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ERC-20
Land
Overview
Max Total Supply
1,000,000,000 HRBE
Holders
2,259 (0.00%)
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
HarambeeToken
Compiler Version
v0.4.24+commit.e67f0147
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2018-09-05 */ pragma solidity 0.4.24; /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; assert(c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } /** * * This contract is used to set admin to the contract which has some additional features such as minting , burning etc * */ contract Owned { address public owner; constructor() public { owner = msg.sender; } modifier onlyOwner { require(msg.sender == owner); _; } /* This function is used to transfer adminship to new owner * @param _newOwner - address of new admin or owner */ function transferOwnership(address _newOwner) onlyOwner public { require(_newOwner != address(0)); owner = _newOwner; } } /** * @title Pausable * @dev Base contract which allows children to implement an emergency stop mechanism. */ contract Pausable is Owned { event Pause(); event Unpause(); bool public paused = false; /** * @dev Modifier to make a function callable only when the contract is not paused. */ modifier whenNotPaused() { require(!paused); _; } /** * @dev Modifier to make a function callable only when the contract is paused. */ modifier whenPaused() { require(paused); _; } /** * @dev called by the owner to pause, triggers stopped state */ function pause() onlyOwner whenNotPaused public { paused = true; emit Pause(); } /** * @dev called by the owner to unpause, returns to normal state */ function unpause() onlyOwner whenPaused public { paused = false; emit Unpause(); } } /** * This is base ERC20 Contract , basically ERC-20 defines a common list of rules for all Ethereum tokens to follow */ contract ERC20 is Pausable{ using SafeMath for uint256; //This creates an array with all balances mapping (address => uint256) public balanceOf; mapping (address => mapping (address => uint256)) public allowed; // public variables of the token string public name; string public symbol; uint8 public decimals = 18; uint256 public totalSupply; // This notifies client about the approval done by owner to spender for a given value event Approval(address indexed owner, address indexed spender, uint256 value); // This notifies client about the approval done event Transfer(address indexed from, address indexed to, uint256 value); constructor (uint256 _initialSupply,string _tokenName, string _tokenSymbol) public { totalSupply = _initialSupply * 10 ** uint256(decimals); // Update total supply with the decimal amount balanceOf[msg.sender] = totalSupply; name = _tokenName; symbol = _tokenSymbol; } /* This function is used to transfer tokens to a particular address * @param _to receiver address where transfer is to be done * @param _value value to be transferred */ function transfer(address _to, uint256 _value) public whenNotPaused returns (bool) { require(balanceOf[msg.sender] > 0); require(balanceOf[msg.sender] >= _value); // Check if the sender has enough require(_to != address(0)); // Prevent transfer to 0x0 address. Use burn() instead require(_value > 0); require(_to != msg.sender); // Check if sender and receiver is not same balanceOf[msg.sender] = balanceOf[msg.sender].sub(_value); // Subtract value from sender balanceOf[_to] = balanceOf[_to].add(_value); // Add the value to the receiver emit Transfer(msg.sender, _to, _value); // Notify all clients about the transfer events return true; } /* Send _value amount of tokens from address _from to address _to * The transferFrom method is used for a withdraw workflow, allowing contracts to send * tokens on your behalf * @param _from address from which amount is to be transferred * @param _to address to which amount is transferred * @param _amount to which amount is transferred */ function transferFrom( address _from, address _to, uint256 _amount ) public whenNotPaused returns (bool success) { require(balanceOf[_from] >= _amount); require(allowed[_from][msg.sender] >= _amount); require(_amount > 0); require(_to != address(0)); require(_from!=_to); balanceOf[_from] = balanceOf[_from].sub(_amount); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_amount); balanceOf[_to] = balanceOf[_to].add(_amount); emit Transfer(_from, _to, _amount); return true; } /* This function allows _spender to withdraw from your account, multiple times, up to the _value amount. * If this function is called again it overwrites the current allowance with _value. * @param _spender address of the spender * @param _amount amount allowed to be withdrawal */ function approve(address _spender, uint256 _amount) public whenNotPaused returns (bool success) { require(msg.sender!=_spender); allowed[msg.sender][_spender] = _amount; emit Approval(msg.sender, _spender, _amount); return true; } /* This function returns the amount of tokens approved by the owner that can be * transferred to the spender's account * @param _owner address of the owner * @param _spender address of the spender */ function allowance(address _owner, address _spender) public constant returns (uint256 remaining) { return allowed[_owner][_spender]; } } //This is the Main Harambee Token Contract derived from the other two contracts Owned and ERC20 contract HarambeeToken is Owned, ERC20 { using SafeMath for uint256; uint256 public tokenSupply = 1000000000; // This notifies clients about the amount burnt , only admin is able to burn the contract event Burn(address from, uint256 value); /* This is the main Token Constructor */ constructor() ERC20 (tokenSupply,"Harambee","HRBE") public { owner = msg.sender; } /** * This function Burns a specific amount of tokens. * @param _value The amount of token to be burned. */ function burn(uint256 _value) public onlyOwner { require(_value <= balanceOf[msg.sender]); // no need to require value <= totalSupply, since that would imply the // sender's balance is greater than the totalSupply, which *should* be an assertion failure address burner = msg.sender; balanceOf[burner] = balanceOf[burner].sub(_value); totalSupply = totalSupply.sub(_value); emit Burn(burner, _value); } /** * This function is used to destroy the contract */ function destroyContract() public onlyOwner{ selfdestruct(owner); } }
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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Swarm Source
bzzr://08ecb0cc34da94fc5153ceaba3b0f715d2bdcbd8808bf72351bccc8936b58490
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