USD₮0

Arbitrum One ERC-20 Token

0xfd086bc7cd5c481dcc9c85ebe478a1c0b69fcbb9

Proxy 實作合約： 0x3263cd783823d04a6b9819517e0e6840d37ca3f4

Solidity v0.8.4+commit.c7e474f2

Fungible token following the ERC-20 standard.

🤖
透過你的 AI 查詢此合約
參考： usdt-arbitrum 0xfd086bc7cd5c481dcc9c85ebe478a1c0b69fcbb9
範例提示詞： "Tell me the current state of usdt-arbitrum"
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Block #25,177,575

Detected upgradeable, mintable, and ownable controls from the verified ABI.

Upgradeable Mintable Ownable

當前控制

Implementation
0x3263cd783823d04a6b9819517e0e6840d37ca3f4 ↗ Arbiscan → smarts proxy
Owner
0x4dff9b5b0143e642a3f63a5bcf2d1c328e600bf8 ↗ Arbiscan → smarts

概覽

讀取函式
18
寫入函式
28
事件
13

讀取函式

Block #25,177,575 · just now
CANCEL_AUTHORIZATION_TYPEHASH() view → 0x158b0a9edf7a828aad02f63cd515c68ef2f50ba807396f6d12842833a1597429

Returns the EIP-712 typehash used to cancel previously granted authorizations.✨ AI

回傳值

名稱 類型 描述
— bytes32 bytes32 EIP-712 typehash used to identify the cancel-authorization struct in signatures.✨ AI
DOMAIN_SEPARATOR() view → 0x566af68fb471b22d6421762f84aa7bd761c670a2e4d5c8a47d4085d5957b127c

Returns the EIP-712 domain separator used for permit and typed-data signatures.✨ AI

回傳值

名稱 類型 描述
— bytes32 The EIP-712 domain separator (bytes32) used to construct signed permit messages.✨ AI
RECEIVE_WITH_AUTHORIZATION_TYPEHASH() view → 0xd099cc98ef71107a616c4f0f941f04c322d8e254fe26b3c6668db87aae413de8

Get the EIP-712 typehash used for receiveWithAuthorization authorizations.✨ AI

回傳值

名稱 類型 描述
— bytes32 The bytes32 EIP-712 typehash for the receiveWithAuthorization authorization struct.✨ AI
TRANSFER_WITH_AUTHORIZATION_TYPEHASH() view → 0x7c7c6cdb67a18743f49ec6fa9b35f50d52ed05cbed4cc592e13b44501c1a2267

Returns the EIP-712 type hash used for transferWithAuthorization signatures.✨ AI

回傳值

名稱 類型 描述
— bytes32 The bytes32 EIP-712 typehash for the transferWithAuthorization struct.✨ AI
USDT0_L1_LOCKBOX() view → 0x6c96de32cea08842dcc4058c14d3aaad7fa41dee

Returns the L1 lockbox address used for USDT in the Arbitrum bridge.✨ AI

回傳值

名稱 類型 描述
— address Address of the USDT v0 L1 lockbox contract used by the bridge.✨ AI
allowance(owner: address, spender: address) view

Return the remaining number of tokens that spender is allowed to transfer from owner.✨ AI

開發者： See {IERC20-allowance}.

參數

名稱 類型 描述
owner address Address that owns the tokens.✨ AI
spender address Address approved to spend the owner's tokens.✨ AI

回傳值

名稱 類型 描述
— uint256 Remaining allowance expressed in the token's smallest units (uint256).✨ AI
authorizationState(authorizer: address, nonce: bytes32) view

Returns the state of an authorization

開發者： Nonces are randomly generated 32-byte data unique to the authorizer's address

參數

名稱 類型 描述
authorizer address Authorizer's address
nonce bytes32 Nonce of the authorization

回傳值

名稱 類型 描述
— bool True if the nonce is used
balanceOf(account: address) view

Returns the token balance of the given account.✨ AI

開發者： See {IERC20-balanceOf}.

參數

名稱 類型 描述
account address Address whose token balance will be returned.✨ AI

回傳值

名稱 類型 描述
— uint256 The token balance of the specified account in the token's smallest units (uint256).✨ AI
decimals() view → 6

Returns the number of decimal places used by the token.✨ AI

開發者： 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}.

回傳值

名稱 類型 描述
— uint8 The token's decimals as a uint8, indicating how many decimal places the token uses.✨ AI
isBlocked(address) view

Check whether the given account is blocked from transfers or other token actions.✨ AI

參數

名稱 類型 描述
— address

回傳值

名稱 類型 描述
— bool True if the address is blocked and subject to transfer restrictions, false otherwise.✨ AI
isTrusted(address) view

Check whether a given address is marked trusted by the token contract.✨ AI

參數

名稱 類型 描述
— address

回傳值

名稱 類型 描述
— bool True if the address is trusted and may use trusted-only features; otherwise false.✨ AI
l1Address() view → 0x0000000000000000000000000000000000000000

Returns the L1 (Layer 1) linked address for this Arbitrum token.✨ AI

回傳值

名稱 類型 描述
— address address of layer 1 token
name() view → USD₮0

Returns the token's name as a human-readable string.✨ AI

開發者： Returns the name of the token.

回傳值

名稱 類型 描述
— string The token's human-readable name string, as specified by the ERC-20 contract.✨ AI
nonces(owner: address) view

Returns the current nonce for an account used to build permit signatures.✨ AI

開發者： See {IERC20Permit-nonces}.

參數

名稱 類型 描述
owner address Address whose nonce is returned for use with permit signatures.✨ AI

回傳值

名稱 類型 描述
— uint256 Current nonce value for the given owner, used to prevent replay of permit signatures.✨ AI
oftContract() view → 0x14e4a1b13bf7f943c8ff7c51fb60fa964a298d92

Returns the OFT contract address used by this extension.✨ AI

回傳值

名稱 類型 描述
— address The address of the OFT contract associated with this extension.✨ AI
owner() view → 0x4dff9b5b0143e642a3f63a5bcf2d1c328e600bf8

Returns the address of the account that owns and controls this contract.✨ AI

開發者： Returns the address of the current owner.

回傳值

名稱 類型 描述
— address The contract owner's address.✨ AI
symbol() view → USD₮0

Returns the token's short symbol (ticker).✨ AI

開發者： Returns the symbol of the token, usually a shorter version of the name.

回傳值

名稱 類型 描述
— string The token's short symbol (ticker), returned as a string.✨ AI
totalSupply() view → 982,889,984.56 USD₮0

Returns the total number of tokens in circulation for this ERC-20 contract.✨ AI

開發者： See {IERC20-totalSupply}.

回傳值

名稱 類型 描述
— uint256 The total token supply as a uint256 representing all tokens in existence.✨ AI

寫入函式

addToBlockedList(_user: address) nonpayable

Adds an address to the token's blocked list, preventing that address from transferring tokens.✨ AI

參數

名稱 類型 描述
_user address Address to add to the contract's blocked list.✨ AI
approve(spender: address, amount: uint256) nonpayable

Set spender's allowance to amount so they can spend up to that many tokens on your behalf.✨ AI

開發者： See {IERC20-approve}. Requirements: - `spender` cannot be the zero address.

參數

名稱 類型 描述
spender address Address allowed to spend tokens.✨ AI
amount uint256 Number of tokens the spender is allowed to use.✨ AI

回傳值

名稱 類型 描述
— bool True if the approval succeeded.✨ AI
bridgeBurn(account: address, amount: uint256) nonpayable

should decrease token supply by amount, and should (probably) only be callable by the L1 bridge.

參數

名稱 類型 描述
account address
amount uint256
bridgeMint(account: address, amount: uint256) nonpayable

should increase token supply by amount, and should (probably) only be callable by the L1 bridge.

參數

名稱 類型 描述
account address
amount uint256
burn(_from: address, _amount: uint256) nonpayable

Burns _amount tokens from _from, decreasing the account balance and total supply.✨ AI

參數

名稱 類型 描述
_from address Address whose tokens will be burned.✨ AI
_amount uint256 Amount of tokens to burn, in the token's smallest unit.✨ AI
cancelAuthorization(authorizer: address, nonce: bytes32, v: uint8, r: bytes32, s: bytes32) nonpayable

Attempt to cancel an authorization

參數

名稱 類型 描述
authorizer address Authorizer's address
nonce bytes32 Nonce of the authorization
v uint8 v of the signature
r bytes32 r of the signature
s bytes32 s of the signature
cancelAuthorization(authorizer: address, nonce: bytes32, signature: bytes) nonpayable

Attempt to cancel an authorization

參數

名稱 類型 描述
authorizer address Authorizer's address
nonce bytes32 Nonce of the authorization
signature bytes
decreaseAllowance(spender: address, subtractedValue: uint256) nonpayable

Decreases the caller's ERC-20 allowance granted to spender by subtractedValue.✨ AI

開發者： 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`.

參數

名稱 類型 描述
spender address Address allowed to spend tokens on behalf of the caller.✨ AI
subtractedValue uint256 Amount to subtract from the spender's current allowance.✨ AI

回傳值

名稱 類型 描述
— bool True if the allowance was decreased successfully.✨ AI
destroyBlockedFunds(_blockedUser: address) nonpayable

Permanently destroys all tokens held by a blocked account and reduces total supply.✨ AI

開發者： Callable only by an authorized role; subtracts the user's balance from totalSupply, sets balance to zero, and emits a Transfer to address(0).✨ AI

參數

名稱 類型 描述
_blockedUser address Address whose token balance will be destroyed because the account is blocked.✨ AI
increaseAllowance(spender: address, addedValue: uint256) nonpayable

Increase the ERC-20 allowance granted to spender by addedValue and return true on success.✨ AI

開發者： 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.

參數

名稱 類型 描述
spender address Address allowed to spend tokens.✨ AI
addedValue uint256 Amount to add to spender's current allowance.✨ AI

回傳值

名稱 類型 描述
— bool True if the approval amount was successfully increased.✨ AI
initialize(_name: string, _symbol: string, _decimals: uint8) nonpayable

Initializes the ERC-20 token with the given name, symbol, and decimals.✨ AI

參數

名稱 類型 描述
_name string Token name used for display.✨ AI
_symbol string Token symbol or ticker used for display.✨ AI
_decimals uint8 Number of decimal places for token amounts (uint8).✨ AI
migrate(_name: string, _symbol: string, _oftContract: address) nonpayable

Migrate the token by setting a new name, symbol, and linking an OFT contract.✨ AI

參數

名稱 類型 描述
_name string New token name to set during migration.✨ AI
_symbol string New token symbol to set during migration.✨ AI
_oftContract address Address of the OFT contract to link for cross-chain operations.✨ AI
mint(_destination: address, _amount: uint256) nonpayable

Mint tokens to the specified destination address.✨ AI

參數

名稱 類型 描述
_destination address Address that will receive the newly minted tokens.✨ AI
_amount uint256 Number of tokens to mint (in token base units).✨ AI
multiTransfer(_recipients: address[], _values: uint256[]) nonpayable

Transfer tokens to multiple recipients in a single transaction.✨ AI

參數

名稱 類型 描述
_recipients address[] Array of recipient addresses to receive tokens, matched by index to _values.✨ AI
_values uint256[] Array of token amounts (in smallest unit) corresponding by index to _recipients.✨ AI
permit(owner_: address, spender: address, value: uint256, deadline: uint256, signature: bytes) nonpayable

Set spender allowance using the owner's off-chain signature, without an on-chain owner transaction.✨ AI

開發者： See {IERC20Permit-permit}.

參數

名稱 類型 描述
owner_ address Address of the token holder granting approval.✨ AI
spender address Address receiving the allowance.✨ AI
value uint256 Amount of tokens to approve (uint256).✨ AI
deadline uint256 Unix timestamp after which the permit is invalid.✨ AI
signature bytes
permit(owner_: address, spender: address, value: uint256, deadline: uint256, v: uint8, r: bytes32, s: bytes32) nonpayable

Set spender allowance using the owner's off-chain signature, without an on-chain owner transaction.✨ AI

開發者： See {IERC20Permit-permit}.

參數

名稱 類型 描述
owner_ address Address of the token holder granting approval.✨ AI
spender address Address receiving the allowance.✨ AI
value uint256 Amount of tokens to approve (uint256).✨ AI
deadline uint256 Unix timestamp after which the permit is invalid.✨ AI
v uint8 Recovery byte of the owner's signature.✨ AI
r bytes32 First 32 bytes of the owner's signature.✨ AI
s bytes32 Second 32 bytes of the owner's signature.✨ AI
receiveWithAuthorization(from: address, to: address, value: uint256, validAfter: uint256, validBefore: uint256, nonce: bytes32, signature: bytes) nonpayable

Receive a transfer with a signed authorization from the payer

開發者： This has an additional check to ensure that the payee's address matches the caller of this function to prevent front-running attacks.

參數

名稱 類型 描述
from address Payer's address (Authorizer)
to address Payee's address
value uint256 Amount to be transferred
validAfter uint256 The time after which this is valid (unix time)
validBefore uint256 The time before which this is valid (unix time)
nonce bytes32 Unique nonce
signature bytes
receiveWithAuthorization(from: address, to: address, value: uint256, validAfter: uint256, validBefore: uint256, nonce: bytes32, v: uint8, r: bytes32, s: bytes32) nonpayable

Receive a transfer with a signed authorization from the payer

開發者： This has an additional check to ensure that the payee's address matches the caller of this function to prevent front-running attacks.

參數

名稱 類型 描述
from address Payer's address (Authorizer)
to address Payee's address
value uint256 Amount to be transferred
validAfter uint256 The time after which this is valid (unix time)
validBefore uint256 The time before which this is valid (unix time)
nonce bytes32 Unique nonce
v uint8 v of the signature
r bytes32 r of the signature
s bytes32 s of the signature
redeem(_amount: uint256) nonpayable

Redeem the specified amount of tokens for their underlying value.✨ AI

參數

名稱 類型 描述
_amount uint256 Amount of tokens to redeem.✨ AI
removeFromBlockedList(_user: address) nonpayable

參數

名稱 類型 描述
_user address
renounceOwnership() nonpayable
開發者： 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.
setOFTContract(_oftContract: address) nonpayable

參數

名稱 類型 描述
_oftContract address
transfer(recipient: address, amount: uint256) nonpayable
開發者： See {IERC20-transfer}. Requirements: - `recipient` cannot be the zero address. - the caller must have a balance of at least `amount`.

參數

名稱 類型 描述
recipient address
amount uint256

回傳值

名稱 類型 描述
— bool
transferFrom(_sender: address, _recipient: address, _amount: uint256) nonpayable
開發者： 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`.

參數

名稱 類型 描述
_sender address
_recipient address
_amount uint256

回傳值

名稱 類型 描述
— bool
transferOwnership(newOwner: address) nonpayable
開發者： Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner.

參數

名稱 類型 描述
newOwner address
transferWithAuthorization(from: address, to: address, value: uint256, validAfter: uint256, validBefore: uint256, nonce: bytes32, signature: bytes) nonpayable

Execute a transfer with a signed authorization

參數

名稱 類型 描述
from address Payer's address (Authorizer)
to address Payee's address
value uint256 Amount to be transferred
validAfter uint256 The time after which this is valid (unix time)
validBefore uint256 The time before which this is valid (unix time)
nonce bytes32 Unique nonce
signature bytes
transferWithAuthorization(from: address, to: address, value: uint256, validAfter: uint256, validBefore: uint256, nonce: bytes32, v: uint8, r: bytes32, s: bytes32) nonpayable

Execute a transfer with a signed authorization

參數

名稱 類型 描述
from address Payer's address (Authorizer)
to address Payee's address
value uint256 Amount to be transferred
validAfter uint256 The time after which this is valid (unix time)
validBefore uint256 The time before which this is valid (unix time)
nonce bytes32 Unique nonce
v uint8 v of the signature
r bytes32 r of the signature
s bytes32 s of the signature
updateNameAndSymbol(_name: string, _symbol: string) nonpayable

參數

名稱 類型 描述
_name string
_symbol string

事件

Approval(owner: address, spender: address, value: uint256)
名稱 類型 已索引 描述
owner address ✓
spender address ✓
value uint256
AuthorizationCanceled(authorizer: address, nonce: bytes32)
名稱 類型 已索引 描述
authorizer address ✓
nonce bytes32 ✓
AuthorizationUsed(authorizer: address, nonce: bytes32)
名稱 類型 已索引 描述
authorizer address ✓
nonce bytes32 ✓
BlockPlaced(_user: address)
名稱 類型 已索引 描述
_user address ✓
BlockReleased(_user: address)
名稱 類型 已索引 描述
_user address ✓
Burn(from: address, amount: uint256)
名稱 類型 已索引 描述
from address ✓
amount uint256
DestroyedBlockedFunds(_blockedUser: address, _balance: uint256)
名稱 類型 已索引 描述
_blockedUser address ✓
_balance uint256
LogSetOFTContract(oftContract: address)
名稱 類型 已索引 描述
oftContract address ✓
LogUpdateNameAndSymbol(name: string, symbol: string)
名稱 類型 已索引 描述
name string
symbol string
Mint(_destination: address, _amount: uint256)
名稱 類型 已索引 描述
_destination address ✓
_amount uint256
OwnershipTransferred(previousOwner: address, newOwner: address)
名稱 類型 已索引 描述
previousOwner address ✓
newOwner address ✓
Redeem(_amount: uint256)
名稱 類型 已索引 描述
_amount uint256
Transfer(from: address, to: address, value: uint256)
名稱 類型 已索引 描述
from address ✓
to address ✓
value uint256