Address Contract Partially Verified
Address
0x4Eeea7B48b9C3ac8F70a9c932A8B1E8a5CB624c7
Balance
0 ETH
Nonce
1
Code Size
6851 bytes
Creator
0x5d667C9e...9409 at tx 0x88dd3b15...68c17c
Indexed Transactions
0
Contract Bytecode
6851 bytes
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Verified Source Code Partial Match
Compiler: v0.5.6+commit.b259423e
EVM: petersburg
Optimization: No
.sol 437 lines
pragma solidity 0.5.6;
library SafeMath {
/**
* @dev Multiplies two unsigned integers, reverts on overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b);
return c;
}
/**
* @dev Integer division of two unsigned integers truncating the quotient, reverts on division by zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Subtracts two unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a);
uint256 c = a - b;
return c;
}
/**
* @dev Adds two unsigned integers, reverts on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a);
return c;
}
/**
* @dev Divides two unsigned integers and returns the remainder (unsigned integer modulo),
* reverts when dividing by zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b != 0);
return a % b;
}
}
interface IERC20 {
function transfer(address to, uint256 value) external returns (bool);
function approve(address spender, uint256 value) external returns (bool);
function transferFrom(address from, address to, uint256 value) external returns (bool);
function totalSupply() external view returns (uint256);
function balanceOf(address who) external view returns (uint256);
function allowance(address owner, address spender) external view returns (uint256);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
contract ERC20 is IERC20 {
using SafeMath for uint256;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowed;
uint256 private _totalSupply;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
/**
* @dev Gets the balance of the specified address.
* @param owner The address to query the balance of.
* @return A uint256 representing the amount owned by the passed address.
*/
function balanceOf(address owner) public view returns (uint256) {
return _balances[owner];
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param owner address The address which owns the funds.
* @param spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(address owner, address spender) public view returns (uint256) {
return _allowed[owner][spender];
}
/**
* @dev Transfer token to a specified address
* @param to The address to transfer to.
* @param value The amount to be transferred.
*/
function transfer(address to, uint256 value) public returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param spender The address which will spend the funds.
* @param value The amount of tokens to be spent.
*/
function approve(address spender, uint256 value) public returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
/**
* @dev Transfer tokens from one address to another.
* Note that while this function emits an Approval event, this is not required as per the specification,
* and other compliant implementations may not emit the event.
* @param from address The address which you want to send tokens from
* @param to address The address which you want to transfer to
* @param value uint256 the amount of tokens to be transferred
*/
function transferFrom(address from, address to, uint256 value) public returns (bool) {
_transfer(from, to, value);
_approve(from, msg.sender, _allowed[from][msg.sender].sub(value));
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a spender.
* approve should be called when _allowed[msg.sender][spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param addedValue The amount of tokens to increase the allowance by.
*/
function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
_approve(msg.sender, spender, _allowed[msg.sender][spender].add(addedValue));
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when _allowed[msg.sender][spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
_approve(msg.sender, spender, _allowed[msg.sender][spender].sub(subtractedValue));
return true;
}
/**
* @dev Transfer token for a specified addresses
* @param from The address to transfer from.
* @param to The address to transfer to.
* @param value The amount to be transferred.
*/
function _transfer(address from, address to, uint256 value) internal {
require(to != address(0));
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
}
/**
* @dev Internal function that mints an amount of the token and assigns it to
* an account. This encapsulates the modification of balances such that the
* proper events are emitted.
* @param account The account that will receive the created tokens.
* @param value The amount that will be created.
*/
function _mint(address account, uint256 value) internal {
require(account != address(0));
_totalSupply = _totalSupply.add(value);
_balances[account] = _balances[account].add(value);
emit Transfer(address(0), account, value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account.
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burn(address account, uint256 value) internal {
require(account != address(0));
_totalSupply = _totalSupply.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
}
/**
* @dev Approve an address to spend another addresses' tokens.
* @param owner The address that owns the tokens.
* @param spender The address that will spend the tokens.
* @param value The number of tokens that can be spent.
*/
function _approve(address owner, address spender, uint256 value) internal {
require(spender != address(0));
require(owner != address(0));
_allowed[owner][spender] = value;
emit Approval(owner, spender, value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account, deducting from the sender's allowance for said account. Uses the
* internal burn function.
* Emits an Approval event (reflecting the reduced allowance).
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burnFrom(address account, uint256 value) internal {
_burn(account, value);
_approve(account, msg.sender, _allowed[account][msg.sender].sub(value));
}
}
contract IERC20Releasable {
function release() public;
}
contract IOwnable {
function isOwner(address who)
public view returns(bool);
function _isOwner(address)
internal view returns(bool);
}
contract SingleOwner is IOwnable {
address public owner;
constructor(
address _owner
)
internal
{
require(_owner != address(0), 'owner_req');
owner = _owner;
emit OwnershipTransferred(address(0), owner);
}
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
modifier ownerOnly() {
require(msg.sender == owner, 'owner_access');
_;
}
function _isOwner(address _sender)
internal
view
returns(bool)
{
return owner == _sender;
}
function isOwner(address _sender)
public
view
returns(bool)
{
return _isOwner(_sender);
}
function setOwner(address _owner)
public
ownerOnly
{
address prevOwner = owner;
owner = _owner;
emit OwnershipTransferred(owner, prevOwner);
}
}
contract Privileged {
/// List of privileged users who can transfer token before release
mapping(address => bool) privileged;
function isPrivileged(address _addr)
public
view
returns(bool)
{
return privileged[_addr];
}
function _setPrivileged(address _addr)
internal
{
require(_addr != address(0), 'addr_req');
privileged[_addr] = true;
}
function _setUnprivileged(address _addr)
internal
{
privileged[_addr] = false;
}
}
contract IToken is IERC20, IERC20Releasable, IOwnable {}
contract MBN is IToken, ERC20, SingleOwner, Privileged {
string public name = 'Membrana';
string public symbol = 'MBN';
uint8 public decimals = 18;
bool public isReleased;
uint public releaseDate;
constructor(address _owner)
public
SingleOwner(_owner)
{
super._mint(owner, 1000000000 * 10 ** 18);
}
// Modifiers
modifier releasedOnly() {
require(isReleased, 'released_only');
_;
}
modifier notReleasedOnly() {
require(! isReleased, 'not_released_only');
_;
}
modifier releasedOrPrivilegedOnly() {
require(isReleased || isPrivileged(msg.sender), 'released_or_privileged_only');
_;
}
// Methods
function transfer(address to, uint256 value)
public
releasedOrPrivilegedOnly
returns (bool)
{
return super.transfer(to, value);
}
function transferFrom(address from, address to, uint256 value)
public
releasedOnly
returns (bool)
{
return super.transferFrom(from, to, value);
}
function approve(address spender, uint256 value)
public
releasedOnly
returns (bool)
{
return super.approve(spender, value);
}
function increaseAllowance(address spender, uint addedValue)
public
releasedOnly
returns (bool)
{
return super.increaseAllowance(spender, addedValue);
}
function decreaseAllowance(address spender, uint subtractedValue)
public
releasedOnly
returns (bool)
{
return super.decreaseAllowance(spender, subtractedValue);
}
function release()
public
ownerOnly
notReleasedOnly
{
isReleased = true;
releaseDate = now;
}
function setPrivileged(address _addr)
public
ownerOnly
{
_setPrivileged(_addr);
}
function setUnprivileged(address _addr)
public
ownerOnly
{
_setUnprivileged(_addr);
}
}
Read Contract
allowance 0xdd62ed3e → uint256
balanceOf 0x70a08231 → uint256
decimals 0x313ce567 → uint8
isOwner 0x2f54bf6e → bool
isPrivileged 0x2e2326d5 → bool
isReleased 0xfa2a8997 → bool
name 0x06fdde03 → string
owner 0x8da5cb5b → address
releaseDate 0xb9e3e2db → uint256
symbol 0x95d89b41 → string
totalSupply 0x18160ddd → uint256
Write Contract 9 functions
These functions modify contract state and require a wallet transaction to execute.
approve 0x095ea7b3
address spender
uint256 value
returns: bool
decreaseAllowance 0xa457c2d7
address spender
uint256 subtractedValue
returns: bool
increaseAllowance 0x39509351
address spender
uint256 addedValue
returns: bool
release 0x86d1a69f
No parameters
setOwner 0x13af4035
address _owner
setPrivileged 0x2ecace9c
address _addr
setUnprivileged 0x1987cd86
address _addr
transfer 0xa9059cbb
address to
uint256 value
returns: bool
transferFrom 0x23b872dd
address from
address to
uint256 value
returns: bool
Token Balances (1)
View Transfers →Recent Transactions
No transactions found for this address