AlgolaToken
0x2c1ee949a32052cb372b736d4af00a9f2b9335c4
Verification
Verified
v0.8.26+commit.8a97fa7a
Type
Contract
8,461 bytes
ABI entries
52
16 read · 10 write
License
none
Contract information
- Address
- 0x2c1ee949a32052cb372b736d4af00a9f2b9335c4
- Chain
- Robinhood Chain (4663)
- Compiler
- v0.8.26+commit.8a97fa7a
- Optimization
- Enabled
- Creator
- 0x4ddDB7C750…C8347377e5
- Creation tx
- 0x375448b301…4975e7f152
Token
- Name
- Algola
- Symbol
- ALO
- Decimals
- 18
- Holders
- 286
- Market
- View token page →
Read contract (16)
DOMAIN_SEPARATOR() → bytes32
MAX_SUPPLY() → uint256
allowance(address, address) → uint256
balanceOf(address) → uint256
decimals() → uint8
eip712Domain() → bytes1, string, string, uint256, address, bytes32, uint256[]
metadataURI() → string
name() → string
nonces(address) → uint256
owner() → address
pendingOwner() → address
socials() → tuple
socialsURI() → string
symbol() → string
tokenURI() → string
totalSupply() → uint256
Events (8)
ApprovalEIP712DomainChangedMetadataURIUpdatedOwnershipTransferStartedOwnershipTransferredSocialsURIUpdatedSocialsUpdatedTransfer
ABI
[
{
"inputs": [
{
"internalType": "address",
"name": "initialOwner",
"type": "address"
},
{
"internalType": "address",
"name": "initialHolder",
"type": "address"
},
{
"internalType": "string",
"name": "initialMetadataURI",
"type": "string"
},
{
"internalType": "string",
"name": "initialSocialsURI",
"type": "string"
},
{
"components": [
{
"internalType": "string",
"name": "website",
"type": "string"
},
{
"internalType": "string",
"name": "twitter",
"type": "string"
},
{
"internalType": "string",
"name": "telegram",
"type": "string"
},
{
"internalType": "string",
"name": "discord",
"type": "string"
}
],
"internalType": "struct AlgolaToken.Socials",
"name": "initialSocials",
"type": "tuple"
}
],
"stateMutability": "nonpayable",
"type": "constructor"
},
{
"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": [
{
"internalType": "address",
"name": "owner",
"type": "address"
}
],
"name": "OwnableInvalidOwner",
"type": "error"
},
{
"inputs": [
{
"internalType": "address",
"name": "account",
"type": "address"
}
],
"name": "OwnableUnauthorizedAccount",
"type": "error"
},
{
"inputs": [
{
"internalType": "string",
"name": "str",
"type": "string"
}
],
"name": "StringTooLong",
"type": "error"
},
{
"inputs": [],
"name": "ZeroAddress",
"type": "error"
},
{
"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": "string",
"name": "previousURI",
"type": "string"
},
{
"indexed": false,
"internalType": "string",
"name": "newURI",
"type": "string"
}
],
"name": "MetadataURIUpdated",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "previousOwner",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "newOwner",
"type": "address"
}
],
"name": "OwnershipTransferStarted",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "previousOwner",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "newOwner",
"type": "address"
}
],
"name": "OwnershipTransferred",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"internalType": "string",
"name": "previousURI",
"type": "string"
},
{
"indexed": false,
"internalType": "string",
"name": "newURI",
"type": "string"
}
],
"name": "SocialsURIUpdated",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"internalType": "string",
"name": "website",
"type": "string"
},
{
"indexed": false,
"internalType": "string",
"name": "twitter",
"type": "string"
},
{
"indexed": false,
"internalType": "string",
"name": "telegram",
"type": "string"
},
{
"indexed": false,
"internalType": "string",
"name": "discord",
"type": "string"
}
],
"name": "SocialsUpdated",
"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": [],
"name": "MAX_SUPPLY",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "acceptOwnership",
"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": "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": [],
"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": [],
"name": "metadataURI",
"outputs": [
{
"internalType": "string",
"name": "",
"type": "string"
}
],
"stateMutability": "view",
"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": [],
"name": "owner",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "pendingOwner",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"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": [],
"name": "renounceOwnership",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "string",
"name": "newURI",
"type": "string"
}
],
"name": "setMetadataURI",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"components": [
{
"internalType": "string",
"name": "website",
"type": "string"
},
{
"internalType": "string",
"name": "twitter",
"type": "string"
},
{
"internalType": "string",
"name": "telegram",
"type": "string"
},
{
"internalType": "string",
"name": "discord",
"type": "string"
}
],
"internalType": "struct AlgolaToken.Socials",
"name": "newSocials",
"type": "tuple"
}
],
"name": "setSocials",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "string",
"name": "newURI",
"type": "string"
}
],
"name": "setSocialsURI",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [],
"name": "socials",
"outputs": [
{
"components": [
{
"internalType": "string",
"name": "website",
"type": "string"
},
{
"internalType": "string",
"name": "twitter",
"type": "string"
},
{
"internalType": "string",
"name": "telegram",
"type": "string"
},
{
"internalType": "string",
"name": "discord",
"type": "string"
}
],
"internalType": "struct AlgolaToken.Socials",
"name": "",
"type": "tuple"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "socialsURI",
"outputs": [
{
"internalType": "string",
"name": "",
"type": "string"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "symbol",
"outputs": [
{
"internalType": "string",
"name": "",
"type": "string"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "tokenURI",
"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"
},
{
"inputs": [
{
"internalType": "address",
"name": "newOwner",
"type": "address"
}
],
"name": "transferOwnership",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
}
]Source code
// SPDX-License-Identifier: MIT
pragma solidity 0.8.26;
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {ERC20Permit} from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Permit.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {Ownable2Step} from "@openzeppelin/contracts/access/Ownable2Step.sol";
/// @title Algola
/// @notice Fixed-supply ERC-20 with owner-managed off-chain metadata and social links.
contract AlgolaToken is ERC20, ERC20Permit, Ownable2Step {
uint256 public constant MAX_SUPPLY = 1_000_000_000 ether;
struct Socials {
string website;
string twitter;
string telegram;
string discord;
}
string public metadataURI;
string public socialsURI;
Socials private _socials;
event MetadataURIUpdated(string previousURI, string newURI);
event SocialsURIUpdated(string previousURI, string newURI);
event SocialsUpdated(
string website,
string twitter,
string telegram,
string discord
);
error ZeroAddress();
constructor(
address initialOwner,
address initialHolder,
string memory initialMetadataURI,
string memory initialSocialsURI,
Socials memory initialSocials
)
ERC20("Algola", "ALO")
ERC20Permit("Algola")
Ownable(initialOwner)
{
if (initialHolder == address(0)) revert ZeroAddress();
metadataURI = initialMetadataURI;
socialsURI = initialSocialsURI;
_socials = initialSocials;
_mint(initialHolder, MAX_SUPPLY);
emit MetadataURIUpdated("", initialMetadataURI);
emit SocialsURIUpdated("", initialSocialsURI);
emit SocialsUpdated(
initialSocials.website,
initialSocials.twitter,
initialSocials.telegram,
initialSocials.discord
);
}
/// @notice Non-standard ERC-20 metadata helper used by indexers and launch UIs.
function tokenURI() external view returns (string memory) {
return metadataURI;
}
function socials() external view returns (Socials memory) {
return _socials;
}
function setMetadataURI(string calldata newURI) external onlyOwner {
emit MetadataURIUpdated(metadataURI, newURI);
metadataURI = newURI;
}
function setSocialsURI(string calldata newURI) external onlyOwner {
emit SocialsURIUpdated(socialsURI, newURI);
socialsURI = newURI;
}
function setSocials(Socials calldata newSocials) external onlyOwner {
_socials = newSocials;
emit SocialsUpdated(
newSocials.website,
newSocials.twitter,
newSocials.telegram,
newSocials.discord
);
}
}
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