Examples

Basic usage

import { createBlock, verifyBlock, verifyChain } from "json-record";

const enc = new TextEncoder();
const payload = enc.encode("hello world");

const block0 = await createBlock(payload);
const block1 = await createBlock(payload, block0);

console.log(await verifyBlock(block0));
console.log(await verifyBlock(block1));
console.log(await verifyChain([block0, block1]));

Tampering detection

block1.payload[0] ^= 1;

console.log(await verifyBlock(block1)); // false
console.log(await verifyChain([block0, block1])); // false

GitHub · npm