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Contract

0x4E053ac1F6F34A73F5Bbd876eFd20525EAcB5382
 

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From
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Claim External209602612024-10-14 0:34:354 days ago1728866075IN
0x4E053ac1...5EAcB5382
0 ETH0.000686647.76240616
Withdraw209149072024-10-07 16:34:1110 days ago1728318851IN
0x4E053ac1...5EAcB5382
0 ETH0.0041278832.66095948
Commit208580612024-09-29 18:22:2318 days ago1727634143IN
0x4E053ac1...5EAcB5382
0 ETH0.001049478.03626114
Commit208553712024-09-29 9:22:4719 days ago1727601767IN
0x4E053ac1...5EAcB5382
0 ETH0.001262836.87877794
Deposit LP208519182024-09-28 21:48:2319 days ago1727560103IN
0x4E053ac1...5EAcB5382
0 ETH0.000615824.96501794
Commit208505582024-09-28 17:14:1119 days ago1727543651IN
0x4E053ac1...5EAcB5382
0 ETH0.000812436.22172713
Deposit LP208505562024-09-28 17:13:4719 days ago1727543627IN
0x4E053ac1...5EAcB5382
0 ETH0.000814876.5705521
Deposit LP208454102024-09-28 0:00:5920 days ago1727481659IN
0x4E053ac1...5EAcB5382
0 ETH0.0013164910.24732565
Claim External208454042024-09-27 23:59:4720 days ago1727481587IN
0x4E053ac1...5EAcB5382
0 ETH0.000806669.07409062
Commit208426502024-09-27 14:46:4720 days ago1727448407IN
0x4E053ac1...5EAcB5382
0 ETH0.0029962517.99680529
Deposit LP208426362024-09-27 14:43:5921 days ago1727448239IN
0x4E053ac1...5EAcB5382
0 ETH0.002456819.73778175
Break Commitment208422332024-09-27 13:22:5921 days ago1727443379IN
0x4E053ac1...5EAcB5382
0 ETH0.0012251614.02373132
Commit207505062024-09-14 18:02:3533 days ago1726336955IN
0x4E053ac1...5EAcB5382
0 ETH0.000558763.04356091
Deposit LP207505022024-09-14 18:01:4733 days ago1726336907IN
0x4E053ac1...5EAcB5382
0 ETH0.00040492.9955167
Claim External207484612024-09-14 11:10:3534 days ago1726312235IN
0x4E053ac1...5EAcB5382
0 ETH0.000162841.75297053
Claim External207478252024-09-14 9:02:3534 days ago1726304555IN
0x4E053ac1...5EAcB5382
0 ETH0.000161391.73738833
Claim External207415062024-09-13 11:50:1135 days ago1726228211IN
0x4E053ac1...5EAcB5382
0 ETH0.000236872.54986196
Commit207370832024-09-12 21:02:1135 days ago1726174931IN
0x4E053ac1...5EAcB5382
0 ETH0.000280922.15136809
Deposit LP207370762024-09-12 21:00:4735 days ago1726174847IN
0x4E053ac1...5EAcB5382
0 ETH0.000272622.19820276
Commit206809512024-09-05 0:57:5943 days ago1725497879IN
0x4E053ac1...5EAcB5382
0 ETH0.000543824.1643394
Deposit LP206809482024-09-05 0:57:2343 days ago1725497843IN
0x4E053ac1...5EAcB5382
0 ETH0.000494073.98348694
Claim External206739702024-09-04 1:35:4744 days ago1725413747IN
0x4E053ac1...5EAcB5382
0 ETH0.000481935.18781944
Claim External206693032024-09-03 9:58:1145 days ago1725357491IN
0x4E053ac1...5EAcB5382
0 ETH0.000171661.75239962
Deposit LP206505252024-08-31 19:04:5947 days ago1725131099IN
0x4E053ac1...5EAcB5382
0 ETH0.000156921.22148747
Claim External206488902024-08-31 13:36:3548 days ago1725111395IN
0x4E053ac1...5EAcB5382
0 ETH0.000078560.84572787
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0xD9BecdB8...5033b2486
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
Teller

Compiler Version
v0.8.7+commit.e28d00a7

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion
File 1 of 8 : Teller.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.6;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "./interfaces/IVault.sol";

/**
 * @title Teller Contract
 */
contract Teller is Ownable, ReentrancyGuard {
    using Address for address;
    using SafeERC20 for IERC20;

    /// @notice Event emitted on construction.
    event TellerDeployed();

    /// @notice Event emitted when teller status is toggled.
    event TellerToggled(address teller, bool status);

    /// @notice Event emitted when new commitment is added.
    event NewCommitmentAdded(
        uint256 bonus,
        uint256 time,
        uint256 penalty,
        uint256 deciAdjustment
    );

    /// @notice Event emitted when commitment status is toggled.
    event CommitmentToggled(uint256 index, bool status);

    /// @notice Event emitted when owner sets the dev address to get the break commitment fees.
    event PurposeSet(address devAddress, bool purposeStatus);

    /// @notice Event emitted when a provider deposits lp tokens.
    event LpDeposited(address indexed provider, uint256 indexed amount);

    /// @notice Event emitted when a provider withdraws lp tokens.
    event Withdrew(address indexed provider, uint256 indexed amount);

    /// @notice Event emitted when a provider commits lp tokens.
    event Commited(address indexed provider, uint256 indexed commitedAmount);

    /// @notice Event emitted when a provider breaks the commitment.
    event CommitmentBroke(address indexed provider, uint256 indexed tokenSentAmount);

    /// @notice Event emitted when provider claimed rewards.
    event Claimed(address indexed provider, bool indexed success);

    struct Provider {
        uint256 LPDepositedRatio;
        uint256 userWeight;
        uint256 lastClaimedTime;
        uint256 commitmentIndex;
        uint256 committedAmount;
        uint256 commitmentEndTime;
    }

    struct Commitment {
        uint256 bonus;
        uint256 duration;
        uint256 penalty;
        uint256 deciAdjustment;
        bool isActive;
    }

    IVault public Vault;
    IERC20 public LpToken;

    uint256 public totalLP;
    uint256 public totalWeight;
    uint256 public tellerClosedTime;

    bool public tellerOpen;
    bool public purpose;

    address public devAddress;

    Commitment[] public commitmentInfo;

    mapping(address => Provider) public providerInfo;

    modifier isTellerOpen() {
        require(tellerOpen, "Teller: Teller is not open.");
        _;
    }

    modifier isProvider() {
        require(
            providerInfo[msg.sender].LPDepositedRatio != 0,
            "Teller: Caller is not a provider."
        );
        _;
    }

    modifier isTellerClosed() {
        require(!tellerOpen, "Teller: Teller is still active.");
        _;
    }

    /**
     * @dev Constructor function
     * @param _LpToken Interface of LP token
     * @param _Vault Interface of Vault
     */
    constructor(IERC20 _LpToken, IVault _Vault) {
        LpToken = _LpToken;
        Vault = _Vault;
        commitmentInfo.push();

        emit TellerDeployed();
    }

    /**
     * @dev External function to toggle the teller. This function can be called only by the owner.
     */
    function toggleTeller() external onlyOwner {
        tellerOpen = !tellerOpen;
        tellerClosedTime = block.timestamp;
        emit TellerToggled(address(this), tellerOpen);
    }

    /**
     * @dev External function to add a commitment option. This function can be called only by the owner.
     * @param _bonus Amount of bonus
     * @param _days Commitment duration in days
     * @param _penalty The penalty
     * @param _deciAdjustment Decimal percentage
     */
    function addCommitment(
        uint256 _bonus,
        uint256 _days,
        uint256 _penalty,
        uint256 _deciAdjustment
    ) external onlyOwner {
        Commitment memory holder;

        holder.bonus = _bonus;
        holder.duration = _days * 1 days;
        holder.penalty = _penalty;
        holder.deciAdjustment = _deciAdjustment;
        holder.isActive = true;

        commitmentInfo.push(holder);

        emit NewCommitmentAdded(_bonus, _days, _penalty, _deciAdjustment);
    }

    /**
     * @dev External function to toggle the commitment. This function can be called only by the owner.
     * @param _index Commitment index
     */
    function toggleCommitment(uint256 _index) external onlyOwner {
        require(
            0 < _index && _index < commitmentInfo.length,
            "Teller: Current index is not listed in the commitment array."
        );
        commitmentInfo[_index].isActive = !commitmentInfo[_index].isActive;

        emit CommitmentToggled(_index, commitmentInfo[_index].isActive);
    }

    /**
     * @dev External function to set the dev address to give that address the break commitment fees. This function can be called only by the owner.
     * @param _address Dev address
     * @param _status If purpose is active or not
     */
    function setPurpose(address _address, bool _status) external onlyOwner {
        purpose = _status;
        devAddress = _address;

        emit PurposeSet(devAddress, purpose);
    }

    /**
     * @dev External function for providers to deposit lp tokens. Teller must be open.
     * @param _amount LP token amount
     */
    function depositLP(uint256 _amount) external isTellerOpen {
        uint256 contractBalance = LpToken.balanceOf(address(this));
        LpToken.safeTransferFrom(msg.sender, address(this), _amount);

        Provider storage user = providerInfo[msg.sender];
        if (user.LPDepositedRatio != 0) {
            commitmentFinished();
            claim();
        } else {
            user.lastClaimedTime = block.timestamp;
        }
        if (contractBalance == totalLP || totalLP == 0) {
            user.LPDepositedRatio += _amount;
            totalLP += _amount;
        } else {
            uint256 _adjustedAmount = (_amount * totalLP) / contractBalance;
            user.LPDepositedRatio += _adjustedAmount;
            totalLP += _adjustedAmount;
        }

        user.userWeight += _amount;
        totalWeight += _amount;

        emit LpDeposited(msg.sender, _amount);
    }

    /**
     * @dev External function to withdraw lp token from the teller. This function can be called only by a provider.
     * @param _amount LP token amount
     */
    function withdraw(uint256 _amount) external isProvider nonReentrant {
        Provider storage user = providerInfo[msg.sender];
        uint256 contractBalance = LpToken.balanceOf(address(this));
        commitmentFinished();
        uint256 userTokens = (user.LPDepositedRatio * contractBalance) /
            totalLP;
        require(
            userTokens - user.committedAmount >= _amount,
            "Teller: Provider hasn't got enough deposited LP tokens to withdraw."
        );

        claim();

        uint256 _weightChange = (_amount * user.userWeight) / userTokens;
        user.userWeight -= _weightChange;
        totalWeight -= _weightChange;

        uint256 ratioChange = _amount * totalLP/contractBalance;
        user.LPDepositedRatio -= ratioChange;
        totalLP -= ratioChange;


        LpToken.safeTransfer(msg.sender, _amount);

        emit Withdrew(msg.sender, _amount);
    }

    /**
     * @dev External function to withdraw lp token when teller is closed. This function can be called only by a provider.
     */
    function tellerClosedWithdraw() external isTellerClosed isProvider {
        uint256 contractBalance = LpToken.balanceOf(address(this));
        require(contractBalance != 0, "Teller: Contract balance is zero.");

        claim();

        Provider memory user = providerInfo[msg.sender];

        uint256 userTokens = (user.LPDepositedRatio * contractBalance) /
            totalLP;
        totalLP -= user.LPDepositedRatio;
        totalWeight -= user.userWeight;

        providerInfo[msg.sender] = Provider(0, 0, 0, 0, 0, 0);

        LpToken.safeTransfer(msg.sender, userTokens);

        emit Withdrew(msg.sender, userTokens);
    }

    /**
     * @dev External function to commit lp token to gain a minor advantage for a selected period of time. This function can be called only by a provider.
     * @param _amount LP token amount
     * @param _commitmentIndex Index of commitment array
     */
    function commit(uint256 _amount, uint256 _commitmentIndex)
        external
        nonReentrant
        isProvider
    {
        require(
            commitmentInfo[_commitmentIndex].isActive,
            "Teller: Current commitment is not active."
        );

        Provider storage user = providerInfo[msg.sender];
        commitmentFinished();
        uint256 contractBalance = LpToken.balanceOf(address(this));
        uint256 userTokens = (user.LPDepositedRatio * contractBalance) /
            totalLP;

        require(
            userTokens - user.committedAmount >= _amount,
            "Teller: Provider hasn't got enough deposited LP tokens to commit."
        );

        if (user.committedAmount != 0) {
            require(
                _commitmentIndex == user.commitmentIndex,
                "Teller: Commitment index is not the same as providers'."
            );
        }

        uint256 newEndTime;

        if (
            user.commitmentEndTime >= block.timestamp &&
            user.committedAmount != 0
        ) {
            newEndTime = calculateNewEndTime(
                user.committedAmount,
                _amount,
                user.commitmentEndTime,
                _commitmentIndex
            );
        } else {
            newEndTime =
                block.timestamp +
                commitmentInfo[_commitmentIndex].duration;
        }

        uint256 weightToGain = (_amount * user.userWeight) / userTokens;
        uint256 bonusCredit = commitBonus(_commitmentIndex, weightToGain);

        claim();

        user.commitmentIndex = _commitmentIndex;
        user.committedAmount += _amount;
        user.commitmentEndTime = newEndTime;
        user.userWeight += bonusCredit;
        totalWeight += bonusCredit;

        emit Commited(msg.sender, _amount);
    }

    /**
     * @dev External function to break the commitment. This function can be called only by a provider.
     */
    function breakCommitment() external nonReentrant isProvider {
        Provider memory user = providerInfo[msg.sender];

        require(
            user.commitmentEndTime > block.timestamp,
            "Teller: No commitment to break."
        );

        uint256 contractBalance = LpToken.balanceOf(address(this));

        uint256 tokenToReceive = (user.LPDepositedRatio * contractBalance) /
            totalLP;

        Commitment memory currentCommit = commitmentInfo[user.commitmentIndex];
        
        //fee for breaking the commitment
        uint256 fee = (user.committedAmount * currentCommit.penalty) /
            currentCommit.deciAdjustment;
            
        //fee reduced from provider and left in teller
        tokenToReceive -= fee;

        totalLP -= user.LPDepositedRatio;

        totalWeight -= user.userWeight;

        providerInfo[msg.sender] = Provider(0, 0, 0, 0, 0, 0);
        
        //if a devloper purpose is set then transfer to address
        if (purpose) {
            LpToken.safeTransfer(devAddress, fee / 10);
        }
        
        //Fee is not lost it is dispersed to remaining providers. 
        LpToken.safeTransfer(msg.sender, tokenToReceive);

        emit CommitmentBroke(msg.sender, tokenToReceive);
    }

    /**
     * @dev Internal function to claim rewards.
     */
    function claim() internal {
        Provider storage user = providerInfo[msg.sender];
        uint256 timeGap = block.timestamp - user.lastClaimedTime;

        if (!tellerOpen) {
            timeGap = tellerClosedTime - user.lastClaimedTime;
        }

        if (timeGap > 365 * 1 days) {
            timeGap = 365 * 1 days;
        }

        uint256 timeWeight = timeGap * user.userWeight;

        user.lastClaimedTime = block.timestamp;

        Vault.payProvider(msg.sender, timeWeight, totalWeight);

        emit Claimed(msg.sender, true);
    }

    /**
     * @dev Internal function to return commit bonus.
     * @param _commitmentIndex Index of commitment array
     * @param _amount Commitment token amount
     */
    function commitBonus(uint256 _commitmentIndex, uint256 _amount)
        internal
        view
        returns (uint256)
    {
        if (commitmentInfo[_commitmentIndex].isActive) {
            return
                (commitmentInfo[_commitmentIndex].bonus * _amount) /
                commitmentInfo[_commitmentIndex].deciAdjustment;
        }
        return 0;
    }

    /**
     * @dev Internal function to calculate the new ending time when the current end time is overflown.
     * @param _oldAmount Commitment lp token amount which provider has
     * @param _extraAmount Lp token amount which user wants to commit
     * @param _oldEndTime Previous commitment ending time
     * @param _commitmentIndex Index of commitment array
     */
    function calculateNewEndTime(
        uint256 _oldAmount,
        uint256 _extraAmount,
        uint256 _oldEndTime,
        uint256 _commitmentIndex
    ) internal view returns (uint256) {
        uint256 extraEndTIme = commitmentInfo[_commitmentIndex].duration +
            block.timestamp;
        uint256 newEndTime = ((_oldAmount * _oldEndTime) +
            (_extraAmount * extraEndTIme)) / (_oldAmount + _extraAmount);

        return newEndTime;
    }

    /**
     * @dev Internal function to finish a commitment when it has ended.
     */
    function commitmentFinished() internal {
        Provider storage user = providerInfo[msg.sender];
        if (user.commitmentEndTime <= block.timestamp) {
            user.committedAmount = 0;
            user.commitmentIndex = 0;
        }
    }

    /**
     * @dev External function to claim the reward token. This function can be called only by a provider and teller must be open.
     */
    function claimExternal() external isTellerOpen isProvider nonReentrant {
        commitmentFinished();
        claim();
    }

    /**
     * @dev External function to get User info. This function can be called from a msg.sender with active deposits.
     * @return Time of rest committed time
     * @return Committed amount
     * @return Committed Index
     * @return Amount to Claim
     * @return Total LP deposited
     */
    function getUserInfo(address _user)
        external
        view
        returns (
            uint256,
            uint256,
            uint256,
            uint256,
            uint256
        )
    {
        Provider memory user = providerInfo[_user];

        if (user.LPDepositedRatio > 0) {
            uint256 claimAmount = (Vault.vidyaRate() *
                Vault.tellerPriority(address(this)) *
                (block.timestamp - user.lastClaimedTime) *
                user.userWeight) / (totalWeight * Vault.totalPriority());

            uint256 totalLPDeposited = (providerInfo[msg.sender]
                .LPDepositedRatio * LpToken.balanceOf(address(this))) / totalLP;

            if (user.commitmentEndTime > block.timestamp) {
                return (
                    user.commitmentEndTime - block.timestamp,
                    user.committedAmount,
                    user.commitmentIndex,
                    claimAmount,
                    totalLPDeposited
                );
            } else {
                return (0, 0, 0, claimAmount, totalLPDeposited);
            }
        } else {
            return (0, 0, 0, 0, 0);
        }
    }
}

File 2 of 8 : IVault.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.6;

/**
 * @title Vault Interface
 */
interface IVault {
    /**
     * @dev External function to get vidya rate.
     */
    function vidyaRate() external view returns (uint256);

    /**
     * @dev External function to get total priority.
     */
    function totalPriority() external view returns (uint256);

    /**
     * @dev External function to get teller priority.
     * @param tellerId Teller Id
     */
    function tellerPriority(address tellerId) external view returns (uint256);

    /**
     * @dev External function to add the teller. This function can be called by only owner.
     * @param teller Address of teller
     * @param priority Priority of teller
     */
    function addTeller(address teller, uint256 priority) external;

    /**
     * @dev External function to change the priority of teller. This function can be called by only owner.
     * @param teller Address of teller
     * @param newPriority New priority of teller
     */
    function changePriority(address teller, uint256 newPriority) external;

    /**
     * @dev External function to pay the Vidya token to investors. This function can be called by only teller.
     * @param provider Address of provider
     * @param providerTimeWeight Weight time of provider
     * @param totalWeight Sum of provider weight
     */
    function payProvider(
        address provider,
        uint256 providerTimeWeight,
        uint256 totalWeight
    ) external;

    /**
     * @dev External function to calculate the Vidya Rate.
     */
    function calculateRateExternal() external;
}

File 3 of 8 : SafeERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

File 4 of 8 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)

pragma solidity ^0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 5 of 8 : ReentrancyGuard.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}

File 6 of 8 : IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: 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
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

File 7 of 8 : Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

File 8 of 8 : Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

Settings
{
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"contract IERC20","name":"_LpToken","type":"address"},{"internalType":"contract IVault","name":"_Vault","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"provider","type":"address"},{"indexed":true,"internalType":"bool","name":"success","type":"bool"}],"name":"Claimed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"provider","type":"address"},{"indexed":true,"internalType":"uint256","name":"commitedAmount","type":"uint256"}],"name":"Commited","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"provider","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenSentAmount","type":"uint256"}],"name":"CommitmentBroke","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"index","type":"uint256"},{"indexed":false,"internalType":"bool","name":"status","type":"bool"}],"name":"CommitmentToggled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"provider","type":"address"},{"indexed":true,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"LpDeposited","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"bonus","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"penalty","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"deciAdjustment","type":"uint256"}],"name":"NewCommitmentAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"devAddress","type":"address"},{"indexed":false,"internalType":"bool","name":"purposeStatus","type":"bool"}],"name":"PurposeSet","type":"event"},{"anonymous":false,"inputs":[],"name":"TellerDeployed","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"teller","type":"address"},{"indexed":false,"internalType":"bool","name":"status","type":"bool"}],"name":"TellerToggled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"provider","type":"address"},{"indexed":true,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdrew","type":"event"},{"inputs":[],"name":"LpToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"Vault","outputs":[{"internalType":"contract IVault","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_bonus","type":"uint256"},{"internalType":"uint256","name":"_days","type":"uint256"},{"internalType":"uint256","name":"_penalty","type":"uint256"},{"internalType":"uint256","name":"_deciAdjustment","type":"uint256"}],"name":"addCommitment","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"breakCommitment","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"claimExternal","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"uint256","name":"_commitmentIndex","type":"uint256"}],"name":"commit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"commitmentInfo","outputs":[{"internalType":"uint256","name":"bonus","type":"uint256"},{"internalType":"uint256","name":"duration","type":"uint256"},{"internalType":"uint256","name":"penalty","type":"uint256"},{"internalType":"uint256","name":"deciAdjustment","type":"uint256"},{"internalType":"bool","name":"isActive","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"depositLP","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"devAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"}],"name":"getUserInfo","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"providerInfo","outputs":[{"internalType":"uint256","name":"LPDepositedRatio","type":"uint256"},{"internalType":"uint256","name":"userWeight","type":"uint256"},{"internalType":"uint256","name":"lastClaimedTime","type":"uint256"},{"internalType":"uint256","name":"commitmentIndex","type":"uint256"},{"internalType":"uint256","name":"committedAmount","type":"uint256"},{"internalType":"uint256","name":"commitmentEndTime","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"purpose","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_address","type":"address"},{"internalType":"bool","name":"_status","type":"bool"}],"name":"setPurpose","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"tellerClosedTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tellerClosedWithdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"tellerOpen","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_index","type":"uint256"}],"name":"toggleCommitment","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"toggleTeller","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"totalLP","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalWeight","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

Deployed Bytecode

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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.