when ed25519breaks,keep your story.

import { QsafeClient, generatePqKeypair, hashMessage, pqSign } from '@qsafe/sdk';
import { Connection, Keypair } from '@solana/web3.js';

const connection = new Connection(process.env.QSAFE_RPC!);
const wallet = Keypair.fromSecretKey(/* your secret key */);
const client = QsafeClient.forWallet(connection, wallet);

// 1. generate the post-quantum keypair offline
const pq = generatePqKeypair();

// 2. register the public key on-chain (chunked upload, sealed at the end)
await client.register(pq.publicKey);

// 3. sign any message with the pq secret key, off-chain
const message = Buffer.from('transfer 10 SOL to alice');
const sig = pqSign(hashMessage(message), pq.secretKey);

// 4. anchor the signature on-chain (chunked upload, then verify_session)
const result = await client.anchorMessage(message, sig);
console.log('verify tx:', result.anchorSignatures.at(-1));