Token

HAI Index Token (HAI)

Overview

Max Total Supply

354,189.220926353427142842 HAI

Holders

1,490 (0.00%)

Transfers

510 ( -2.67%)

Market

Price

$1.27 @ 0.000685 ETH (+0.15%)

Onchain Market Cap

Circulating Supply Market Cap

$450,068.00

Other Info

Token Contract (WITH 18 Decimals)

0x10398abc267496e49106b07dd6be13364d10dc71

Transfers
Holders
Info
Contract
Cards

OVERVIEW

Borrow against LSTs & Optimism native assets to get HAI– an overcollateralized & decentralized stablecoin.

UI Multiplier changes (based on UIMultiplierUpdated event). Displayed token amounts are scaled by the active multiplier.

Transaction Hash	Block	Age	Effective	Multiplier	Status

Code
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Similar Match Source Code Similar Match: 0x8DF9703E...C394fc0eF

Constructor

API

Contract Name

SystemCoin

Compiler Version

v0.8.20+commit.a1b79de6

Optimization Enabled

Yes with 10000 runs

Other Settings

paris EvmVersion

License

-NA-

Sol2Uml
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Contract Source Code (Solidity Standard Json-Input format)

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Contract ABI

API

[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AlreadyAuthorized","type":"error"},{"inputs":[],"name":"ECDSAInvalidSignature","type":"error"},{"inputs":[{"internalType":"uint256","name":"length","type":"uint256"}],"name":"ECDSAInvalidSignatureLength","type":"error"},{"inputs":[{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"ECDSAInvalidSignatureS","type":"error"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"allowance","type":"uint256"},{"internalType":"uint256","name":"needed","type":"uint256"}],"name":"ERC20InsufficientAllowance","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"balance","type":"uint256"},{"internalType":"uint256","name":"needed","type":"uint256"}],"name":"ERC20InsufficientBalance","type":"error"},{"inputs":[{"internalType":"address","name":"approver","type":"address"}],"name":"ERC20InvalidApprover","type":"error"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"}],"name":"ERC20InvalidReceiver","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"ERC20InvalidSender","type":"error"},{"inputs":[{"internalType":"address","name":"spender","type":"address"}],"name":"ERC20InvalidSpender","type":"error"},{"inputs":[{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"ERC2612ExpiredSignature","type":"error"},{"inputs":[{"internalType":"address","name":"signer","type":"address"},{"internalType":"address","name":"owner","type":"address"}],"name":"ERC2612InvalidSigner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"currentNonce","type":"uint256"}],"name":"InvalidAccountNonce","type":"error"},{"inputs":[],"name":"InvalidShortString","type":"error"},{"inputs":[],"name":"NotAuthorized","type":"error"},{"inputs":[{"internalType":"string","name":"str","type":"string"}],"name":"StringTooLong","type":"error"},{"inputs":[],"name":"Unauthorized","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_account","type":"address"}],"name":"AddAuthorization","type":"event"},{"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":[],"name":"EIP712DomainChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_account","type":"address"}],"name":"RemoveAuthorization","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":"_account","type":"address"}],"name":"addAuthorization","outputs":[],"stateMutability":"nonpayable","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":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"authorizedAccounts","outputs":[{"internalType":"bool","name":"_authorized","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"authorizedAccounts","outputs":[{"internalType":"address[]","name":"_accounts","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_wad","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"eip712Domain","outputs":[{"internalType":"bytes1","name":"fields","type":"bytes1"},{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"version","type":"string"},{"internalType":"uint256","name":"chainId","type":"uint256"},{"internalType":"address","name":"verifyingContract","type":"address"},{"internalType":"bytes32","name":"salt","type":"bytes32"},{"internalType":"uint256[]","name":"extensions","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_dst","type":"address"},{"internalType":"uint256","name":"_wad","type":"uint256"}],"name":"mint","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":"value","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":[{"internalType":"address","name":"_account","type":"address"}],"name":"removeAuthorization","outputs":[],"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":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]

Deployed Bytecode

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contracts

src/contracts/tokens/SystemCoin.sol
src/interfaces/tokens/ISystemCoin.sol
node_modules/@openzeppelin/contracts/token/ERC20/ERC20.sol
node_modules/@openzeppelin/contracts/token/ERC20/extensions/ERC20Permit.sol
src/contracts/utils/Authorizable.sol
node_modules/@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol
src/interfaces/utils/IAuthorizable.sol
node_modules/@openzeppelin/contracts/token/ERC20/IERC20.sol
node_modules/@openzeppelin/contracts/utils/Context.sol
node_modules/@openzeppelin/contracts/interfaces/draft-IERC6093.sol
node_modules/@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol
node_modules/@openzeppelin/contracts/utils/cryptography/ECDSA.sol
node_modules/@openzeppelin/contracts/utils/cryptography/EIP712.sol
node_modules/@openzeppelin/contracts/utils/Nonces.sol
node_modules/@openzeppelin/contracts/utils/structs/EnumerableSet.sol
node_modules/@openzeppelin/contracts/utils/cryptography/MessageHashUtils.sol
node_modules/@openzeppelin/contracts/utils/ShortStrings.sol
node_modules/@openzeppelin/contracts/interfaces/IERC5267.sol
node_modules/@openzeppelin/contracts/utils/Strings.sol
node_modules/@openzeppelin/contracts/utils/StorageSlot.sol
node_modules/@openzeppelin/contracts/utils/math/Math.sol
node_modules/@openzeppelin/contracts/utils/math/SignedMath.sol

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                                With the Solidity source code interpreter, you can gain insights into the accessibility of functions for different roles, understand the behavior of functions, and receive explanations for events and arguments used in your code. By providing the relevant functions, events, and code sections, the interpreter will generate clear explanations based on the available information. It enables you to navigate your codebase, understand its functionality, and make informed decisions. 

                                Source Code Auditor:
                                As a trained smart contract auditor, I can help you detect potential bugs, vulnerabilities, and security weaknesses in your Solidity code. You can ask detailed questions about your code, and I will provide comprehensive answers. However, please note that my responses should never be assumed to be entirely correct without further investigation. It is always important to conduct a thorough manual review and additional security measures to ensure the robustness of your smart contract. Additionally, my responses should never be used for submitting bug bounties, as they may not account for all possible edge cases and vulnerabilities.

                                Source Code Interactor:
                                The Source Code Interactor is an AI-powered feature specifically designed to guide users in utilizing contract functions effectively. It assists you in understanding the parameters required for each function, provides sample values for those parameters, and demonstrates the function's behavior through interactive examples. Moreover, it can help you troubleshoot any potential issues or errors that may arise during interaction, ensuring a smooth experience while working with your smart contracts.

                                Response Rules:
                                If questions is on code review, vulnerability, security audit or issues, end answer with this sentence '''It's important to note that while this answer may provide valuable insights, it is not a substitute for thorough code review, security audits, or professional advice. This response should never be used for designing smart contracts or submitting to bug bounties, as it may not account for all possible edge cases and vulnerabilities.'''

Transaction Hash	Block	Age	Implementation	Event	Status

Proxy Contract	Transaction Hash	Block	Age	Proxy Type

[ Download: CSV Export ]

A token is a representation of an on-chain or off-chain asset. The token page shows information such as price, total supply, holders, transfers and social links. Learn more about this page in our Knowledge Base.

Update Token Information Page

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Registered and logged in to your OP Mainnet Etherscan account
Verified the contract's source code using our tool here
Been successfully verified as the contract address owner

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Connect a Wallet

Connecting wallet for read function is optional, useful if you want to call certain functions or simply use your wallet's node.

No wallet found

Compiler specific version warnings:

The compiled contract might be susceptible to the Solidity Compiler Bugs below:

UnsoundSpillInMutualRecursion (medium-severity)
LostStorageArrayWriteOnSlotOverflow (low-severity)
VerbatimInvalidDeduplication (low-severity)
FullInlinerNonExpressionSplitArgumentEvaluationOrder (low-severity)
MissingSideEffectsOnSelectorAccess (low-severity)

Tools & Services

Token

Overview

Max Total Supply

Holders

Transfers

Market

Price

Onchain Market Cap

Circulating Supply Market Cap

Other Info

Token Contract (WITH 18 Decimals)

Contract Name

SystemCoin

Compiler Version

Optimization Enabled

Other Settings

License

Contract Source Code (Solidity Standard Json-Input format)

Contract Security Audit

Contract Security Audit

Contract ABI

Deployed Bytecode