Recenze, které nikdo nesmaže.

// nezávislé ověření jednoho záznamu
const {createHash} = require('crypto');
const h = (...p) => createHash('sha256').update(Buffer.concat(p)).digest();
const canon = v => Array.isArray(v) ? '[' + v.map(canon).join(',') + ']'
  : v && typeof v === 'object' ? '{' + Object.keys(v).sort().map(k => JSON.stringify(k) + ':' + canon(v[k])).join(',') + '}'
  : JSON.stringify(v);
const feed = await (await fetch('https://dolvero.com/trust-feed.json')).json();
const r = feed.reviews.find(x => x.leaf && x.leaf.sealed);
const payload = canon({v: 1, kind: 'review', review: JSON.parse(r.payload), signature: r.signature});
let node = h(Buffer.from([0]), Buffer.from('dolvero.leaf.v1'), Buffer.from(r.leaf.salt, 'hex'), h(Buffer.from(payload)));
for (const s of r.leaf.path) node = s.side === 'L'
  ? h(Buffer.from([1]), Buffer.from(s.hash, 'hex'), node)
  : h(Buffer.from([1]), node, Buffer.from(s.hash, 'hex'));
console.log(node.toString('hex') === r.leaf.root ? 'root matches' : 'MISMATCH');