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ERC-20
Overview
Max Total Supply
1,000,000,000 IONC
Holders
1,074
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 6 Decimals)
Balance
20,023 IONCValue
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
IonChain
Compiler Version
v0.4.24+commit.e67f0147
Optimization Enabled:
Yes with 500 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2018-05-25 */ pragma solidity 0.4.24; // File: contracts/commons/SafeMath.sol /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; assert(c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a / b; return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } // File: contracts/flavours/Ownable.sol /** * @title Ownable * @dev The Ownable contract has an owner address, and provides basic authorization control * functions, this simplifies the implementation of "user permissions". */ contract Ownable { address public owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. */ constructor() public { owner = msg.sender; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(msg.sender == owner); _; } /** * @dev Allows the current owner to transfer control of the contract to a newOwner. * @param newOwner The address to transfer ownership to. */ function transferOwnership(address newOwner) public onlyOwner { require(newOwner != address(0)); emit OwnershipTransferred(owner, newOwner); owner = newOwner; } } // File: contracts/flavours/Lockable.sol /** * @title Lockable * @dev Base contract which allows children to * implement main operations locking mechanism. */ contract Lockable is Ownable { event Lock(); event Unlock(); bool public locked = false; /** * @dev Modifier to make a function callable * only when the contract is not locked. */ modifier whenNotLocked() { require(!locked); _; } /** * @dev Modifier to make a function callable * only when the contract is locked. */ modifier whenLocked() { require(locked); _; } /** * @dev called by the owner to locke, triggers locked state */ function lock() public onlyOwner whenNotLocked { locked = true; emit Lock(); } /** * @dev called by the owner * to unlock, returns to unlocked state */ function unlock() public onlyOwner whenLocked { locked = false; emit Unlock(); } } // File: contracts/base/BaseFixedERC20Token.sol contract BaseFixedERC20Token is Lockable { using SafeMath for uint; /// @dev ERC20 Total supply uint public totalSupply; mapping(address => uint) public balances; mapping(address => mapping(address => uint)) private allowed; /// @dev Fired if token is transferred according to ERC20 spec event Transfer(address indexed from, address indexed to, uint value); /// @dev Fired if token withdrawal is approved according to ERC20 spec event Approval(address indexed owner, address indexed spender, uint value); /** * @dev Gets the balance of the specified address * @param owner_ The address to query the the balance of * @return An uint representing the amount owned by the passed address */ function balanceOf(address owner_) public view returns (uint balance) { return balances[owner_]; } /** * @dev Transfer token for a specified address * @param to_ The address to transfer to. * @param value_ The amount to be transferred. */ function transfer(address to_, uint value_) public whenNotLocked returns (bool) { require(to_ != address(0) && value_ <= balances[msg.sender]); // SafeMath.sub will throw an exception if there is not enough balance balances[msg.sender] = balances[msg.sender].sub(value_); balances[to_] = balances[to_].add(value_); emit Transfer(msg.sender, to_, value_); return true; } /** * @dev Transfer tokens from one address to another * @param from_ address The address which you want to send tokens from * @param to_ address The address which you want to transfer to * @param value_ uint the amount of tokens to be transferred */ function transferFrom(address from_, address to_, uint value_) public whenNotLocked returns (bool) { require(to_ != address(0) && value_ <= balances[from_] && value_ <= allowed[from_][msg.sender]); balances[from_] = balances[from_].sub(value_); balances[to_] = balances[to_].add(value_); allowed[from_][msg.sender] = allowed[from_][msg.sender].sub(value_); emit Transfer(from_, to_, value_); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender * * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering * * To change the approve amount you first have to reduce the addresses * allowance to zero by calling `approve(spender_, 0)` if it is not * already 0 to mitigate the race condition described in: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * @param spender_ The address which will spend the funds. * @param value_ The amount of tokens to be spent. */ function approve(address spender_, uint value_) public whenNotLocked returns (bool) { if (value_ != 0 && allowed[msg.sender][spender_] != 0) { revert(); } allowed[msg.sender][spender_] = value_; emit Approval(msg.sender, spender_, value_); return true; } /** * @dev Function to check the amount of tokens that an owner allowed to a spender * @param owner_ address The address which owns the funds * @param spender_ address The address which will spend the funds * @return A uint specifying the amount of tokens still available for the spender */ function allowance(address owner_, address spender_) public view returns (uint) { return allowed[owner_][spender_]; } } // File: contracts/IonChain.sol /** * @title IONC token contract. */ contract IonChain is BaseFixedERC20Token { using SafeMath for uint; string public constant name = "IonChain"; string public constant symbol = "IONC"; uint8 public constant decimals = 6; uint internal constant ONE_TOKEN = 1e6; constructor(uint totalSupplyTokens_) public { locked = false; totalSupply = totalSupplyTokens_ * ONE_TOKEN; address creator = msg.sender; balances[creator] = totalSupply; emit Transfer(0, this, totalSupply); emit Transfer(this, creator, balances[creator]); } // Disable direct payments function() external payable { revert(); } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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Contract Creation Code
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Deployed Bytecode
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000000000000000000000000000000000003b9aca00
-----Decoded View---------------
Arg [0] : totalSupplyTokens_ (uint256): 1000000000
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000000000000000000000000000000000003b9aca00
Swarm Source
bzzr://c4ceba836c3f2f196b37871bde2890a83d00910860754f96fa4e4bd9db18072c
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