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Contract

0x1961B3331969eD52770751fC718ef530838b6dEE
 
Transaction Hash
Method
Block
From
To
Approve210707852024-10-29 10:46:1136 hrs ago1730198771IN
BitDegree: BDG Token
0 ETH0.000201497.64327631
Transfer209311782024-10-09 22:58:5921 days ago1728514739IN
BitDegree: BDG Token
0 ETH0.00048249.28583549
Transfer209245862024-10-09 0:56:4721 days ago1728435407IN
BitDegree: BDG Token
0 ETH0.0013058725.13083952
Transfer209057872024-10-06 10:02:5924 days ago1728208979IN
BitDegree: BDG Token
0 ETH0.000266457.69068751
Transfer208635652024-09-30 12:47:3530 days ago1727700455IN
BitDegree: BDG Token
0 ETH0.0003829610.97725529
Transfer208452692024-09-27 23:32:3532 days ago1727479955IN
BitDegree: BDG Token
0 ETH0.000407497.84746805
Transfer208083242024-09-22 19:51:2338 days ago1727034683IN
BitDegree: BDG Token
0 ETH0.000512759.86763036
Approve207264642024-09-11 9:25:4749 days ago1726046747IN
BitDegree: BDG Token
0 ETH0.000134752.77000763
Approve207239192024-09-11 0:53:5949 days ago1726016039IN
BitDegree: BDG Token
0 ETH0.000205774.23515901
Transfer206570902024-09-01 17:03:1159 days ago1725210191IN
BitDegree: BDG Token
0 ETH0.000051560.99265604
Approve206113242024-08-26 7:38:1165 days ago1724657891IN
BitDegree: BDG Token
0 ETH0.000039660.81979905
Approve205780482024-08-21 15:59:4770 days ago1724255987IN
BitDegree: BDG Token
0 ETH0.000228844.70998505
Approve204857572024-08-08 18:47:3583 days ago1723142855IN
BitDegree: BDG Token
0 ETH0.000236594.89976293
Transfer204532792024-08-04 6:04:5987 days ago1722751499IN
BitDegree: BDG Token
0 ETH0.000054361
Transfer204530372024-08-04 5:16:2387 days ago1722748583IN
BitDegree: BDG Token
0 ETH0.000054361
Transfer204530122024-08-04 5:11:2387 days ago1722748283IN
BitDegree: BDG Token
0 ETH0.000054351
Approve203727902024-07-24 0:22:5998 days ago1721780579IN
BitDegree: BDG Token
0 ETH0.000089991.85
Approve203072142024-07-14 20:44:59108 days ago1720989899IN
BitDegree: BDG Token
0 ETH0.000098762.03025201
Transfer203072062024-07-14 20:43:23108 days ago1720989803IN
BitDegree: BDG Token
0 ETH0.000100191.76479974
Approve203025302024-07-14 5:03:47108 days ago1720933427IN
BitDegree: BDG Token
0 ETH0.000126832.61046618
Transfer203021132024-07-14 3:39:47108 days ago1720928387IN
BitDegree: BDG Token
0 ETH0.000074772.14473288
Transfer203021092024-07-14 3:38:59108 days ago1720928339IN
BitDegree: BDG Token
0 ETH0.000075082.15360557
Transfer203021082024-07-14 3:38:47108 days ago1720928327IN
BitDegree: BDG Token
0 ETH0.000076232.18667964
Transfer202970322024-07-13 10:36:47109 days ago1720867007IN
BitDegree: BDG Token
0 ETH0.00006241.78880831
Transfer202970312024-07-13 10:36:35109 days ago1720866995IN
BitDegree: BDG Token
0 ETH0.000098621.8974703
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Contract Source Code Verified (Exact Match)

Contract Name:
BitDegreeToken

Compiler Version
v0.4.18+commit.9cf6e910

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2017-11-30
*/

pragma solidity ^0.4.18;

/**
 * @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;
    }
}

/**
 * @title ERC20Basic
 * @dev Simpler version of ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/179
 */
contract ERC20Basic {
    uint256 public totalSupply;
    function balanceOf(address who) public view returns (uint256);
    function transfer(address to, uint256 value) public returns (bool);
    event Transfer(address indexed from, address indexed to, uint256 value);
}

/**
 * @title ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/20
 */
contract ERC20 is ERC20Basic {
    function allowance(address owner, address spender) public view returns (uint256);
    function transferFrom(address from, address to, uint256 value) public returns (bool);
    function approve(address spender, uint256 value) public returns (bool);
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

/**
 * @title Basic token
 * @dev Basic version of StandardToken, with no allowances.
 */
contract BasicToken is ERC20Basic {
    using SafeMath for uint256;

    mapping(address => uint256) balances;

    /**
    * @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, uint256 _value) public returns (bool) {
        require(_to != address(0));
        require(_value <= balances[msg.sender]);

        // SafeMath.sub will throw if there is not enough balance.
        balances[msg.sender] = balances[msg.sender].sub(_value);
        balances[_to] = balances[_to].add(_value);
        Transfer(msg.sender, _to, _value);
        return true;
    }

    /**
    * @dev Gets the balance of the specified address.
    * @param _owner The address to query the the balance of.
    * @return An uint256 representing the amount owned by the passed address.
    */
    function balanceOf(address _owner) public view returns (uint256 balance) {
        return balances[_owner];
    }

}

/**
 * @title Standard ERC20 token
 *
 * @dev Implementation of the basic standard token.
 * @dev https://github.com/ethereum/EIPs/issues/20
 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
 */
contract StandardToken is ERC20, BasicToken {

    mapping (address => mapping (address => uint256)) internal allowed;


    /**
     * @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 uint256 the amount of tokens to be transferred
     */
    function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
        require(_to != address(0));
        require(_value <= balances[_from]);
        require(_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);
        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. 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) {
        allowed[msg.sender][_spender] = _value;
        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 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];
    }

    /**
     * approve should be called when allowed[_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
     */
    function increaseApproval(address _spender, uint _addedValue) public returns (bool) {
        allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
        Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
        return true;
    }

    function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) {
        uint oldValue = allowed[msg.sender][_spender];
        if (_subtractedValue > oldValue) {
            allowed[msg.sender][_spender] = 0;
        } else {
            allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
        }
        Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
        return true;
    }

}

/**
 * @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.
     */
    function Ownable() 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));
        OwnershipTransferred(owner, newOwner);
        owner = newOwner;
    }

}

/**
 * @title Pausable
 * @dev Base contract which allows children to implement an emergency stop mechanism.
 */
contract Pausable is Ownable {
    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;
        Pause();
    }

    /**
     * @dev called by the owner to unpause, returns to normal state
     */
    function unpause() onlyOwner whenPaused public {
        paused = false;
        Unpause();
    }
}

/**
 * @title Pausable token
 *
 * @dev StandardToken modified with pausable transfers.
 **/
contract PausableToken is StandardToken, Pausable {

    function transfer(address _to, uint256 _value) public whenNotPaused returns (bool) {
        return super.transfer(_to, _value);
    }

    function transferFrom(address _from, address _to, uint256 _value) public whenNotPaused returns (bool) {
        return super.transferFrom(_from, _to, _value);
    }

    function approve(address _spender, uint256 _value) public whenNotPaused returns (bool) {
        return super.approve(_spender, _value);
    }

    function increaseApproval(address _spender, uint _addedValue) public whenNotPaused returns (bool success) {
        return super.increaseApproval(_spender, _addedValue);
    }

    function decreaseApproval(address _spender, uint _subtractedValue) public whenNotPaused returns (bool success) {
        return super.decreaseApproval(_spender, _subtractedValue);
    }
}


contract BitDegreeToken is PausableToken {
    string public constant name = "BitDegree Token";
    string public constant symbol = "BDG";
    uint8 public constant decimals = 18;

    uint256 private constant TOKEN_UNIT = 10 ** uint256(decimals);

    uint256 public constant totalSupply = 660000000 * TOKEN_UNIT;
    uint256 public constant publicAmount = 336600000 * TOKEN_UNIT; // Tokens for public

    uint public startTime;
    address public crowdsaleAddress;

    struct TokenLock { uint256 amount; uint duration; bool withdrawn; }

    TokenLock public foundationLock = TokenLock({
        amount: 66000000 * TOKEN_UNIT,
        duration: 360 days,
        withdrawn: false
    });

    TokenLock public teamLock = TokenLock({
        amount: 66000000 * TOKEN_UNIT,
        duration: 720 days,
        withdrawn: false
    });

    TokenLock public advisorLock = TokenLock({
        amount: 13200000 * TOKEN_UNIT,
        duration: 160 days,
        withdrawn: false
    });

    function BitDegreeToken() public {
        startTime = now + 70 days;

        balances[owner] = totalSupply;
        Transfer(address(0), owner, balances[owner]);

        lockTokens(foundationLock);
        lockTokens(teamLock);
        lockTokens(advisorLock);
    }

    function setCrowdsaleAddress(address _crowdsaleAddress) external onlyOwner {
        crowdsaleAddress = _crowdsaleAddress;
        assert(approve(crowdsaleAddress, publicAmount));
    }

    function withdrawLocked() external onlyOwner {
        if(unlockTokens(foundationLock)) foundationLock.withdrawn = true;
        if(unlockTokens(teamLock)) teamLock.withdrawn = true;
        if(unlockTokens(advisorLock)) advisorLock.withdrawn = true;
    }

    function lockTokens(TokenLock lock) internal {
        balances[owner] = balances[owner].sub(lock.amount);
        balances[address(0)] = balances[address(0)].add(lock.amount);
        Transfer(owner, address(0), lock.amount);
    }

    function unlockTokens(TokenLock lock) internal returns (bool) {
        uint lockReleaseTime = startTime + lock.duration;

        if(lockReleaseTime < now && lock.withdrawn == false) {
            balances[owner] = balances[owner].add(lock.amount);
            balances[address(0)] = balances[address(0)].sub(lock.amount);
            Transfer(address(0), owner, lock.amount);
            return true;
        }

        return false;
    }

    function setStartTime(uint _startTime) external {
        require(msg.sender == crowdsaleAddress);
        if(_startTime < startTime) {
            startTime = _startTime;
        }
    }

    function transfer(address _to, uint _value) public returns (bool) {
        // Only possible after ICO ends
        require(now >= startTime);

        return super.transfer(_to, _value);
    }

    function transferFrom(address _from, address _to, uint _value) public returns (bool) {
        // Only owner's tokens can be transferred before ICO ends
        if (now < startTime)
            require(_from == owner);

        return super.transferFrom(_from, _to, _value);
    }

    function transferOwnership(address newOwner) public onlyOwner {
        require(now >= startTime);
        super.transferOwnership(newOwner);
    }
}

Contract Security Audit

Contract ABI

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Swarm Source

bzzr://fb9b03732be0e133318fb6017842b223d9ff612f0a3b8a76a55da61644388e7d

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