ERC-20
Overview
Max Total Supply
13,578.88208127 ERC20 ***
Holders
333
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 8 Decimals)
Balance
0.01 ERC20 ***Value
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Minimal Proxy Contract for 0x7c91794b65eb573c3702229009acd3cde712146d
Contract Name:
Otoken
Compiler Version
v0.6.10+commit.00c0fcaf
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
1234567891011121314151617181920212223242526/* SPDX-License-Identifier: UNLICENSED */pragma solidity =0.6.10;import {ERC20Upgradeable} from "./packages/oz/upgradeability/ERC20Upgradeable.sol";import {ERC20PermitUpgradeable} from "./packages/oz/upgradeability/erc20-permit/ERC20PermitUpgradeable.sol";import {Strings} from "./packages/oz/Strings.sol";import {BokkyPooBahsDateTimeLibrary} from "./packages/BokkyPooBahsDateTimeLibrary.sol";import {AddressBookInterface} from "./interfaces/AddressBookInterface.sol";/*** @title Otoken* @author Opyn Team* @notice Otoken is the ERC20 token for an option* @dev The Otoken inherits ERC20Upgradeable because we need to use the init instead of constructor*/contract Otoken is ERC20PermitUpgradeable {/// @notice address of the Controller moduleaddress public controller;/// @notice asset that the option referencesaddress public underlyingAsset;/// @notice asset that the strike price is denominated inaddress public strikeAsset;/// @notice asset that is held as collateral against short/written options
1234567891011121314151617181920212223242526// SPDX-License-Identifier: UNLICENSEDpragma solidity 0.6.10;interface AddressBookInterface {/* Getters */function getOtokenImpl() external view returns (address);function getOtokenFactory() external view returns (address);function getWhitelist() external view returns (address);function getController() external view returns (address);function getOracle() external view returns (address);function getMarginPool() external view returns (address);function getMarginCalculator() external view returns (address);function getLiquidationManager() external view returns (address);function getAddress(bytes32 _id) external view returns (address);/* Setters */
1234567891011121314151617181920212223242526// SPDX-License-Identifier: MIT// solhint-disablepragma solidity ^0.6.0;// ----------------------------------------------------------------------------// BokkyPooBah's DateTime Library v1.01//// A gas-efficient Solidity date and time library//// https://github.com/bokkypoobah/BokkyPooBahsDateTimeLibrary//// Tested date range 1970/01/01 to 2345/12/31//// Conventions:// Unit | Range | Notes// :-------- |:-------------:|:-----// timestamp | >= 0 | Unix timestamp, number of seconds since 1970/01/01 00:00:00 UTC// year | 1970 ... 2345 |// month | 1 ... 12 |// day | 1 ... 31 |// hour | 0 ... 23 |// minute | 0 ... 59 |// second | 0 ... 59 |// dayOfWeek | 1 ... 7 | 1 = Monday, ..., 7 = Sunday////
1234567891011121314151617181920212223242526// SPDX-License-Identifier: MIT/* solhint-disable */pragma solidity =0.6.10;/*** @dev String operations.*/library Strings {/*** @dev Converts a `uint256` to its ASCII `string` representation.*/function toString(uint256 value) internal pure returns (string memory) {// Inspired by OraclizeAPI's implementation - MIT licence// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.solif (value == 0) {return "0";}uint256 temp = value;uint256 digits;while (temp != 0) {digits++;temp /= 10;}bytes memory buffer = new bytes(digits);uint256 index = digits - 1;
1234567891011121314151617181920212223242526// SPDX-License-Identifier: MITpragma solidity >=0.6.0 <0.8.0;import "./GSN/ContextUpgradeable.sol";import "./IERC20Upgradeable.sol";import "./math/SafeMathUpgradeable.sol";import "./Initializable.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
1234567891011121314151617181920212223242526// SPDX-License-Identifier: MITpragma solidity >=0.6.0 <0.8.0;import "../Initializable.sol";/** @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 GSN 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 ContextUpgradeable is Initializable {function __Context_init() internal initializer {__Context_init_unchained();}function __Context_init_unchained() internal initializer {}function _msgSender() internal virtual view returns (address payable) {return msg.sender;}
1234567891011121314151617181920212223242526// SPDX-License-Identifier: MITpragma solidity >=0.6.0 <0.8.0;/*** @dev Interface of the ERC20 standard as defined in the EIP.*/interface IERC20Upgradeable {/*** @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);
1234567891011121314151617181920212223242526// SPDX-License-Identifier: MIT/* solhint-disable */pragma solidity >=0.4.24 <0.7.0;/*** @title Initializable** @dev Helper contract to support initializer functions. To use it, replace* the constructor with a function that has the `initializer` modifier.* WARNING: Unlike constructors, initializer functions must be manually* invoked. This applies both to deploying an Initializable contract, as well* as extending an Initializable contract via inheritance.* WARNING: When used with inheritance, manual care must be taken to not invoke* a parent initializer twice, or ensure that all initializers are idempotent,* because this is not dealt with automatically as with constructors.*/contract Initializable {/*** @dev Indicates that the contract has been initialized.*/bool private initialized;/*** @dev Indicates that the contract is in the process of being initialized.*/bool private initializing;
1234567891011121314151617181920212223242526// SPDX-License-Identifier: MITpragma solidity >=0.6.0 <0.8.0;/*** @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.** These functions can be used to verify that a message was signed by the holder* of the private keys of a given address.*/library ECDSAUpgradeable {/*** @dev Returns the address that signed a hashed message (`hash`) with* `signature`. This address can then be used for verification purposes.** The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:* this function rejects them by requiring the `s` value to be in the lower* half order, and the `v` value to be either 27 or 28.** IMPORTANT: `hash` _must_ be the result of a hash operation for the* verification to be secure: it is possible to craft signatures that* recover to arbitrary addresses for non-hashed data. A safe way to ensure* this is by receiving a hash of the original message (which may otherwise* be too long), and then calling {toEthSignedMessageHash} on it.*/function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
1234567891011121314151617181920212223242526// SPDX-License-Identifier: MITpragma solidity >=0.6.0 <0.8.0;import "../Initializable.sol";/*** @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.** The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,* thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding* they need in their contracts using a combination of `abi.encode` and `keccak256`.** This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding* scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA* ({_hashTypedDataV4}).** The implementation of the domain separator was designed to be as efficient as possible while still properly updating* the chain id to protect against replay attacks on an eventual fork of the chain.** NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method* https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].*/abstract contract EIP712Upgradeable is Initializable {/* solhint-disable var-name-mixedcase */bytes32 private _HASHED_NAME;bytes32 private _HASHED_VERSION;
1234567891011121314151617181920212223242526// SPDX-License-Identifier: MITpragma solidity >=0.6.5 <0.8.0;import "../ERC20Upgradeable.sol";import "./IERC20PermitUpgradeable.sol";import "../cryptography/ECDSAUpgradeable.sol";import "../utils/CountersUpgradeable.sol";import "./EIP712Upgradeable.sol";import "../Initializable.sol";/*** @dev Implementation of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in* https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].** Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by* presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't* need to send a transaction, and thus is not required to hold Ether at all.*/abstract contract ERC20PermitUpgradeable isInitializable,ERC20Upgradeable,IERC20PermitUpgradeable,EIP712Upgradeable{using CountersUpgradeable for CountersUpgradeable.Counter;
1234567891011121314151617181920212223242526// SPDX-License-Identifier: MITpragma solidity >=0.6.0 <0.8.0;/*** @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in* https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].** Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by* presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't* need to send a transaction, and thus is not required to hold Ether at all.*/interface IERC20PermitUpgradeable {/*** @dev Sets `amount` as the allowance of `spender` over `owner`'s tokens,* given `owner`'s signed approval.** IMPORTANT: The same issues {IERC20-approve} has related to transaction* ordering also apply here.** Emits an {Approval} event.** Requirements:** - `spender` cannot be the zero address.* - `deadline` must be a timestamp in the future.
1234567891011121314151617181920212223242526// SPDX-License-Identifier: MITpragma solidity >=0.6.0 <0.8.0;/*** @dev Wrappers over Solidity's arithmetic operations with added overflow* checks.** Arithmetic operations in Solidity wrap on overflow. This can easily result* in bugs, because programmers usually assume that an overflow raises an* error, which is the standard behavior in high level programming languages.* `SafeMath` restores this intuition by reverting the transaction when an* operation overflows.** Using this library instead of the unchecked operations eliminates an entire* class of bugs, so it's recommended to use it always.*/library SafeMathUpgradeable {/*** @dev Returns the addition of two unsigned integers, reverting on* overflow.** Counterpart to Solidity's `+` operator.** Requirements:*
1234567891011121314151617181920212223242526// SPDX-License-Identifier: MITpragma solidity >=0.6.0 <0.8.0;import "../math/SafeMathUpgradeable.sol";/*** @title Counters* @author Matt Condon (@shrugs)* @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number* of elements in a mapping, issuing ERC721 ids, or counting request ids.** Include with `using Counters for Counters.Counter;`* Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the {SafeMath}* overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never* directly accessed.*/library CountersUpgradeable {using SafeMathUpgradeable for uint256;struct Counter {// This variable should never be directly accessed by users of the library: interactions must be restricted to// the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add// this feature: see https://github.com/ethereum/solidity/issues/4637uint256 _value; // default: 0}
1234567891011121314151617181920{"remappings": [],"optimizer": {"enabled": true,"runs": 200},"evmVersion": "istanbul","libraries": {"": {}},"outputSelection": {"*": {"*": ["evm.bytecode","evm.deployedBytecode","abi"]}}}
[{"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"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"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":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burnOtoken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"collateralAsset","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"controller","outputs":[{"internalType":"address","name":"","type":"address"}],"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":[],"name":"expiryTimestamp","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getOtokenDetails","outputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"bool","name":"","type":"bool"}],"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":[{"internalType":"address","name":"_addressBook","type":"address"},{"internalType":"address","name":"_underlyingAsset","type":"address"},{"internalType":"address","name":"_strikeAsset","type":"address"},{"internalType":"address","name":"_collateralAsset","type":"address"},{"internalType":"uint256","name":"_strikePrice","type":"uint256"},{"internalType":"uint256","name":"_expiryTimestamp","type":"uint256"},{"internalType":"bool","name":"_isPut","type":"bool"}],"name":"init","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"isPut","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mintOtoken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"strikeAsset","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"strikePrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","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":[],"name":"underlyingAsset","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]
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