Contract 0x3bfd113ad0329a7994a681236323fb16e16790e3

Contract Overview

Balance:
0 MOVR

MOVR Value:
$0.00

Token:
Txn Hash Method
Block
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0x95534dd3a7c525a844958b46edcf9ff0077e86cdecbdf150cc66c129abcc6e28Approve26559072022-09-27 19:11:182 hrs 39 mins ago0x06b3567747913e158d34115cc3d1377c6fc4d151 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001164675
0x7ecce753fc4a6995832bb1134893012b1eef128558ffa9e16bcbc21d8a632ac0Wrap26558892022-09-27 19:07:422 hrs 43 mins ago0x06b3567747913e158d34115cc3d1377c6fc4d151 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001649875
0xa5d861b4526785527c0a7336b984612a4d98b7821dbc644334b36b6dca42b35aUnwrap26548842022-09-27 15:39:126 hrs 11 mins ago0x9a155521e258b2ed3575cb2743ac7a14fb3c5508 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001165575
0xd969b491888deac5a286d7425afa421faab407371a6dc78330bd32c8627930bcUnwrap26547932022-09-27 15:20:246 hrs 30 mins ago0x9a155521e258b2ed3575cb2743ac7a14fb3c5508 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001165325
0x94848a1df7df43f2bc100117ef019b28cdc59006d80f59181fe3a4a016aec892Unwrap26535052022-09-27 10:53:4210 hrs 57 mins ago0xfa2ec4b072b7cdd81ecab0e8b433892a60c2d562 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001165575
0xe39d6c655a1af5f836ccd62a4785591e85f5e5f072f9d1d0ba8bc6e2242ac888Approve26512662022-09-27 3:09:0618 hrs 41 mins ago0xcd5d3d03effb12679b77086a4c3afc925665efe7 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001164675
0xc6403fe81e985f3356113bdd232de27e93c7444d75575556350f69753f939080Unwrap26506642022-09-27 1:04:1820 hrs 46 mins ago0x679dff9345b9914bf8abdf7c51b28af1dabff624 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.00011658
0xa76bd347f8adc0be991cf35feae390d304be21411dc6658ecc9e0fc5c774cb26Wrap26493312022-09-26 20:28:421 day 1 hr ago0x1ef91043d3cdb315a5c97a03b843e6095ba6ea02 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001251625
0xe6ffe9676a2406843b2682a37234c375d4f2bbb7fd4529a9dc103d8a784a543dWrap26480352022-09-26 15:59:481 day 5 hrs ago0x2eaff018002e4a88163b133d1657788633046514 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001251625
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0xc9abfc96a8d499ff25520259de293c0883d3a081152a1480552386812a02837dSubmit26478072022-09-26 15:13:181 day 6 hrs ago0xba99f374c20a3475de737b466ee68ad9c38c26af IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.00036418
0x9caa378a4054db7884ae0ae1465c2b8733233652319bdd9f5d705d4a6e5e6d30Submit26463232022-09-26 10:04:301 day 11 hrs ago0xd67a4ba78a514c6684b2b9098386a570d0c33ed1 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.00031446
0xcf20e73154e10095e6b20dd712b536f45da3a62fa6f3704ee3fed438816f0c8eApprove26462312022-09-26 9:45:061 day 12 hrs ago0x27041f15c17ce73933d4e83d66cd0da4a803d826 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001164675
0x1b8eb78b51ddfce4fb8f2b836189c3f9216753c1e6003c69da4389e98ac6303dWrap26462072022-09-26 9:40:181 day 12 hrs ago0x27041f15c17ce73933d4e83d66cd0da4a803d826 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001649875
0x6e060501aa351ea0d4cdd676f257bd3573504d47eadf889d7dde4884531ff112Approve26459052022-09-26 8:36:301 day 13 hrs ago0x6a769a5b61c0e8829730e85129734dc3f61200ce IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001164675
0xc0d9bf4786ec6af2c927b5fa5fa10f2f7cb3b4b80b576f3895b238206da591baSubmit26458982022-09-26 8:34:361 day 13 hrs ago0x6a769a5b61c0e8829730e85129734dc3f61200ce IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.00041396
0x7f681d4a01c853844d0aa6ac15ef87bba0d3a8700e81d2a21066578c3a1aebceWrap26424752022-09-25 20:39:362 days 1 hr ago0xf195e058d589d76684ec01b2a7393846100fd01b IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.000065985
0x1b50f77c6d4f3b6e87693a1d7c5f3f94a04942d5dfac97885e994e1fab7869f9Unwrap26371262022-09-25 2:02:002 days 19 hrs ago0x679dff9345b9914bf8abdf7c51b28af1dabff624 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001042625
0x0aed2fbb295ebf0b75d67c1d1233c37c4ac73cca21e5688a772dd1f7fa7ffb16Unwrap26371242022-09-25 2:01:362 days 19 hrs ago0x679dff9345b9914bf8abdf7c51b28af1dabff624 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001165575
0x7068765e59816f6223fc96f4e93bc9ea1bf3c266daa9bc26b8addd1bee3fb3b4Unwrap26360532022-09-24 22:19:242 days 23 hrs ago0x9a56d64e5eeace4cd0184c9f0fa5df5bbfa00e62 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001165575
0x1d305d98d7878879f026e3d4ff2c1a6a71a9ac47a26c7b469593dd7c4b1d5d52Unwrap26351852022-09-24 19:18:303 days 2 hrs ago0x9c3967b93589030bbdd3e14fe4942ef365e24bc3 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001165575
0x9888113f2367636d1ce6c5660fe09acffb2617818d692e0b8b22b811a961ce5bUnwrap26337992022-09-24 14:31:063 days 7 hrs ago0x3e9d881cf49d8b570cf5c5d00de73cc4d454bad5 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001165575
0xad8c2ad4a829e75411a7aa020478c6eb21ab4162debbf468ebbfcd18efcb5b3cUnwrap26337212022-09-24 14:15:063 days 7 hrs ago0x3e9d881cf49d8b570cf5c5d00de73cc4d454bad5 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001165575
0x29c8809490c622be3d8fff44c9dcf8aa83cb027f6976a68972769f92f1650be0Unwrap26335412022-09-24 13:36:303 days 8 hrs ago0x3e9d881cf49d8b570cf5c5d00de73cc4d454bad5 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001165575
0xe6fe43d6686e8ec92e183011e455312363e6bcbdd12cb7c8c306e35e48951617Unwrap26324252022-09-24 9:41:363 days 12 hrs ago0xfb09da501a1939959daefa9dbdf196007a9befa4 IN  0x3bfd113ad0329a7994a681236323fb16e16790e30 MOVR0.0001165575
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Contract Source Code Verified (Exact Match)

Contract Name:
WstKSM

Compiler Version
v0.8.9+commit.e5eed63a

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 7 : wstKSM.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "ERC20.sol";
import "IERC20.sol";
import "ILido.sol";

contract WstKSM is ERC20 {
    // LIDO contract
    ILido public LIDO;

    // vKSM precompile
    IERC20 public VKSM;

    /**
     * @param _lido address of the StKSM token to wrap
     */
    constructor(ILido _lido, IERC20 _vKSM) ERC20("Wrapped liquid staked KSM", "wstKSM") {
        LIDO = _lido;
        VKSM = _vKSM;
    }

    /**
    * @notice Stub fallback for native token, always reverting
    */
    fallback() external {
        revert("WSTKSM: FORBIDDEN");
    }

    /**
     * @return the number of decimals for getting user representation of a token amount.
     */
    function decimals() public view override returns (uint8) {
        return 12;
    }

    /**
     * @notice Stake vKSM to stKSM and wrap stKSM to wstKSM
     * @param _vKSMAmount amount of vKSM
     * @return Amount of wstKSM for a given vKSM amount
     */
    function submit(uint256 _vKSMAmount) external returns (uint256) {
        require(_vKSMAmount > 0, "WSTKSM: ZERO_VKSM");
        VKSM.transferFrom(msg.sender, address(this), _vKSMAmount);
        if (VKSM.allowance(address(this), address(LIDO)) < _vKSMAmount) {
            VKSM.approve(address(LIDO), type(uint256).max);
        }
        uint256 shares = LIDO.deposit(_vKSMAmount);
        require(shares > 0, "WSTKSM: ZERO_SHARES");
        _mint(msg.sender, shares);
        return shares;
    }

    /**
     * @notice Wrap stKSM to wstKSM
     * @param _stKSMAmount amount of stKSM
     * @return Amount of wstKSM for a given stKSM amount
     */
    function wrap(uint256 _stKSMAmount) external returns (uint256) {
        require(_stKSMAmount > 0, "WSTKSM: ZERO_STKSM");
        uint256 wstKSMAmount = LIDO.getSharesByPooledKSM(_stKSMAmount);
        require(wstKSMAmount > 0, "WSTKSM: MINT_ZERO_AMOUNT");
        _mint(msg.sender, wstKSMAmount);
        require(LIDO.transferFrom(msg.sender, address(this), _stKSMAmount), "WSTKSM: TRANSFER_FROM_REVERT");
        return wstKSMAmount;
    }

    /**
     * @notice Unwrap wstKSM to stKSM
     * @param _wstKSMAmount amount of wstKSM
     * @return Amount of stKSM for a given wstKSM amount
     */
    function unwrap(uint256 _wstKSMAmount) external returns (uint256) {
        require(_wstKSMAmount > 0, "WSTKSM: ZERO_WSTKSM");
        uint256 stKSMAmount = LIDO.getPooledKSMByShares(_wstKSMAmount);
        require(stKSMAmount > 0, "WSTKSM: BURN_ZERO_AMOUNT");
        _burn(msg.sender, _wstKSMAmount);
        require(LIDO.transfer(msg.sender, stKSMAmount), "WSTKSM: TRANSFER_REVERT");
        return stKSMAmount;
    }

    /**
     * @notice Get amount of wstKSM for a given amount of stKSM
     * @param _stKSMAmount amount of stKSM
     * @return Amount of wstKSM for a given stKSM amount
     */
    function getWstKSMByStKSM(uint256 _stKSMAmount) external view returns (uint256) {
        return LIDO.getSharesByPooledKSM(_stKSMAmount);
    }

    /**
     * @notice Get amount of stKSM for a given amount of wstKSM
     * @param _wstKSMAmount amount of wstKSM
     * @return Amount of stKSM for a given wstKSM amount
     */
    function getStKSMByWstKSM(uint256 _wstKSMAmount) external view returns (uint256) {
        return LIDO.getPooledKSMByShares(_wstKSMAmount);
    }
}

File 2 of 7 : ERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "IERC20.sol";
import "IERC20Metadata.sol";
import "Context.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin guidelines: functions revert instead
 * of returning `false` on failure. This behavior is nonetheless conventional
 * and does not conflict with the expectations of ERC20 applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping (address => uint256) private _balances;

    mapping (address => mapping (address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * The defaut value of {decimals} is 18. To select a different value for
     * {decimals} you should overload it.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor (string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5,05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless this function is
     * overridden;
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `recipient` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * Requirements:
     *
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for ``sender``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);

        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
        _approve(sender, _msgSender(), currentAllowance - amount);

        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        uint256 currentAllowance = _allowances[_msgSender()][spender];
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        _approve(_msgSender(), spender, currentAllowance - subtractedValue);

        return true;
    }

    /**
     * @dev Moves tokens `amount` from `sender` to `recipient`.
     *
     * This is internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `sender` cannot be the zero address.
     * - `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     */
    function _transfer(address sender, address recipient, uint256 amount) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        uint256 senderBalance = _balances[sender];
        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
        _balances[sender] = senderBalance - amount;
        _balances[recipient] += amount;

        emit Transfer(sender, recipient, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        _balances[account] += amount;
        emit Transfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        _balances[account] = accountBalance - amount;
        _totalSupply -= amount;

        emit Transfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be to transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }
}

File 3 of 7 : IERC20.sol
// SPDX-License-Identifier: MIT

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 4 of 7 : IERC20Metadata.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

File 5 of 7 : Context.sol
// SPDX-License-Identifier: MIT

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) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

File 6 of 7 : ILido.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "Types.sol";

interface ILido {
    function MAX_ALLOWABLE_DIFFERENCE() external view returns(uint128);

    function developers() external view returns(address);

    function deposit(uint256 amount) external returns (uint256);
    
    function distributeRewards(uint256 totalRewards, uint256 ledgerBalance) external;

    function distributeLosses(uint256 totalLosses, uint256 ledgerBalance) external;

    function getStashAccounts() external view returns (bytes32[] memory);

    function getLedgerAddresses() external view returns (address[] memory);

    function ledgerStake(address ledger) external view returns (uint256);

    function ledgerShares(address ledger) external view returns (uint256);

    function avaliableForStake() external view returns (uint256);

    function transferFromLedger(uint256 amount) external;

    function transferToLedger(uint256 amount) external;

    function flushStakes() external;

    function findLedger(bytes32 stash) external view returns (address);

    function AUTH_MANAGER() external returns(address);

    function ORACLE_MASTER() external view returns (address);

    function getPooledKSMByShares(uint256 sharesAmount) external view returns (uint256);

    function getSharesByPooledKSM(uint256 amount) external view returns (uint256);

    function transfer(address recipient, uint256 amount) external returns (bool);

    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
}

File 7 of 7 : Types.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface Types {
    struct Fee{
        uint16 total;
        uint16 operators;
        uint16 developers;
        uint16 treasury;
    }

    struct Stash {
        bytes32 stashAccount;
        uint64  eraId;
    }

    enum LedgerStatus {
        // bonded but not participate in staking
        Idle,
        // participate as nominator
        Nominator,
        // participate as validator
        Validator,
        // not bonded not participate in staking
        None
    }

    struct UnlockingChunk {
        uint128 balance;
        uint64 era;
    }

    struct OracleData {
        bytes32 stashAccount;
        bytes32 controllerAccount;
        LedgerStatus stakeStatus;
        // active part of stash balance
        uint128 activeBalance;
        // locked for stake stash balance.
        uint128 totalBalance;
        // totalBalance = activeBalance + sum(unlocked.balance)
        UnlockingChunk[] unlocking;
        uint32[] claimedRewards;
        // stash account balance. It includes locked (totalBalance) balance assigned
        // to a controller.
        uint128 stashBalance;
        // slashing spans for ledger
        uint32 slashingSpans;
    }

    struct RelaySpec {
        uint16 maxValidatorsPerLedger;
        uint128 minNominatorBalance;
        uint128 ledgerMinimumActiveBalance;
        uint256 maxUnlockingChunks;
    }
}

Settings
{
  "evmVersion": "istanbul",
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "libraries": {
    "wstKSM.sol": {}
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

Contract ABI

[{"inputs":[{"internalType":"contract ILido","name":"_lido","type":"address"},{"internalType":"contract IERC20","name":"_vKSM","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"stateMutability":"nonpayable","type":"fallback"},{"inputs":[],"name":"LIDO","outputs":[{"internalType":"contract ILido","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"VKSM","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_wstKSMAmount","type":"uint256"}],"name":"getStKSMByWstKSM","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_stKSMAmount","type":"uint256"}],"name":"getWstKSMByStKSM","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_vKSMAmount","type":"uint256"}],"name":"submit","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_wstKSMAmount","type":"uint256"}],"name":"unwrap","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_stKSMAmount","type":"uint256"}],"name":"wrap","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

000000000000000000000000ffc7780c34b450d917d557e728f033033cb4fa8c000000000000000000000000ffffffff1fcacbd218edc0eba20fc2308c778080

-----Decoded View---------------
Arg [0] : _lido (address): 0xffc7780c34b450d917d557e728f033033cb4fa8c
Arg [1] : _vKSM (address): 0xffffffff1fcacbd218edc0eba20fc2308c778080

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000ffc7780c34b450d917d557e728f033033cb4fa8c
Arg [1] : 000000000000000000000000ffffffff1fcacbd218edc0eba20fc2308c778080


Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
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