-typehash
   */
  bytes32 public constant DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,uint256 chainId,address verifyingContract)");

  /**
   * @notice EIP-712 delegation struct typeHash, see https://eips.ethereum.org/EIPS/eip-712#rationale-for-typehash
   */
  bytes32 public constant DELEGATION_TYPEHASH = keccak256("Delegation(address delegate,uint256 nonce,uint256 expiry)");

  /**
   * @dev Fired in transfer(), transferFrom() and some other (non-ERC20) functions
   *
   * @dev ERC20 `event Transfer(address indexed _from, address indexed _to, uint256 _value)`
   *
   * @param _from an address tokens were consumed from
   * @param _to an address tokens were sent to
   * @param _value number of tokens transferred
   */
  event Transfer(address indexed _from, address indexed _to, uint256 _value);

  /**
   * @dev Fired in approve() and approveAtomic() functions
   *
   * @dev ERC20 `event Approval(address indexed _owner, address indexed _spender, uint256 _value)`
   *
   * @param _owner an address which granted a permission to transfer
   *      tokens on its behalf
   * @param _spender an address which received a permission to transfer
   *      tokens on behalf of the owner `_owner`
   * @param _value amount of tokens granted to transfer on behalf
   */
  event Approval(address indexed _owner, address indexed _spender, uint256 _value);

  /**
   * @dev Fired in mint() function
   *
   * @param _by an address which minted some tokens (transaction sender)
   * @param _to an address the tokens were minted to
   * @param _value an amount of tokens minted
   */
  event Minted(address indexed _by, address indexed _to, uint256 _value);

  /**
   * @dev Fired in burn() function
   *
   * @param _by an address which burned some tokens (transaction sender)
   * @param _from an address the tokens were burnt from
   * @param _value an amount of tokens burnt
   */
  event Burnt(address indexed _by, address indexed _from, uint256 _value);

  /**
   * @dev Resolution for the Multiple Withdrawal Attack on ERC20 Tokens (ISBN:978-1-7281-3027-9)
   *
   * @dev Similar to ERC20 Transfer event, but also logs an address which executed transfer
   *
   * @dev Fired in transfer(), transferFrom() and some other (non-ERC20) functions
   *
   * @param _by an address which performed the transfer
   * @param _from an address tokens were consumed from
   * @param _to an address tokens were sent to
   * @param _value number of tokens transferred
   */
  event Transferred(address indexed _by, address indexed _from, address indexed _to, uint256 _value);

  /**
   * @dev Resolution for the Multiple Withdrawal Attack on ERC20 Tokens (ISBN:978-1-7281-3027-9)
   *
   * @dev Similar to ERC20 Approve event, but also logs old approval value
   *
   * @dev Fired in approve() and approveAtomic() functions
   *
   * @param _owner an address which granted a permission to transfer
   *      tokens on its behalf
   * @param _spender an address which received a permission to transfer
   *      tokens on behalf of the owner `_owner`
   * @param _oldValue previously granted amount of tokens to transfer on behalf
   * @param _value new granted amount of tokens to transfer on behalf
   */
  event Approved(address indexed _owner, address indexed _spender, uint256 _oldValue, uint256 _value);

  /**
   * @dev Notifies that a key-value pair in `votingDelegates` mapping has changed,
   *      i.e. a delegator address has changed its delegate address
   *
   * @param _of delegator address, a token owner
   * @param _from old delegate, an address which delegate right is revoked
   * @param _to new delegate, an address which received the voting power
   */
  event DelegateChanged(address indexed _of, address indexed _from, address indexed _to);

  /**
   * @dev Notifies that a key-value pair in `votingPowerHistory` mapping has changed,
   *      i.e. a delegate's voting power has changed.
   *
   * @param _of delegate whose voting power has changed
   * @param _fromVal previous number of votes delegate had
   * @param _toVal new number of votes delegate has
   */
  event VotingPowerChanged(address indexed _of, uint256 _fromVal, uint256 _toVal);

  /**
   * @dev Deploys the token smart contract,
   *      assigns initial token supply to the address specified
   *
   * @param _initialHolder owner of the initial token supply
   */
  constructor(address _initialHolder) {
    // verify initial holder address non-zero (is set)
    require(_initialHolder != address(0), "_initialHolder not set (zero address)");

    // mint initial supply
    mint(_initialHolder, 7_000_000e18);
  }

  // ===== Start: ERC20/ERC223/ERC777 functions =====

  /**
   * @notice Gets the balance of a particular address
   *
   * @dev ERC20 `function balanceOf(address _owner) public view returns (uint256 balance)`
   *
   * @param _owner the address to query the the balance for
   * @return balance an amount of tokens owned by the address specified
   */
  function balanceOf(address _owner) public view returns (uint256 balance) {
    // read the balance and return
    return tokenBalances[_owner];
  }

  /**
   * @notice Transfers some tokens to an external address or a smart contract
   *
   * @dev ERC20 `function transfer(address _to, uint256 _value) public returns (bool success)`
   *
   * @dev Called by token owner (an address which has a
   *      positive token balance tracked by this smart contract)
   * @dev Throws on any error like
   *      * insufficient token balance or
   *      * incorrect `_to` address:
   *          * zero address or
   *          * self address or
   *          * smart contract which doesn't support ERC20
   *
   * @param _to an address to transfer tokens to,
   *      must be either an external address or a smart contract,
   *      compliant with the ERC20 standard
   * @param _value amount of tokens to be transferred, must
   *      be greater than zero
   * @return success true on success, throws otherwise
   */
  function transfer(address _to, uint256 _value) public returns (bool success) {
    // just delegate call to `transferFrom`,
    // `FEATURE_TRANSFERS` is verified inside it
    return transferFrom(msg.sender, _to, _value);
  }

  /**
   * @notice Transfers some tokens on behalf of address `_from' (token owner)
   *      to some other address `_to`
   *
   * @dev ERC20 `function transferFrom(address _from, address _to, uint256 _value) public returns (bool success)`
   *
   * @dev Called by token owner on his own or approved address,
   *      an address approved earlier by token owner to
   *      transfer some amount of tokens on its behalf
   * @dev Throws on any error like
   *      * insufficient token balance or
   *      * incorrect `_to` address:
   *          * zero address or
   *          * same as `_from` address (self transfer)
   *          * smart contract which doesn't support ERC20
   *
   * @param _from token owner which approved caller (transaction sender)
   *      to transfer `_value` of tokens on its behalf
   * @param _to an address to transfer tokens to,
   *      must be either an external address or a smart contract,
   *      compliant with the ERC20 standard
   * @param _value amount of tokens to be transferred, must
   *      be greater than zero
   * @return success true on success, throws otherwise
   */
  function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
    // depending on `FEATURE_UNSAFE_TRANSFERS` we execute either safe (default)
    // or unsafe transfer
    // if `FEATURE_UNSAFE_TRANSFERS` is enabled
    // or receiver has `ROLE_ERC20_RECEIVER` permission
    // or sender has `ROLE_ERC20_SENDER` permission
    if(isFeatureEnabled(FEATURE_UNSAFE_TRANSFERS)
      || isOperatorInRole(_to, ROLE_ERC20_RECEIVER)
      || isSenderInRole(ROLE_ERC20_SENDER)) {
      // we execute unsafe transfer - delegate call to `unsafeTransferFrom`,
      // `FEATURE_TRANSFERS` is verified inside it
      unsafeTransferFrom(_from, _to, _value);
    }
    // otherwise - if `FEATURE_UNSAFE_TRANSFERS` is disabled
    // and receiver doesn't have `ROLE_ERC20_RECEIVER` permission
    else {
      // we execute safe transfer - delegate call to `safeTransferFrom`, passing empty `_data`,
      // `FEATURE_TRANSFERS` is verified inside it
      safeTransferFrom(_from, _to, _value, "");
    }

    // both `unsafeTransferFrom` and `safeTransferFrom` throw on any error, so
    // if we're here - it means operation successful,
    // just return true
    return true;
  }

  /**
   * @notice Transfers some tokens on behalf of address `_from' (token owner)
   *      to some other address `_to`
   *
   * @dev Inspired by ERC721 safeTransferFrom, this function allows to
   *      send arbitrary data to the receiver on successful token transfer
   * @dev Called by token owner on his own or approved address,
   *      an address approved earlier by token owner to
   *      transfer some amount of tokens on its behalf
   * @dev Throws on any error like
   *      * insufficient token balance or
   *      * incorrect `_to` address:
   *          * zero address or
   *          * same as `_from` address (self transfer)
   *          * smart contract which doesn't support ERC20Receiver interface
   * @dev Returns silently on success, throws otherwise
   *
   * @param _from token owner which approved caller (transaction sender)
   *      to transfer `_value` of tokens on its behalf
   * @param _to an address to transfer tokens to,
   *      must be either an external address or a smart contract,
   *      compliant with the ERC20 standard
   * @param _value amount of tokens to be transferred, must
   *      be greater than zero
   * @param _data [optional] additional data with no specified format,
   *      sent in onERC20Received call to `_to` in case if its a smart contract
   */
  function safeTransferFrom(address _from, address _to, uint256 _value, bytes memory _data) public {
    // first delegate call to `unsafeTransferFrom`
    // to perform the unsafe token(s) transfer
    unsafeTransferFrom(_from, _to, _value);

    // after the successful transfer - check if receiver supports
    // ERC20Receiver and execute a callback handler `onERC20Received`,
    // reverting whole transaction on any error:
    // check if receiver `_to` supports ERC20Receiver interface
    if(AddressUtils.isContract(_to)) {
      // if `_to` is a contract - execute onERC20Received
      bytes4 response = ERC20Receiver(_to).onERC20Received(msg.sender, _from, _value, _data);

      // expected response is ERC20_RECEIVED
      require(response == ERC20_RECEIVED, "invalid onERC20Received response");
    }
  }

  /**
   * @notice Transfers some tokens on behalf of address `_from' (token owner)
   *      to some other address `_to`
   *
   * @dev In contrast to `safeTransferFrom` doesn't check recipient
   *      smart contract to support ERC20 tokens (ERC20Receiver)
   * @dev Designed to be used by developers when the receiver is known
   *      to support ERC20 tokens but doesn't implement ERC20Receiver interface
   * @dev Called by token owner on his own or approved address,
   *      an address approved earlier by token owner to
   *      transfer some amount of tokens on its behalf
   * @dev Throws on any error like
   *      * insufficient token balance or
   *      * incorrect `_to` address:
   *          * zero address or
   *          * same as `_from` address (self transfer)
   * @dev Returns silently on success, throws otherwise
   *
   * @param _from token owner which approved caller (transaction sender)
   *      to transfer `_value` of tokens on its behalf
   * @param _to an address to transfer tokens to,
   *      must be either an external address or a smart contract,
   *      compliant with the ERC20 standard
   * @param _value amount of tokens to be transferred, must
   *      be greater than zero
   */
  function unsafeTransferFrom(address _from, address _to, uint256 _value) public {
    // if `_from` is equal to sender, require transfers feature to be enabled
    // otherwise require transfers on behalf feature to be enabled
    require(_from == msg.sender && isFeatureEnabled(FEATURE_TRANSFERS)
         || _from != msg.sender && isFeatureEnabled(FEATURE_TRANSFERS_ON_BEHALF),
            _from == msg.sender? "transfers are disabled": "transfers on behalf are disabled");

    // non-zero source address check - Zeppelin
    // obviously, zero source address is a client mistake
    // it's not part of ERC20 standard but it's reasonable to fail fast
    // since for zero value transfer transaction succeeds otherwise
    require(_from != address(0), "ERC20: transfer from the zero address"); // Zeppelin msg

    // non-zero recipient address check
    require(_to != address(0), "ERC20: transfer to the zero address"); // Zeppelin msg

    // sender and recipient cannot be the same
    require(_from != _to, "sender and recipient are the same (_from = _to)");

    // sending tokens to the token smart contract itself is a client mistake
    require(_to != address(this), "invalid recipient (transfer to the token smart contract itself)");

    // according to ERC-20 Token Standard, https://eips.ethereum.org/EIPS/eip-20
    // "Transfers of 0 values MUST be treated as normal transfers and fire the Transfer event."
    if(_value == 0) {
      // emit an ERC20 transfer event
      emit Transfer(_from, _to, _value);

      // don't forget to return - we're done
      return;
    }

    // no need to make arithmetic overflow check on the _value - by design of mint()

    // in case of transfer on behalf
    if(_from != msg.sender) {
      // read allowance value - the amount of tokens allowed to transfer - into the stack
      uint256 _allowance = transferAllowances[_from][msg.sender];

      // verify sender has an allowance to transfer amount of tokens requested
      require(_allowance >= _value, "ERC20: transfer amount exceeds allowance"); // Zeppelin msg

      // update allowance value on the stack
      _allowance -= _value;

      // update the allowance value in storage
      transferAllowances[_from][msg.sender] = _allowance;

      // emit an improved atomic approve event
      emit Approved(_from, msg.sender, _allowance + _value, _allowance);

      // emit an ERC20 approval event to reflect the decrease
      emit Approval(_from, msg.sender, _allowance);
    }

    // verify sender has enough tokens to transfer on behalf
    require(tokenBalances[_from] >= _value, "ERC20: transfer amount exceeds balance"); // Zeppelin msg

    // perform the transfer:
    // decrease token owner (sender) balance
    tokenBalances[_from] -= _value;

    // increase `_to` address (receiver) balance
    tokenBalances[_to] += _value;

    // move voting power associated with the tokens transferred
    __moveVotingPower(votingDelegates[_from], votingDelegates[_to], _value);

    // emit an improved transfer event
    emit Transferred(msg.sender, _from, _to, _value);

    // emit an ERC20 transfer event
    emit Transfer(_from, _to, _value);
  }

  /**
   * @notice Approves address called `_spender` to transfer some amount
   *      of tokens on behalf of the owner
   *
   * @dev ERC20 `function approve(address _spender, uint256 _value) public returns (bool success)`
   *
   * @dev Caller must not necessarily own any tokens to grant the permission
   *
   * @param _spender an address approved by the caller (token owner)
   *      to spend some tokens on its behalf
   * @param _value an amount of tokens spender `_spender` is allowed to
   *      transfer on behalf of the token owner
   * @return success true on success, throws otherwise
   */
  function approve(address _spender, uint256 _value) public returns (bool success) {
    // non-zero spender address check - Zeppelin
    // obviously, zero spender address is a client mistake
    // it's not part of ERC20 standard but it's reasonable to fail fast
    require(_spender != address(0), "ERC20: approve to the zero address"); // Zeppelin msg

    // read old approval value to emmit an improved event (ISBN:978-1-7281-3027-9)
    uint256 _oldValue = transferAllowances[msg.sender][_spender];

    // perform an operation: write value requested into the storage
    transferAllowances[msg.sender][_spender] = _value;

    // emit an improved atomic approve event (ISBN:978-1-7281-3027-9)
    emit Approved(msg.sender, _spender, _oldValue, _value);

    // emit an ERC20 approval event
    emit Approval(msg.sender, _spender, _value);

    // operation successful, return true
    return true;
  }

  /**
   * @notice Returns the amount which _spender is still allowed to withdraw from _owner.
   *
   * @dev ERC20 `function allowance(address _owner, address _spender) public view returns (uint256 remaining)`
   *
   * @dev A function to check an amount of tokens owner approved
   *      to transfer on its behalf by some other address called "spender"
   *
   * @param _owner an address which approves transferring some tokens on its behalf
   * @param _spender an address approved to transfer some tokens on behalf
   * @return remaining an amount of tokens approved address `_spender` can transfer on behalf
   *      of token owner `_owner`
   */
  function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
    // read the value from storage and return
    return transferAllowances[_owner][_spender];
  }

  // ===== End: ERC20/ERC223/ERC777 functions =====

  // ===== Start: Resolution for the Multiple Withdrawal Attack on ERC20 Tokens (ISBN:978-1-7281-3027-9) =====

  /**
   * @notice Increases the allowance granted to `spender` by the transaction sender
   *
   * @dev Resolution for the Multiple Withdrawal Attack on ERC20 Tokens (ISBN:978-1-7281-3027-9)
   *
   * @dev Throws if value to increase by is zero or too big and causes arithmetic overflow
   *
   * @param _spender an address approved by the caller (token owner)
   *      to spend some tokens on its behalf
   * @param _value an amount of tokens to increase by
   * @return success true on success, throws otherwise
   */
  function increaseAllowance(address _spender, uint256 _value) public virtual returns (bool) {
    // read current allowance value
    uint256 currentVal = transferAllowances[msg.sender][_spender];

    // non-zero _value and arithmetic overflow check on the allowance
    require(currentVal + _value > currentVal, "zero value approval increase or arithmetic overflow");

    // delegate call to `approve` with the new value
    return approve(_spender, currentVal + _value);
  }

  /**
   * @notice Decreases the allowance granted to `spender` by the caller.
   *
   * @dev Resolution for the Multiple Withdrawal Attack on ERC20 Tokens (ISBN:978-1-7281-3027-9)
   *
   * @dev Throws if value to decrease by is zero or is bigger than currently allowed value
   *
   * @param _spender an address approved by the caller (token owner)
   *      to spend some tokens on its behalf
   * @param _value an amount of tokens to decrease by
   * @return success true on success, throws otherwise
   */
  function decreaseAllowance(address _spender, uint256 _value) public virtual returns (bool) {
    // read current allowance value
    uint256 currentVal = transferAllowances[msg.sender][_spender];

    // non-zero _value check on the allowance
    require(_value > 0, "zero value approval decrease");

    // verify allowance decrease doesn't underflow
    require(currentVal >= _value, "ERC20: decreased allowance below zero");

    // delegate call to `approve` with the new value
    return approve(_spender, currentVal - _value);
  }

  // ===== End: Resolution for the Multiple Withdrawal Attack on ERC20 Tokens (ISBN:978-1-7281-3027-9) =====

  // ===== Start: Minting/burning extension =====

  /**
   * @dev Mints (creates) some tokens to address specified
   * @dev The value specified is treated as is without taking
   *      into account what `decimals` value is
   * @dev Behaves effectively as `mintTo` function, allowing
   *      to specify an address to mint tokens to
   * @dev Requires sender to have `ROLE_TOKEN_CREATOR` permission
   *
   * @dev Throws on overflow, if totalSupply + _value doesn't fit into uint256
   *
   * @param _to an address to mint tokens to
   * @param _value an amount of tokens to mint (create)
   */
  function mint(address _to, uint256 _value) public {
    // check if caller has sufficient permissions to mint tokens
    require(isSenderInRole(ROLE_TOKEN_CREATOR), "insufficient privileges (ROLE_TOKEN_CREATOR required)");

    // non-zero recipient address check
    require(_to != address(0), "ERC20: mint to the zero address"); // Zeppelin msg

    // non-zero _value and arithmetic overflow check on the total supply
    // this check automatically secures arithmetic overflow on the individual balance
    require(totalSupply + _value > totalSupply, "zero value mint or arithmetic overflow");

    // uint192 overflow check (required by voting delegation)
    require(totalSupply + _value <= type(uint192).max, "total supply overflow (uint192)");

    // perform mint:
    // increase total amount of tokens value
    totalSupply += _value;

    // increase `_to` address balance
    tokenBalances[_to] += _value;

    // create voting power associated with the tokens minted
    __moveVotingPower(address(0), votingDelegates[_to], _value);

    // fire a minted event
    emit Minted(msg.sender, _to, _value);

    // emit an improved transfer event
    emit Transferred(msg.sender, address(0), _to, _value);

    // fire ERC20 compliant transfer event
    emit Transfer(address(0), _to, _value);
  }

  /**
   * @dev Burns (destroys) some tokens from the address specified
   * @dev The value specified is treated as is without taking
   *      into account what `decimals` value is
   * @dev Behaves effectively as `burnFrom` function, allowing
   *      to specify an address to burn tokens from
   * @dev Requires sender to have `ROLE_TOKEN_DESTROYER` permission
   *
   * @param _from an address to burn some tokens from
   * @param _value an amount of tokens to burn (destroy)
   */
  function burn(address _from, uint256 _value) public {
    // check if caller has sufficient permissions to burn tokens
    // and if not - check for possibility to burn own tokens or to burn on behalf
    if(!isSenderInRole(ROLE_TOKEN_DESTROYER)) {
      // if `_from` is equal to sender, require own burns feature to be enabled
      // otherwise require burns on behalf feature to be enabled
      require(_from == msg.sender && isFeatureEnabled(FEATURE_OWN_BURNS)
           || _from != msg.sender && isFeatureEnabled(FEATURE_BURNS_ON_BEHALF),
              _from == msg.sender? "burns are disabled": "burns on behalf are disabled");

      // in case of burn on behalf
      if(_from != msg.sender) {
        // read allowance value - the amount of tokens allowed to be burnt - into the stack
        uint256 _allowance = transferAllowances[_from][msg.sender];

        // verify sender has an allowance to burn amount of tokens requested
        require(_allowance >= _value, "ERC20: burn amount exceeds allowance"); // Zeppelin msg

        // update allowance value on the stack
        _allowance -= _value;

        // update the allowance value in storage
        transferAllowances[_from][msg.sender] = _allowance;

        // emit an improved atomic approve event
        emit Approved(msg.sender, _from, _allowance + _value, _allowance);

        // emit an ERC20 approval event to reflect the decrease
        emit Approval(_from, msg.sender, _allowance);
      }
    }

    // at this point we know that either sender is ROLE_TOKEN_DESTROYER or
    // we burn own tokens or on behalf (in latest case we already checked and updated allowances)
    // we have left to execute balance checks and burning logic itself

    // non-zero burn value check
    require(_value != 0, "zero value burn");

    // non-zero source address check - Zeppelin
    require(_from != address(0), "ERC20: burn from the zero address"); // Zeppelin msg

    // verify `_from` address has enough tokens to destroy
    // (basically this is a arithmetic overflow check)
    require(tokenBalances[_from] >= _value, "ERC20: burn amount exceeds balance"); // Zeppelin msg

    // perform burn:
    // decrease `_from` address balance
    tokenBalances[_from] -= _value;

    // decrease total amount of tokens value
    totalSupply -= _value;

    // destroy voting power associated with the tokens burnt
    __moveVotingPower(votingDelegates[_from], address(0), _value);

    // fire a burnt event
    emit Burnt(msg.sender, _from, _value);

    // emit an improved transfer event
    emit Transferred(msg.sender, _from, address(0), _value);

    // fire ERC20 compliant transfer event
    emit Transfer(_from, address(0), _value);
  }

  // ===== End: Minting/burning extension =====

  // ===== Start: DAO Support (Compound-like voting delegation) =====

  /**
   * @notice Gets current voting power of the account `_of`
   * @param _of the address of account to get voting power of
   * @return current cumulative voting power of the account,
   *      sum of token balances of all its voting delegators
   */
  function getVotingPower(address _of) public view returns (uint256) {
    // get a link to an array of voting power history records for an address specified
    VotingPowerRecord[] storage history = votingPowerHistory[_of];

    // lookup the history and return latest element
    return history.length == 0? 0: history[history.length - 1].votingPower;
  }

  /**
   * @notice Gets past voting power of the account `_of` at some block `_blockNum`
   * @dev Throws if `_blockNum` is not in the past (not the finalized block)
   * @param _of the address of account to get voting power of
   * @param _blockNum block number to get the voting power at
   * @return past cumulative voting power of the account,
   *      sum of token balances of all its voting delegators at block number `_blockNum`
   */
  function getVotingPowerAt(address _of, uint256 _blockNum) public view returns (uint256) {
    // make sure block number is not in the past (not the finalized block)
    require(_blockNum < block.number, "not yet determined"); // Compound msg

    // get a link to an array of voting power history records for an address specified
    VotingPowerRecord[] storage history = votingPowerHistory[_of];

    // if voting power history for the account provided is empty
    if(history.length == 0) {
      // than voting power is zero - return the result
      return 0;
    }

    // check latest voting power history record block number:
    // if history was not updated after the block of interest
    if(history[history.length - 1].blockNumber <= _blockNum) {
      // we're done - return last voting power record
      return getVotingPower(_of);
    }

    // check first voting power history record block number:
    // if history was never updated before the block of interest
    if(history[0].blockNumber > _blockNum) {
      // we're done - voting power at the block num of interest was zero
      return 0;
    }

    // `votingPowerHistory[_of]` is an array ordered by `blockNumber`, ascending;
    // apply binary search on `votingPowerHistory[_of]` to find such an entry number `i`, that
    // `votingPowerHistory[_of][i].blockNumber <= _blockNum`, but in the same time
    // `votingPowerHistory[_of][i + 1].blockNumber > _blockNum`
    // return the result - voting power found at index `i`
    return history[__binaryLookup(_of, _blockNum)].votingPower;
  }

  /**
   * @dev Reads an entire voting power history array for the delegate specified
   *
   * @param _of delegate to query voting power history for
   * @return voting power history array for the delegate of interest
   */
  function getVotingPowerHistory(address _of) public view returns(VotingPowerRecord[] memory) {
    // return an entire array as memory
    return votingPowerHistory[_of];
  }

  /**
   * @dev Returns length of the voting power history array for the delegate specified;
   *      useful since reading an entire array just to get its length is expensive (gas cost)
   *
   * @param _of delegate to query voting power history length for
   * @return voting power history array length for the delegate of interest
   */
  function getVotingPowerHistoryLength(address _of) public view returns(uint256) {
    // read array length and return
    return votingPowerHistory[_of].length;
  }

  /**
   * @notice Delegates voting power of the delegator `msg.sender` to the delegate `_to`
   *
   * @dev Accepts zero value address to delegate voting power to, effectively
   *      removing the delegate in that case
   *
   * @param _to address to delegate voting power to
   */
  function delegate(address _to) public {
    // verify delegations are enabled
    require(isFeatureEnabled(FEATURE_DELEGATIONS), "delegations are disabled");
    // delegate call to `__delegate`
    __delegate(msg.sender, _to);
  }

  /**
   * @notice Delegates voting power of the delegator (represented by its signature) to the delegate `_to`
   *
   * @dev Accepts zero value address to delegate voting power to, effectively
   *      removing the delegate in that case
   *
   * @dev Compliant with EIP-712: Ethereum typed structured data hashing and signing,
   *      see https://eips.ethereum.org/EIPS/eip-712
   *
   * @param _to address to delegate voting power to
   * @param _nonce nonce used to construct the signature, and used to validate it;
   *      nonce is increased by one after successful signature validation and vote delegation
   * @param _exp signature expiration time
   * @param v the recovery byte of the signature
   * @param r half of the ECDSA signature pair
   * @param s half of the ECDSA signature pair
   */
  function delegateWithSig(address _to, uint256 _nonce, uint256 _exp, uint8 v, bytes32 r, bytes32 s) public {
    // verify delegations on behalf are enabled
    require(isFeatureEnabled(FEATURE_DELEGATIONS_ON_BEHALF), "delegations on behalf are disabled");

    // build the EIP-712 contract domain separator
    bytes32 domainSeparator = keccak256(abi.encode(DOMAIN_TYPEHASH, keccak256(bytes(name)), block.chainid, address(this)));

    // build the EIP-712 hashStruct of the delegation message
    bytes32 hashStruct = keccak256(abi.encode(DELEGATION_TYPEHASH, _to, _nonce, _exp));

    // calculate the EIP-712 digest "\x19\x01" ‖ domainSeparator ‖ hashStruct(message)
    bytes32 digest = keccak256(abi.encodePacked("\x19\x01", domainSeparator, hashStruct));

    // recover the address who signed the message with v, r, s
    address signer = ecrecover(digest, v, r, s);

    // perform message integrity and security validations
    require(signer != address(0), "invalid signature"); // Compound msg
    require(_nonce == nonces[signer], "invalid nonce"); // Compound msg
    require(block.timestamp < _exp, "signature expired"); // Compound msg

    // update the nonce for that particular signer to avoid replay attack
    nonces[signer]++;

    // delegate call to `__delegate` - execute the logic required
    __delegate(signer, _to);
  }

  /**
   * @dev Auxiliary function to delegate delegator's `_from` voting power to the delegate `_to`
   * @dev Writes to `votingDelegates` and `votingPowerHistory` mappings
   *
   * @param _from delegator who delegates his voting power
   * @param _to delegate who receives the voting power
   */
  function __delegate(address _from, address _to) private {
    // read current delegate to be replaced by a new one
    address _fromDelegate = votingDelegates[_from];

    // read current voting power (it is equal to token balance)
    uint256 _value = tokenBalances[_from];

    // reassign voting delegate to `_to`
    votingDelegates[_from] = _to;

    // update voting power for `_fromDelegate` and `_to`
    __moveVotingPower(_fromDelegate, _to, _value);

    // emit an event
    emit DelegateChanged(_from, _fromDelegate, _to);
  }

  /**
   * @dev Auxiliary function to move voting power `_value`
   *      from delegate `_from` to the delegate `_to`
   *
   * @dev Doesn't have any effect if `_from == _to`, or if `_value == 0`
   *
   * @param _from delegate to move voting power from
   * @param _to delegate to move voting power to
   * @param _value voting power to move from `_from` to `_to`
   */
  function __moveVotingPower(address _from, address _to, uint256 _value) private {
    // if there is no move (`_from == _to`) or there is nothing to move (`_value == 0`)
    if(_from == _to || _value == 0) {
      // return silently with no action
      return;
    }

    // if source address is not zero - decrease its voting power
    if(_from != address(0)) {
      // read current source address voting power
      uint256 _fromVal = getVotingPower(_from);

      // calculate decreased voting power
      // underflow is not possible by design:
      // voting power is limited by token balance which is checked by the callee
      uint256 _toVal = _fromVal - _value;

      // update source voting power from `_fromVal` to `_toVal`
      __updateVotingPower(_from, _fromVal, _toVal);
    }

    // if destination address is not zero - increase its voting power
    if(_to != address(0)) {
      // read current destination address voting power
      uint256 _fromVal = getVotingPower(_to);

      // calculate increased voting power
      // overflow is not possible by design:
      // max token supply limits the cumulative voting power
      uint256 _toVal = _fromVal + _value;

      // update destination voting power from `_fromVal` to `_toVal`
      __updateVotingPower(_to, _fromVal, _toVal);
    }
  }

  /**
   * @dev Auxiliary function to update voting power of the delegate `_of`
   *      from value `_fromVal` to value `_toVal`
   *
   * @param _of delegate to update its voting power
   * @param _fromVal old voting power of the delegate
   * @param _toVal new voting power of the delegate
   */
  function __updateVotingPower(address _of, uint256 _fromVal, uint256 _toVal) private {
    // get a link to an array of voting power history records for an address specified
    VotingPowerRecord[] storage history = votingPowerHistory[_of];

    // if there is an existing voting power value stored for current block
    if(history.length != 0 && history[history.length - 1].blockNumber == block.number) {
      // update voting power which is already stored in the current block
      history[history.length - 1].votingPower = uint192(_toVal);
    }
    // otherwise - if there is no value stored for current block
    else {
      // add new element into array representing the value for current block
      history.push(VotingPowerRecord(uint64(block.number), uint192(_toVal)));
    }

    // emit an event
    emit VotingPowerChanged(_of, _fromVal, _toVal);
  }

  /**
   * @dev Auxiliary function to lookup an element in a sorted (asc) array of elements
   *
   * @dev This function finds the closest element in an array to the value
   *      of interest (not exceeding that value) and returns its index within an array
   *
   * @dev An array to search in is `votingPowerHistory[_to][i].blockNumber`,
   *      it is sorted in ascending order (blockNumber increases)
   *
   * @param _to an address of the delegate to get an array for
   * @param n value of interest to look for
   * @return an index of the closest element in an array to the value
   *      of interest (not exceeding that value)
   */
  function __binaryLookup(address _to, uint256 n) private view returns(uint256) {
    // get a link to an array of voting power history records for an address specified
    VotingPowerRecord[] storage history = votingPowerHistory[_to];

    // left bound of the search interval, originally start of the array
    uint256 i = 0;

    // right bound of the search interval, originally end of the array
    uint256 j = history.length - 1;

    // the iteration process narrows down the bounds by
    // splitting the interval in a half oce per each iteration
    while(j > i) {
      // get an index in the middle of the interval [i, j]
      uint256 k = j - (j - i) / 2;

      // read an element to compare it with the value of interest
      VotingPowerRecord memory cp = history[k];

      // if we've got a strict equal - we're lucky and done
      if(cp.blockNumber == n) {
        // just return the result - index `k`
        return k;
      }
      // if the value of interest is bigger - move left bound to the middle
      else if (cp.blockNumber < n) {
        // move left bound `i` to the middle position `k`
        i = k;
      }
      // otherwise, when the value of interest is smaller - move right bound to the middle
      else {
        // move right bound `j` to the middle position `k - 1`:
        // element at position `k` is bigger and cannot be the result
        j = k - 1;
      }
    }

    // reaching that point means no exact match found
    // since we're interested in the element which is not bigger than the
    // element of interest, we return the lower bound `i`
    return i;
  }
}

// ===== End: DAO Support (Compound-like voting delegation) =====

File 2 of 4 : ERC20Receiver.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.1;

/**
 * @title ERC20 token receiver interface
 *
 * @dev Interface for any contract that wants to support safe transfers
 *      from ERC20 token smart contracts.
 * @dev Inspired by ERC721 and ERC223 token standards
 *
 * @dev See https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md
 * @dev See https://github.com/ethereum/EIPs/issues/223
 *
 * @author Basil Gorin
 */
interface ERC20Receiver {
  /**
   * @notice Handle the receipt of a ERC20 token(s)
   * @dev The ERC20 smart contract calls this function on the recipient
   *      after a successful transfer (`safeTransferFrom`).
   *      This function MAY throw to revert and reject the transfer.
   *      Return of other than the magic value MUST result in the transaction being reverted.
   * @notice The contract address is always the message sender.
   *      A wallet/broker/auction application MUST implement the wallet interface
   *      if it will accept safe transfers.
   * @param _operator The address which called `safeTransferFrom` function
   * @param _from The address which previously owned the token
   * @param _value amount of tokens which is being transferred
   * @param _data additional data with no specified format
   * @return `bytes4(keccak256("onERC20Received(address,address,uint256,bytes)"))` unless throwing
   */
  function onERC20Received(address _operator, address _from, uint256 _value, bytes calldata _data) external returns(bytes4);
}

File 3 of 4 : AccessControl.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.1;

/**
 * @title Access Control List
 *
 * @notice Access control smart contract provides an API to check
 *      if specific operation is permitted globally and/or
 *      if particular user has a permission to execute it.
 *
 * @notice It deals with two main entities: features and roles.
 *
 * @notice Features are designed to be used to enable/disable specific
 *      functions (public functions) of the smart contract for everyone.
 * @notice User roles are designed to restrict access to specific
 *      functions (restricted functions) of the smart contract to some users.
 *
 * @notice Terms "role", "permissions" and "set of permissions" have equal meaning
 *      in the documentation text and may be used interchangeably.
 * @notice Terms "permission", "single permission" implies only one permission bit set.
 *
 * @dev This smart contract is designed to be inherited by other
 *      smart contracts which require access control management capabilities.
 *
 * @author Basil Gorin
 */
contract AccessControl {
  /**
   * @notice Access manager is responsible for assigning the roles to users,
   *      enabling/disabling global features of the smart contract
   * @notice Access manager can add, remove and update user roles,
   *      remove and update global features
   *
   * @dev Role ROLE_ACCESS_MANAGER allows modifying user roles and global features
   * @dev Role ROLE_ACCESS_MANAGER has single bit at position 255 enabled
   */
  uint256 public constant ROLE_ACCESS_MANAGER = 0x8000000000000000000000000000000000000000000000000000000000000000;

  /**
   * @dev Bitmask representing all the possible permissions (super admin role)
   * @dev Has all the bits are enabled (2^256 - 1 value)
   */
  uint256 private constant FULL_PRIVILEGES_MASK = type(uint256).max; // before 0.8.0: uint256(-1) overflows to 0xFFFF...

  /**
   * @notice Privileged addresses with defined roles/permissions
   * @notice In the context of ERC20/ERC721 tokens these can be permissions to
   *      allow minting or burning tokens, transferring on behalf and so on
   *
   * @dev Maps user address to the permissions bitmask (role), where each bit
   *      represents a permission
   * @dev Bitmask 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
   *      represents all possible permissions
   * @dev Zero address mapping represents global features of the smart contract
   */
  mapping(address => uint256) public userRoles;

  /**
   * @dev Fired in updateRole() and updateFeatures()
   *
   * @param _by operator which called the function
   * @param _to address which was granted/revoked permissions
   * @param _requested permissions requested
   * @param _actual permissions effectively set
   */
  event RoleUpdated(address indexed _by, address indexed _to, uint256 _requested, uint256 _actual);

  /**
   * @notice Creates an access control instance,
   *      setting contract creator to have full privileges
   */
  constructor() {
    // contract creator has full privileges
    userRoles[msg.sender] = FULL_PRIVILEGES_MASK;
  }

  /**
   * @notice Retrieves globally set of features enabled
   *
   * @dev Auxiliary getter function to maintain compatibility with previous
   *      versions of the Access Control List smart contract, where
   *      features was a separate uint256 public field
   *
   * @return 256-bit bitmask of the features enabled
   */
  function features() public view returns(uint256) {
    // according to new design features are stored in zero address
    // mapping of `userRoles` structure
    return userRoles[address(0)];
  }

  /**
   * @notice Updates set of the globally enabled features (`features`),
   *      taking into account sender's permissions
   *
   * @dev Requires transaction sender to have `ROLE_ACCESS_MANAGER` permission
   * @dev Function is left for backward compatibility with older versions
   *
   * @param _mask bitmask representing a set of features to enable/disable
   */
  function updateFeatures(uint256 _mask) public {
    // delegate call to `updateRole`
    updateRole(address(0), _mask);
  }

  /**
   * @notice Updates set of permissions (role) for a given user,
   *      taking into account sender's permissions.
   *
   * @dev Setting role to zero is equivalent to removing an all permissions
   * @dev Setting role to `FULL_PRIVILEGES_MASK` is equivalent to
   *      copying senders' permissions (role) to the user
   * @dev Requires transaction sender to have `ROLE_ACCESS_MANAGER` permission
   *
   * @param operator address of a user to alter permissions for or zero
   *      to alter global features of the smart contract
   * @param role bitmask representing a set of permissions to
   *      enable/disable for a user specified
   */
  function updateRole(address operator, uint256 role) public {
    // caller must have a permission to update user roles
    require(isSenderInRole(ROLE_ACCESS_MANAGER), "insufficient privileges (ROLE_ACCESS_MANAGER required)");

    // evaluate the role and reassign it
    userRoles[operator] = evaluateBy(msg.sender, userRoles[operator], role);

    // fire an event
    emit RoleUpdated(msg.sender, operator, role, userRoles[operator]);
  }

  /**
   * @notice Determines the permission bitmask an operator can set on the
   *      target permission set
   * @notice Used to calculate the permission bitmask to be set when requested
   *     in `updateRole` and `updateFeatures` functions
   *
   * @dev Calculated based on:
   *      1) operator's own permission set read from userRoles[operator]
   *      2) target permission set - what is already set on the target
   *      3) desired permission set - what do we want set target to
   *
   * @dev Corner cases:
   *      1) Operator is super admin and its permission set is `FULL_PRIVILEGES_MASK`:
   *        `desired` bitset is returned regardless of the `target` permission set value
   *        (what operator sets is what they get)
   *      2) Operator with no permissions (zero bitset):
   *        `target` bitset is returned regardless of the `desired` value
   *        (operator has no authority and cannot modify anything)
   *
   * @dev Example:
   *      Consider an operator with the permissions bitmask     00001111
   *      is about to modify the target permission set          01010101
   *      Operator wants to set that permission set to          00110011
   *      Based on their role, an operator has the permissions
   *      to update only lowest 4 bits on the target, meaning that
   *      high 4 bits of the target set in this example is left
   *      unchanged and low 4 bits get changed as desired:      01010011
   *
   * @param operator address of the contract operator which is about to set the permissions
   * @param target input set of permissions to operator is going to modify
   * @param desired desired set of permissions operator would like to set
   * @return resulting set of permissions given operator will set
   */
  function evaluateBy(address operator, uint256 target, uint256 desired) public view returns(uint256) {
    // read operator's permissions
    uint256 p = userRoles[operator];

    // taking into account operator's permissions,
    // 1) enable the permissions desired on the `target`
    target |= p & desired;
    // 2) disable the permissions desired on the `target`
    target &= FULL_PRIVILEGES_MASK ^ (p & (FULL_PRIVILEGES_MASK ^ desired));

    // return calculated result
    return target;
  }

  /**
   * @notice Checks if requested set of features is enabled globally on the contract
   *
   * @param required set of features to check against
   * @return true if all the features requested are enabled, false otherwise
   */
  function isFeatureEnabled(uint256 required) public view returns(bool) {
    // delegate call to `__hasRole`, passing `features` property
    return __hasRole(features(), required);
  }

  /**
   * @notice Checks if transaction sender `msg.sender` has all the permissions required
   *
   * @param required set of permissions (role) to check against
   * @return true if all the permissions requested are enabled, false otherwise
   */
  function isSenderInRole(uint256 required) public view returns(bool) {
    // delegate call to `isOperatorInRole`, passing transaction sender
    return isOperatorInRole(msg.sender, required);
  }

  /**
   * @notice Checks if operator has all the permissions (role) required
   *
   * @param operator address of the user to check role for
   * @param required set of permissions (role) to check
   * @return true if all the permissions requested are enabled, false otherwise
   */
  function isOperatorInRole(address operator, uint256 required) public view returns(bool) {
    // delegate call to `__hasRole`, passing operator's permissions (role)
    return __hasRole(userRoles[operator], required);
  }

  /**
   * @dev Checks if role `actual` contains all the permissions required `required`
   *
   * @param actual existent role
   * @param required required role
   * @return true if actual has required role (all permissions), false otherwise
   */
  function __hasRole(uint256 actual, uint256 required) internal pure returns(bool) {
    // check the bitmask for the role required and return the result
    return actual & required == required;
  }
}

File 4 of 4 : AddressUtils.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.1;

/**
 * @title Address Utils
 *
 * @dev Utility library of inline functions on addresses
 *
 * @author Basil Gorin
 */
library AddressUtils {

  /**
   * @notice Checks if the target address is a contract
   * @dev This function will return false if invoked during the constructor of a contract,
   *      as the code is not actually created until after the constructor finishes.
   * @param addr address to check
   * @return whether the target address is a contract
   */
  function isContract(address addr) internal view returns (bool) {
    // a variable to load `extcodesize` to
    uint256 size = 0;

    // XXX Currently there is no better way to check if there is a contract in an address
    // than to check the size of the code at that address.
    // See https://ethereum.stackexchange.com/a/14016/36603 for more details about how this works.
    // TODO: Check this again before the Serenity release, because all addresses will be contracts.
    // solium-disable-next-line security/no-inline-assembly
    assembly {
      // retrieve the size of the code at address `addr`
      size := extcodesize(addr)
    }

    // positive size indicates a smart contract address
    return size > 0;
  }

}

Settings
{
  "remappings": [],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "evmVersion": "istanbul",
  "libraries": {},
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  }
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_initialHolder","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_owner","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_owner","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_oldValue","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Approved","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_by","type":"address"},{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Burnt","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_of","type":"address"},{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"}],"name":"DelegateChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_by","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Minted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_by","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_requested","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_actual","type":"uint256"}],"name":"RoleUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_by","type":"address"},{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Transferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_of","type":"address"},{"indexed":false,"internalType":"uint256","name":"_fromVal","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_toVal","type":"uint256"}],"name":"VotingPowerChanged","type":"event"},{"inputs":[],"name":"DELEGATION_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DOMAIN_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"FEATURE_BURNS_ON_BEHALF","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"FEATURE_DELEGATIONS","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"FEATURE_DELEGATIONS_ON_BEHALF","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"FEATURE_OWN_BURNS","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"FEATURE_TRANSFERS","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"FEATURE_TRANSFERS_ON_BEHALF","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"FEATURE_UNSAFE_TRANSFERS","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ROLE_ACCESS_MANAGER","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ROLE_ERC20_RECEIVER","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ROLE_ERC20_SENDER","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ROLE_TOKEN_CREATOR","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ROLE_TOKEN_DESTROYER","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"TOKEN_UID","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"},{"internalType":"address","name":"_spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"remaining","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"balance","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"}],"name":"delegate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_nonce","type":"uint256"},{"internalType":"uint256","name":"_exp","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"delegateWithSig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"uint256","name":"target","type":"uint256"},{"internalType":"uint256","name":"desired","type":"uint256"}],"name":"evaluateBy","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"features","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_of","type":"address"}],"name":"getVotingPower","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_of","type":"address"},{"internalType":"uint256","name":"_blockNum","type":"uint256"}],"name":"getVotingPowerAt","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_of","type":"address"}],"name":"getVotingPowerHistory","outputs":[{"components":[{"internalType":"uint64","name":"blockNumber","type":"uint64"},{"internalType":"uint192","name":"votingPower","type":"uint192"}],"internalType":"struct IlluviumERC20.VotingPowerRecord[]","name":"","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_of","type":"address"}],"name":"getVotingPowerHistoryLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"required","type":"uint256"}],"name":"isFeatureEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"uint256","name":"required","type":"uint256"}],"name":"isOperatorInRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"required","type":"uint256"}],"name":"isSenderInRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"tokenBalances","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"transferAllowances","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"unsafeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_mask","type":"uint256"}],"name":"updateFeatures","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"uint256","name":"role","type":"uint256"}],"name":"updateRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"userRoles","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"votingDelegates","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"votingPowerHistory","outputs":[{"internalType":"uint64","name":"blockNumber","type":"uint64"},{"internalType":"uint192","name":"votingPower","type":"uint192"}],"stateMutability":"view","type":"function"}]

60806040523480156200001157600080fd5b506040516200326e3803806200326e8339810160408190526200003491620005d1565b33600090815260208190526040902060001990556001600160a01b0381166200007a5760405162461bcd60e51b8152600401620000719062000631565b60405180910390fd5b62000091816a05ca4ec2a79a7f6700000062000098565b50620007b2565b620000a662010000620002bd565b620000c55760405162461bcd60e51b8152600401620000719062000676565b6001600160a01b038216620000ee5760405162461bcd60e51b8152600401620000719062000719565b600154620000fd828262000767565b116200011d5760405162461bcd60e51b81526004016200007190620006d3565b6001546001600160c01b03906200013690839062000767565b1115620001575760405162461bcd60e51b81526004016200007190620005fa565b80600160008282546200016b919062000767565b90915550506001600160a01b038216600090815260026020526040812080548392906200019a90849062000767565b90915550506001600160a01b03808316600090815260036020526040812054620001c6921683620002d1565b816001600160a01b0316336001600160a01b03167f9d228d69b5fdb8d273a2336f8fb8612d039631024ea9bf09c424a9503aa078f0836040516200020b919062000750565b60405180910390a3816001600160a01b031660006001600160a01b0316336001600160a01b03167f769254a71d2f67d8ac6cb44f2803c0d05cfbcf9effadb6a984f10ff9de3df6c38460405162000263919062000750565b60405180910390a4816001600160a01b031660006001600160a01b03167fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef83604051620002b1919062000750565b60405180910390a35050565b6000620002cb33836200037f565b92915050565b816001600160a01b0316836001600160a01b03161480620002f0575080155b15620002fc576200037a565b6001600160a01b038316156200033b5760006200031984620003ab565b9050600062000329838362000782565b90506200033885838362000436565b50505b6001600160a01b038216156200037a5760006200035883620003ab565b9050600062000368838362000767565b90506200037784838362000436565b50505b505050565b6001600160a01b038216600090815260208190526040812054620003a49083620005ca565b9392505050565b6001600160a01b0381166000908152600460205260408120805415620004235780548190620003dd9060019062000782565b81548110620003fc57634e487b7160e01b600052603260045260246000fd5b6000918252602090912001546801000000000000000090046001600160c01b031662000426565b60005b6001600160c01b03169392505050565b6001600160a01b0383166000908152600460205260409020805415801590620004a457508054439082906200046e9060019062000782565b815481106200048d57634e487b7160e01b600052603260045260246000fd5b6000918252602090912001546001600160401b0316145b156200051457805482908290620004be9060019062000782565b81548110620004dd57634e487b7160e01b600052603260045260246000fd5b9060005260206000200160000160086101000a8154816001600160c01b0302191690836001600160c01b031602179055506200057f565b604080518082019091526001600160401b0343811682526001600160c01b0380851660208085019182528554600181018755600087815291909120945194018054915190921668010000000000000000029383166001600160401b0319909116179091169190911790555b836001600160a01b03167f53ed7954de66613e30dd29b46ab783aa594e6309d021d8854c76bb3325d03aa38484604051620005bc92919062000759565b60405180910390a250505050565b9081161490565b600060208284031215620005e3578081fd5b81516001600160a01b0381168114620003a4578182fd5b6020808252601f908201527f746f74616c20737570706c79206f766572666c6f77202875696e743139322900604082015260600190565b60208082526025908201527f5f696e697469616c486f6c646572206e6f742073657420287a65726f20616464604082015264726573732960d81b606082015260800190565b60208082526035908201527f696e73756666696369656e742070726976696c656765732028524f4c455f544f60408201527f4b454e5f43524541544f52207265717569726564290000000000000000000000606082015260800190565b60208082526026908201527f7a65726f2076616c7565206d696e74206f722061726974686d65746963206f766040820152656572666c6f7760d01b606082015260800190565b6020808252601f908201527f45524332303a206d696e7420746f20746865207a65726f206164647265737300604082015260600190565b90815260200190565b918252602082015260400190565b600082198211156200077d576200077d6200079c565b500190565b6000828210156200079757620007976200079c565b500390565b634e487b7160e01b600052601160045260246000fd5b612aac80620007c26000396000f3fe608060405234801561001057600080fd5b50600436106102bb5760003560e01c806384b34a3111610182578063c0d6568d116100e9578063e62cac76116100a2578063eaeded5f1161007c578063eaeded5f146105ba578063f63c2f82146105cd578063f822d5aa146105d5578063fcc2c078146105e8576102bb565b8063e62cac76146105a2578063e7a324dc146105aa578063e98f5ba7146105b2576102bb565b8063c0d6568d14610539578063c5ff500c14610541578063c688d69314610549578063ce9517cf1461055c578063d5bb7f671461057c578063dd62ed3e1461058f576102bb565b8063a457c2d71161013b578063a457c2d7146104d2578063a9059cbb146104e5578063ae5b102e146104f8578063ae682e2e1461050b578063b88d4fde14610513578063bb4d443614610526576102bb565b806384b34a311461048c5780638a114e131461049f5780638d4e57e6146104a75780638f6fba8c146104af57806395d89b41146104b75780639dc29fac146104bf576102bb565b8063395093511161022657806363152a50116101df57806363152a501461040c57806370a082311461041f578063725f36261461043257806374d5e100146104455780637ecebe00146104585780637fd491b01461046b576102bb565b806339509351146103a55780633e9c5f7e146103b857806340c10f19146103c0578063523fba7f146103d357806359b961ef146103e65780635c19a95c146103f9576102bb565b80631e0fa234116102785780631e0fa2341461034557806320606b701461036557806323b872dd1461036d5780632b521416146103805780632d4c39ea14610388578063313ce56714610390576102bb565b806306fdde03146102c0578063095ea7b3146102de57806315d2c225146102fe57806318160ddd146103135780631993f554146103285780631a0b04ea1461033d575b600080fd5b6102c86105fb565b6040516102d591906122e4565b60405180910390f35b6102f16102ec366004612058565b61061f565b6040516102d5919061226a565b61031161030c3660046120b3565b61070f565b005b61031b610950565b6040516102d59190612275565b610330610956565b6040516102d5919061297e565b61033061095b565b610358610353366004611efc565b610960565b6040516102d591906121b7565b61031b61097b565b6102f161037b366004611f48565b61099f565b61031b610a0a565b610330610a37565b610398610a3c565b6040516102d591906129b2565b6102f16103b3366004612058565b610a41565b610330610aa3565b6103116103ce366004612058565b610aa8565b61031b6103e1366004611efc565b610c9d565b6103116103f4366004611f48565b610caf565b610311610407366004611efc565b6110e3565b61031b61041a366004611f16565b611116565b61031b61042d366004611efc565b611133565b6102f1610440366004612139565b611152565b61031b610453366004611efc565b611165565b61031b610466366004611efc565b611177565b61047e610479366004612058565b611189565b6040516102d592919061298f565b61031b61049a366004611efc565b6111d3565b61031b6111ee565b610330611212565b610330611219565b6102c861121e565b6103116104cd366004612058565b61123d565b6102f16104e0366004612058565b6115f6565b6102f16104f3366004612058565b611665565b610311610506366004612058565b611679565b61031b611717565b610311610521366004611f83565b61171f565b61031b610534366004611efc565b6117f9565b61033061187a565b61033061187f565b6102f1610557366004612058565b611886565b61056f61056a366004611efc565b6118a9565b6040516102d59190612208565b61031161058a366004612139565b61193c565b61031b61059d366004611f16565b611947565b610330611972565b61031b611979565b61033061199d565b61031b6105c8366004612058565b6119a4565b610330611ade565b61031b6105e3366004612081565b611ae3565b6102f16105f6366004612139565b611b0e565b60405180604001604052806008815260200167496c6c757669756d60c01b81525081565b60006001600160a01b0383166106505760405162461bcd60e51b8152600401610647906123de565b60405180910390fd5b3360008181526006602090815260408083206001600160a01b0388168085529252918290208054908690559151919290917f71594b34a69973da9bff6f72cc0aad2c51069b6b8e9c70c0648b58d10d7bd84b906106b09085908890612970565b60405180910390a3836001600160a01b0316336001600160a01b03167f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925856040516106fb9190612275565b60405180910390a360019150505b92915050565b6107196040611152565b6107355760405162461bcd60e51b815260040161064790612420565b6040805180820182526008815267496c6c757669756d60c01b60209182015290516000916107ab917f8cad95687ba82c2ce50e74f7b754645e5117c3a5bec8151c0726d5857980a866917f084f3cb87ea0c76a68af7707db457f95657fddc1db6e742f190166dbdd3d5b849146913091016122a2565b60405160208183030381529060405280519060200120905060007fff41620983935eb4d4a3c7384a066ca8c1d10cef9a5eca9eb97ca735cd14a7558888886040516020016107fc949392919061227e565b6040516020818303038152906040528051906020012090506000828260405160200161082992919061219c565b60405160208183030381529060405280519060200120905060006001828888886040516000815260200160405260405161086694939291906122c6565b6020604051602081039080840390855afa158015610888573d6000803e3d6000fd5b5050604051601f1901519150506001600160a01b0381166108bb5760405162461bcd60e51b81526004016106479061233a565b6001600160a01b03811660009081526005602052604090205489146108f25760405162461bcd60e51b815260040161064790612531565b8742106109115760405162461bcd60e51b8152600401610647906128c9565b6001600160a01b038116600090815260056020526040812080549161093583612a0f565b9190505550610944818b611b1a565b50505050505050505050565b60015481565b600481565b600881565b6003602052600090815260409020546001600160a01b031681565b7f8cad95687ba82c2ce50e74f7b754645e5117c3a5bec8151c0726d5857980a86681565b60006109ab6004611152565b806109be57506109be8362040000611886565b806109d057506109d062080000611b0e565b156109e5576109e0848484610caf565b610a00565b610a008484846040518060200160405280600081525061171f565b5060019392505050565b60008080526020527fad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb55490565b604081565b601281565b3360009081526006602090815260408083206001600160a01b038616845290915281205480610a7084826129c0565b11610a8d5760405162461bcd60e51b8152600401610647906125d6565b610a9b846102ec85846129c0565b949350505050565b602081565b610ab462010000611b0e565b610ad05760405162461bcd60e51b815260040161064790612558565b6001600160a01b038216610af65760405162461bcd60e51b815260040161064790612939565b600154610b0382826129c0565b11610b205760405162461bcd60e51b8152600401610647906126a8565b6001546001600160c01b0390610b379083906129c0565b1115610b555760405162461bcd60e51b8152600401610647906123a7565b8060016000828254610b6791906129c0565b90915550506001600160a01b03821660009081526002602052604081208054839290610b949084906129c0565b90915550506001600160a01b03808316600090815260036020526040812054610bbe921683611bb5565b816001600160a01b0316336001600160a01b03167f9d228d69b5fdb8d273a2336f8fb8612d039631024ea9bf09c424a9503aa078f083604051610c019190612275565b60405180910390a3816001600160a01b031660006001600160a01b0316336001600160a01b03167f769254a71d2f67d8ac6cb44f2803c0d05cfbcf9effadb6a984f10ff9de3df6c384604051610c579190612275565b60405180910390a4816001600160a01b031660006001600160a01b0316600080516020612a5783398151915283604051610c919190612275565b60405180910390a35050565b60026020526000908152604090205481565b6001600160a01b03831633148015610ccc5750610ccc6001611152565b80610cf057506001600160a01b0383163314801590610cf05750610cf06002611152565b6001600160a01b0384163314610d3b576040518060400160405280602081526020017f7472616e7366657273206f6e20626568616c66206172652064697361626c6564815250610d6b565b604051806040016040528060168152602001751d1c985b9cd9995c9cc8185c9948191a5cd8589b195960521b8152505b90610d895760405162461bcd60e51b815260040161064791906122e4565b506001600160a01b038316610db05760405162461bcd60e51b815260040161064790612773565b6001600160a01b038216610dd65760405162461bcd60e51b8152600401610647906122f7565b816001600160a01b0316836001600160a01b03161415610e085760405162461bcd60e51b81526004016106479061287a565b6001600160a01b038216301415610e315760405162461bcd60e51b815260040161064790612462565b80610e7457816001600160a01b0316836001600160a01b0316600080516020612a5783398151915283604051610e679190612275565b60405180910390a36110de565b6001600160a01b0383163314610f8b576001600160a01b038316600090815260066020908152604080832033845290915290205481811015610ec85760405162461bcd60e51b815260040161064790612660565b610ed282826129f8565b6001600160a01b03851660008181526006602090815260408083203380855292529091208390559192507f71594b34a69973da9bff6f72cc0aad2c51069b6b8e9c70c0648b58d10d7bd84b610f2785856129c0565b84604051610f36929190612970565b60405180910390a3336001600160a01b0316846001600160a01b03167f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b92583604051610f819190612275565b60405180910390a3505b6001600160a01b038316600090815260026020526040902054811115610fc35760405162461bcd60e51b8152600401610647906124eb565b6001600160a01b03831660009081526002602052604081208054839290610feb9084906129f8565b90915550506001600160a01b038216600090815260026020526040812080548392906110189084906129c0565b90915550506001600160a01b0380841660009081526003602052604080822054858416835291205461104f92918216911683611bb5565b816001600160a01b0316836001600160a01b0316336001600160a01b03167f769254a71d2f67d8ac6cb44f2803c0d05cfbcf9effadb6a984f10ff9de3df6c38460405161109c9190612275565b60405180910390a4816001600160a01b0316836001600160a01b0316600080516020612a57833981519152836040516110d59190612275565b60405180910390a35b505050565b6110ed6020611152565b6111095760405162461bcd60e51b815260040161064790612843565b6111133382611b1a565b50565b600660209081526000928352604080842090915290825290205481565b6001600160a01b0381166000908152600260205260409020545b919050565b600061070961115f610a0a565b83611c4a565b60006020819052908152604090205481565b60056020526000908152604090205481565b600460205281600052604060002081815481106111a557600080fd5b60009182526020909120015467ffffffffffffffff81169250600160401b90046001600160c01b0316905082565b6001600160a01b031660009081526004602052604090205490565b7f83ecb176af7c4f35a45ff0018282e3a05a1018065da866182df12285866f5a2c81565b6201000081565b600281565b6040518060400160405280600381526020016224a62b60e91b81525081565b61124962020000611b0e565b61143c576001600160a01b0382163314801561126a575061126a6008611152565b8061128e57506001600160a01b038216331480159061128e575061128e6010611152565b6001600160a01b03831633146112d9576040518060400160405280601c81526020017f6275726e73206f6e20626568616c66206172652064697361626c656400000000815250611305565b60405180604001604052806012815260200171189d5c9b9cc8185c9948191a5cd8589b195960721b8152505b906113235760405162461bcd60e51b815260040161064791906122e4565b506001600160a01b038216331461143c576001600160a01b0382166000908152600660209081526040808320338452909152902054818110156113785760405162461bcd60e51b8152600401610647906126ee565b61138282826129f8565b6001600160a01b0384166000818152600660209081526040808320338085529252909120839055919250907f71594b34a69973da9bff6f72cc0aad2c51069b6b8e9c70c0648b58d10d7bd84b6113d885856129c0565b846040516113e7929190612970565b60405180910390a3336001600160a01b0316836001600160a01b03167f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925836040516114329190612275565b60405180910390a3505b806114595760405162461bcd60e51b8152600401610647906125ad565b6001600160a01b03821661147f5760405162461bcd60e51b815260040161064790612732565b6001600160a01b0382166000908152600260205260409020548111156114b75760405162461bcd60e51b815260040161064790612365565b6001600160a01b038216600090815260026020526040812080548392906114df9084906129f8565b9250508190555080600160008282546114f891906129f8565b90915550506001600160a01b0380831660009081526003602052604081205461152392169083611bb5565b816001600160a01b0316336001600160a01b03167fe8a89cc6e5096f9d9f43de82c077c1f4cfe707c0e0c2032176c68813b9ae6a5c836040516115669190612275565b60405180910390a360006001600160a01b0316826001600160a01b0316336001600160a01b03167f769254a71d2f67d8ac6cb44f2803c0d05cfbcf9effadb6a984f10ff9de3df6c3846040516115bc9190612275565b60405180910390a460006001600160a01b0316826001600160a01b0316600080516020612a5783398151915283604051610c919190612275565b3360009081526006602090815260408083206001600160a01b0386168452909152812054826116375760405162461bcd60e51b815260040161064790612629565b828110156116575760405162461bcd60e51b8152600401610647906128f4565b610a9b846102ec85846129f8565b600061167233848461099f565b9392505050565b611686600160ff1b611b0e565b6116a25760405162461bcd60e51b8152600401610647906127b8565b6001600160a01b0382166000908152602081905260409020546116c790339083611ae3565b6001600160a01b0383166000818152602081905260409081902083905551909133917f5a10526456f5116c0b7b80582c217d666243fd51b6a2d92c8011e601c2462e5f91610c9191869190612970565b600160ff1b81565b61172a848484610caf565b61173383611c51565b156117f357604051634fc3585960e01b81526000906001600160a01b03851690634fc358599061176d9033908990889088906004016121cb565b602060405180830381600087803b15801561178757600080fd5b505af115801561179b573d6000803e3d6000fd5b505050506040513d601f19601f820116820180604052508101906117bf9190612111565b90506001600160e01b03198116634fc3585960e01b146117f15760405162461bcd60e51b81526004016106479061280e565b505b50505050565b6001600160a01b03811660009081526004602052604081208054156118675780548190611828906001906129f8565b8154811061184657634e487b7160e01b600052603260045260246000fd5b600091825260209091200154600160401b90046001600160c01b031661186a565b60005b6001600160c01b03169392505050565b600181565b6204000081565b6001600160a01b0382166000908152602081905260408120546116729083611c4a565b6001600160a01b0381166000908152600460209081526040808320805482518185028101850190935280835260609492939192909184015b82821015611931576000848152602090819020604080518082019091529084015467ffffffffffffffff81168252600160401b90046001600160c01b0316818301528252600190920191016118e1565b505050509050919050565b611113600082611679565b6001600160a01b03918216600090815260066020908152604080832093909416825291909152205490565b6202000081565b7fff41620983935eb4d4a3c7384a066ca8c1d10cef9a5eca9eb97ca735cd14a75581565b6208000081565b60004382106119c55760405162461bcd60e51b8152600401610647906124bf565b6001600160a01b038316600090815260046020526040902080546119ed576000915050610709565b8054839082906119ff906001906129f8565b81548110611a1d57634e487b7160e01b600052603260045260246000fd5b60009182526020909120015467ffffffffffffffff1611611a4957611a41846117f9565b915050610709565b8281600081548110611a6b57634e487b7160e01b600052603260045260246000fd5b60009182526020909120015467ffffffffffffffff161115611a91576000915050610709565b80611a9c8585611c57565b81548110611aba57634e487b7160e01b600052603260045260246000fd5b600091825260209091200154600160401b90046001600160c01b0316949350505050565b601081565b6001600160a01b03929092166000908152602081905260409020546000198084188216189216171690565b60006107093383611886565b6001600160a01b0380831660009081526003602081815260408084208054600284529190942054929091528484166001600160a01b0319821617909255911690611b65828483611bb5565b826001600160a01b0316826001600160a01b0316856001600160a01b03167f3134e8a2e6d97e929a7e54011ea5485d7d196dd5f0ba4d4ef95803e8e3fc257f60405160405180910390a450505050565b816001600160a01b0316836001600160a01b03161480611bd3575080155b15611bdd576110de565b6001600160a01b03831615611c15576000611bf7846117f9565b90506000611c0583836129f8565b9050611c12858383611d5e565b50505b6001600160a01b038216156110de576000611c2f836117f9565b90506000611c3d83836129c0565b90506117f1848383611d5e565b9081161490565b3b151590565b6001600160a01b0382166000908152600460205260408120805482908190611c81906001906129f8565b90505b81811115611d555760006002611c9a84846129f8565b611ca491906129d8565b611cae90836129f8565b90506000848281548110611cd257634e487b7160e01b600052603260045260246000fd5b60009182526020918290206040805180820190915291015467ffffffffffffffff8116808352600160401b9091046001600160c01b0316928201929092529150871415611d255750935061070992505050565b805167ffffffffffffffff16871115611d4057819350611d4e565b611d4b6001836129f8565b92505b5050611c84565b50949350505050565b6001600160a01b0383166000908152600460205260409020805415801590611dc95750805443908290611d93906001906129f8565b81548110611db157634e487b7160e01b600052603260045260246000fd5b60009182526020909120015467ffffffffffffffff16145b15611e3457805482908290611de0906001906129f8565b81548110611dfe57634e487b7160e01b600052603260045260246000fd5b9060005260206000200160000160086101000a8154816001600160c01b0302191690836001600160c01b03160217905550611e9c565b6040805180820190915267ffffffffffffffff43811682526001600160c01b03808516602080850191825285546001810187556000878152919091209451940180549151909216600160401b0293831667ffffffffffffffff19909116179091169190911790555b836001600160a01b03167f53ed7954de66613e30dd29b46ab783aa594e6309d021d8854c76bb3325d03aa38484604051611ed7929190612970565b60405180910390a250505050565b80356001600160a01b038116811461114d57600080fd5b600060208284031215611f0d578081fd5b61167282611ee5565b60008060408385031215611f28578081fd5b611f3183611ee5565b9150611f3f60208401611ee5565b90509250929050565b600080600060608486031215611f5c578081fd5b611f6584611ee5565b9250611f7360208501611ee5565b9150604084013590509250925092565b60008060008060808587031215611f98578081fd5b611fa185611ee5565b9350611faf60208601611ee5565b925060408501359150606085013567ffffffffffffffff80821115611fd2578283fd5b818701915087601f830112611fe5578283fd5b813581811115611ff757611ff7612a40565b604051601f8201601f19908116603f0116810190838211818310171561201f5761201f612a40565b816040528281528a6020848701011115612037578586fd5b82602086016020830137918201602001949094529598949750929550505050565b6000806040838503121561206a578182fd5b61207383611ee5565b946020939093013593505050565b600080600060608486031215612095578283fd5b61209e84611ee5565b95602085013595506040909401359392505050565b60008060008060008060c087890312156120cb578182fd5b6120d487611ee5565b95506020870135945060408701359350606087013560ff811681146120f7578283fd5b9598949750929560808101359460a0909101359350915050565b600060208284031215612122578081fd5b81516001600160e01b031981168114611672578182fd5b60006020828403121561214a578081fd5b5035919050565b60008151808452815b818110156121765760208185018101518683018201520161215a565b818111156121875782602083870101525b50601f01601f19169290920160200192915050565b61190160f01b81526002810192909252602282015260420190565b6001600160a01b0391909116815260200190565b6001600160a01b03858116825284166020820152604081018390526080606082018190526000906121fe90830184612151565b9695505050505050565b602080825282518282018190526000919060409081850190868401855b8281101561225d578151805167ffffffffffffffff1685528601516001600160c01b0316868501529284019290850190600101612225565b5091979650505050505050565b901515815260200190565b90815260200190565b9384526001600160a01b039290921660208401526040830152606082015260800190565b938452602084019290925260408301526001600160a01b0316606082015260800190565b93845260ff9290921660208401526040830152606082015260800190565b6000602082526116726020830184612151565b60208082526023908201527f45524332303a207472616e7366657220746f20746865207a65726f206164647260408201526265737360e81b606082015260800190565b602080825260119082015270696e76616c6964207369676e617475726560781b604082015260600190565b60208082526022908201527f45524332303a206275726e20616d6f756e7420657863656564732062616c616e604082015261636560f01b606082015260800190565b6020808252601f908201527f746f74616c20737570706c79206f766572666c6f77202875696e743139322900604082015260600190565b60208082526022908201527f45524332303a20617070726f766520746f20746865207a65726f206164647265604082015261737360f01b606082015260800190565b60208082526022908201527f64656c65676174696f6e73206f6e20626568616c66206172652064697361626c604082015261195960f21b606082015260800190565b6020808252603f908201527f696e76616c696420726563697069656e7420287472616e7366657220746f207460408201527f686520746f6b656e20736d61727420636f6e747261637420697473656c662900606082015260800190565b6020808252601290820152711b9bdd081e595d0819195d195c9b5a5b995960721b604082015260600190565b60208082526026908201527f45524332303a207472616e7366657220616d6f756e7420657863656564732062604082015265616c616e636560d01b606082015260800190565b6020808252600d908201526c696e76616c6964206e6f6e636560981b604082015260600190565b60208082526035908201527f696e73756666696369656e742070726976696c656765732028524f4c455f544f6040820152744b454e5f43524541544f522072657175697265642960581b606082015260800190565b6020808252600f908201526e3d32b937903b30b63ab290313ab93760891b604082015260600190565b60208082526033908201527f7a65726f2076616c756520617070726f76616c20696e637265617365206f722060408201527261726974686d65746963206f766572666c6f7760681b606082015260800190565b6020808252601c908201527f7a65726f2076616c756520617070726f76616c20646563726561736500000000604082015260600190565b60208082526028908201527f45524332303a207472616e7366657220616d6f756e74206578636565647320616040820152676c6c6f77616e636560c01b606082015260800190565b60208082526026908201527f7a65726f2076616c7565206d696e74206f722061726974686d65746963206f766040820152656572666c6f7760d01b606082015260800190565b60208082526024908201527f45524332303a206275726e20616d6f756e74206578636565647320616c6c6f77604082015263616e636560e01b606082015260800190565b60208082526021908201527f45524332303a206275726e2066726f6d20746865207a65726f206164647265736040820152607360f81b606082015260800190565b60208082526025908201527f45524332303a207472616e736665722066726f6d20746865207a65726f206164604082015264647265737360d81b606082015260800190565b60208082526036908201527f696e73756666696369656e742070726976696c656765732028524f4c455f4143604082015275434553535f4d414e414745522072657175697265642960501b606082015260800190565b6020808252818101527f696e76616c6964206f6e4552433230526563656976656420726573706f6e7365604082015260600190565b60208082526018908201527f64656c65676174696f6e73206172652064697361626c65640000000000000000604082015260600190565b6020808252602f908201527f73656e64657220616e6420726563697069656e7420617265207468652073616d60408201526e6520285f66726f6d203d205f746f2960881b606082015260800190565b6020808252601190820152701cda59db985d1d5c9948195e1c1a5c9959607a1b604082015260600190565b60208082526025908201527f45524332303a2064656372656173656420616c6c6f77616e63652062656c6f77604082015264207a65726f60d81b606082015260800190565b6020808252601f908201527f45524332303a206d696e7420746f20746865207a65726f206164647265737300604082015260600190565b918252602082015260400190565b63ffffffff91909116815260200190565b67ffffffffffffffff9290921682526001600160c01b0316602082015260400190565b60ff91909116815260200190565b600082198211156129d3576129d3612a2a565b500190565b6000826129f357634e487b7160e01b81526012600452602481fd5b500490565b600082821015612a0a57612a0a612a2a565b500390565b6000600019821415612a2357612a23612a2a565b5060010190565b634e487b7160e01b600052601160045260246000fd5b634e487b7160e01b600052604160045260246000fdfeddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3efa2646970667358221220701652e56e5ffab9394a937aa8c35ffe5fb8928e3ef71e105a5e99193547509d64736f6c634300080100330000000000000000000000000691f5804d4227925f19b031821b530b48fff38f

Deployed Bytecode

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

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

0000000000000000000000000691f5804d4227925f19b031821b530b48fff38f

-----Decoded View---------------
Arg [0] : _initialHolder (address): 0x0691f5804d4227925F19b031821b530b48FFf38f

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000000691f5804d4227925f19b031821b530b48fff38f


Loading...
Loading
Loading...
Loading
[ Download: CSV Export  ]
[ Download: CSV Export  ]

A token is a representation of an on-chain or off-chain asset. The token page shows information such as price, total supply, holders, transfers and social links. Learn more about this page in our Knowledge Base.