Signing

Signing on Paxeer works through standard EVM libraries and wallet standards. The methods available depend on which wallet the user has connected.

Wallet Signing Support

Method	Standard	Paxeer Global Wallet	MetaMask	WalletConnect wallets
`personal_sign`	EIP-191	Supported	Supported	Wallet-dependent
`eth_signTypedData_v4`	EIP-712	Supported	Supported	Wallet-dependent
`eth_sign`	Legacy	Not recommended	Supported	Wallet-dependent
Transaction signing	-	Supported	Supported	Supported

Do not assume all wallets support all methods. Always handle rejection gracefully.

Personal Sign

viem

import { createWalletClient, custom } from 'viem';
import { sei } from 'viem/chains';

const client = createWalletClient({
  chain: sei,
  transport: custom(window.ethereum),
});

const [account] = await client.getAddresses();

const signature = await client.signMessage({
  account,
  message: 'Hello Paxeer',
});

ethers

import { ethers } from 'ethers';

const provider = new ethers.BrowserProvider(window.ethereum);
const signer = await provider.getSigner();

const signature = await signer.signMessage('Hello Paxeer');

EIP-712 Typed Data

viem

const [account] = await client.getAddresses();

const signature = await client.signTypedData({
  account,
  domain: {
    name: 'My App',
    version: '1',
    chainId: 1329, // Paxeer mainnet
    verifyingContract: '0xContractAddress',
  },
  types: {
    Order: [
      { name: 'maker', type: 'address' },
      { name: 'amount', type: 'uint256' },
      { name: 'expiry', type: 'uint256' },
    ],
  },
  primaryType: 'Order',
  message: {
    maker: account,
    amount: 1000000n,
    expiry: BigInt(Math.floor(Date.now() / 1000) + 3600),
  },
});

ethers

import { ethers } from 'ethers';

const provider = new ethers.BrowserProvider(window.ethereum);
const signer = await provider.getSigner();

const domain = {
  name: 'My App',
  version: '1',
  chainId: 1329,
  verifyingContract: '0xContractAddress',
};

const types = {
  Order: [
    { name: 'maker', type: 'address' },
    { name: 'amount', type: 'uint256' },
    { name: 'expiry', type: 'uint256' },
  ],
};

const value = {
  maker: await signer.getAddress(),
  amount: 1000000n,
  expiry: BigInt(Math.floor(Date.now() / 1000) + 3600),
};

const signature = await signer.signTypedData(domain, types, value);

Verifying Signatures

viem

import { verifyMessage, verifyTypedData } from 'viem';

// Verify personal sign
const valid = await verifyMessage({
  address: '0xSignerAddress',
  message: 'Hello Paxeer',
  signature,
});

// Verify EIP-712
const validTyped = await verifyTypedData({
  address: '0xSignerAddress',
  domain,
  types,
  primaryType: 'Order',
  message: value,
  signature,
});

EIP-1271 Contract Signatures

Smart contract wallets on Paxeer can validate signatures via EIP-1271 (isValidSignature). Use viem's verifyMessage with a contract address - it automatically uses EIP-1271 when the address is a contract.

viem

const valid = await verifyMessage({
  address: '0xSmartContractWallet',
  message: 'Hello Paxeer',
  signature,
});
// viem calls isValidSignature if the address is a contract