USDB
Blast ERC-20 Token0x4300000000000000000000000000000000000003
Proxy implementation: 0x4ef0d788470e2feb6559b93075ec5be51dba737d
Solidity v0.8.15+commit.e14f2714
Fungible token following the ERC-20 standard.
🤖
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Reference:
0x4300000000000000000000000000000000000003
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mcp.smarts.md
Blast is a docs-only chain on Smarts: source code and ABI are indexed, but live on-chain data (state, recent events, admin profile) is not currently available. AI agents can still query get_contract_info and get_contract_source via MCP.
Overview
Read Functions
22
Write Functions
10
Events
7
Read Functions
BRIDGE()
view
Returns
| Name | Type | Description |
|---|---|---|
| — | address |
DOMAIN_SEPARATOR()
view
Returns
| Name | Type | Description |
|---|---|---|
| — | bytes32 |
PERMIT_TYPEHASH()
view
Returns
| Name | Type | Description |
|---|---|---|
| — | bytes32 |
REMOTE_TOKEN()
view
Returns
| Name | Type | Description |
|---|---|---|
| — | address |
REPORTER()
view
Returns
| Name | Type | Description |
|---|---|---|
| — | address |
allowance(owner: address, spender: address)
view
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.
Parameters
| Name | Type | Description |
|---|---|---|
| owner | address | |
| spender | address |
Returns
| Name | Type | Description |
|---|---|---|
| — | uint256 |
balanceOf(account: address)
view
dev: Returns the amount of tokens owned by `account`.
Parameters
| Name | Type | Description |
|---|---|---|
| account | address |
Returns
| Name | Type | Description |
|---|---|---|
| value | uint256 |
bridge()
view
Legacy getter for BRIDGE.
Returns
| Name | Type | Description |
|---|---|---|
| — | address |
count()
view
Get the total number of shares. Needs to be overridden by the child contract.
Returns
| Name | Type | Description |
|---|---|---|
| — | uint256 | Total number of shares. |
decimals()
view
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`). 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}.
Returns
| Name | Type | Description |
|---|---|---|
| — | uint8 |
eip712Domain()
view
dev: See {EIP-5267}. _Available since v4.9._
Returns
| Name | Type | Description |
|---|---|---|
| fields | bytes1 | |
| name | string | |
| version | string | |
| chainId | uint256 | |
| verifyingContract | address | |
| salt | bytes32 | |
| extensions | uint256[] |
getClaimableAmount(account: address)
view
Query an CLAIMABLE account's claimable yield.
Parameters
| Name | Type | Description |
|---|---|---|
| account | address | Address to query the claimable amount. |
Returns
| Name | Type | Description |
|---|---|---|
| — | uint256 | amount Claimable amount. |
getConfiguration(account: address)
view
Query an account's configured yield mode.
Parameters
| Name | Type | Description |
|---|---|---|
| account | address | Address to query the configuration. |
Returns
| Name | Type | Description |
|---|---|---|
| — | uint8 | Configured yield mode. |
name()
view
dev: Returns the name of the token.
Returns
| Name | Type | Description |
|---|---|---|
| — | string |
nonces(owner: address)
view
dev: See {IERC20Permit-nonces}.
Parameters
| Name | Type | Description |
|---|---|---|
| owner | address |
Returns
| Name | Type | Description |
|---|---|---|
| — | uint256 |
pending()
view
Returns
| Name | Type | Description |
|---|---|---|
| — | uint256 |
price()
view
Returns
| Name | Type | Description |
|---|---|---|
| — | uint256 |
remoteToken()
view
Legacy getter for REMOTE_TOKEN.
Returns
| Name | Type | Description |
|---|---|---|
| — | address |
supportsInterface(_interfaceId: bytes4)
pure
ERC165 interface check function.
Parameters
| Name | Type | Description |
|---|---|---|
| _interfaceId | bytes4 | Interface ID to check. |
Returns
| Name | Type | Description |
|---|---|---|
| — | bool | Whether or not the interface is supported by this contract. |
symbol()
view
dev: Returns the symbol of the token, usually a shorter version of the name.
Returns
| Name | Type | Description |
|---|---|---|
| — | string |
totalSupply()
view
dev: Returns the amount of tokens in existence.
Returns
| Name | Type | Description |
|---|---|---|
| — | uint256 |
version()
view
Returns the full semver contract version.
Returns
| Name | Type | Description |
|---|---|---|
| — | string | Semver contract version as a string. |
Write Functions
addValue(value: uint256)
nonpayable
Report a yield event and update the share price.
Parameters
| Name | Type | Description |
|---|---|---|
| value | uint256 | Amount of new yield |
approve(spender: address, amount: uint256)
nonpayable
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.
Parameters
| Name | Type | Description |
|---|---|---|
| spender | address | |
| amount | uint256 |
Returns
| Name | Type | Description |
|---|---|---|
| — | bool |
burn(_from: address, _amount: uint256)
nonpayable
Allows the StandardBridge on this network to burn tokens.
Parameters
| Name | Type | Description |
|---|---|---|
| _from | address | Address to burn tokens from. |
| _amount | uint256 | Amount of tokens to burn. |
claim(recipient: address, amount: uint256)
nonpayable
Claim yield from a CLAIMABLE account and send to a recipient.
Parameters
| Name | Type | Description |
|---|---|---|
| recipient | address | Address to receive the claimed balance. |
| amount | uint256 | Amount to claim. |
Returns
| Name | Type | Description |
|---|---|---|
| — | uint256 | Amount claimed. |
configure(yieldMode: uint8)
nonpayable
Change the yield mode of the caller and update the balance to reflect the configuration.
Parameters
| Name | Type | Description |
|---|---|---|
| yieldMode | uint8 | Yield mode to configure |
Returns
| Name | Type | Description |
|---|---|---|
| — | uint256 | Current user balance |
initialize()
nonpayable
Initializer
mint(_to: address, _amount: uint256)
nonpayable
Allows the StandardBridge on this network to mint tokens.
Parameters
| Name | Type | Description |
|---|---|---|
| _to | address | Address to mint tokens to. |
| _amount | uint256 | Amount of tokens to mint. |
permit(owner: address, spender: address, value: uint256, deadline: uint256, v: uint8, r: bytes32, s: bytes32)
nonpayable
dev: See {IERC20Permit-permit}.
Parameters
| Name | Type | Description |
|---|---|---|
| owner | address | |
| spender | address | |
| value | uint256 | |
| deadline | uint256 | |
| v | uint8 | |
| r | bytes32 | |
| s | bytes32 |
transfer(to: address, amount: uint256)
nonpayable
dev: Moves `amount` tokens from the caller's account to `to`. Returns a boolean value indicating whether the operation succeeded. Emits a {Transfer} event.
Parameters
| Name | Type | Description |
|---|---|---|
| to | address | |
| amount | uint256 |
Returns
| Name | Type | Description |
|---|---|---|
| — | bool |
transferFrom(from: address, to: address, amount: uint256)
nonpayable
dev: Moves `amount` tokens from `from` to `to` 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.
Parameters
| Name | Type | Description |
|---|---|---|
| from | address | |
| to | address | |
| amount | uint256 |
Returns
| Name | Type | Description |
|---|---|---|
| — | bool |
Events
Approval(owner: address, spender: address, value: uint256)
| Name | Type | Indexed | Description |
|---|---|---|---|
| owner | address | ✓ | |
| spender | address | ✓ | |
| value | uint256 |
Claim(account: address, recipient: address, amount: uint256)
Emitted when a CLAIMABLE account claims their yield.
| Name | Type | Indexed | Description |
|---|---|---|---|
| account | address | ✓ | Address of the account. |
| recipient | address | ✓ | Address of the recipient. |
| amount | uint256 | Amount of yield claimed. |
Configure(account: address, yieldMode: uint8)
Emitted when an account configures their yield mode.
| Name | Type | Indexed | Description |
|---|---|---|---|
| account | address | ✓ | Address of the account. |
| yieldMode | uint8 | Yield mode that was configured. |
EIP712DomainChanged()
Initialized(version: uint8)
| Name | Type | Indexed | Description |
|---|---|---|---|
| version | uint8 |
NewPrice(price: uint256)
Emitted when a new share price is set after a yield event.
| Name | Type | Indexed | Description |
|---|---|---|---|
| price | uint256 |
Transfer(from: address, to: address, value: uint256)
| Name | Type | Indexed | Description |
|---|---|---|---|
| from | address | ✓ | |
| to | address | ✓ | |
| value | uint256 |