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Verify a decision

Every moderation decision on AVOID.NET is anchored to the Solana blockchain. You don't have to trust us — you can verify cryptographically that we committed to a verdict at a specific moment and have not rewritten it.

How verification works

  1. We commit. When a moderator accepts/rejects a submission, we serialize the decision into deterministic UTF-8 bytes (payload_canonical_string), hash it with SHA-256, encode the digest as base58, and write it to Solana inside an SPL Memo v2 transaction.
  2. We store the bytes. The exact bytes we hashed are stored alongside the decision in our database. Anyone can read them and recompute the hash in any language.
  3. You compare three values. Database hash, your independently-recomputed hash, and the hash inside the on-chain memo. If all three match, the decision is authentic and timestamped.
The on-chain memo format is AVOID.NET|v1|h:<b58-sha256>|d:<id>|t:<iso>

Find a signature on any investigation page's decision log, or run python -m src.verify_decision --signature <sig> for a CLI check.

Decision
review · KuCoin Exchange Hack
View on Solana ↗
Sequence
#2
Score
32 → 32 (0)
Cluster
mainnet-beta
Slot
426274142
Off-chain at
2026-06-13T20:46:24.480Z
Anchored at
—
Block time
—

Independent verification

1. Database (off-chain)
4qWyHZ4tw9aPP6QpxEspAw8Qy3BNEHmvDXHN6aUrbpsh
2. Recomputed (your browser)
computing…
3. On-chain (Solana memo)
fetching…
Canonical bytes hashed (1324 chars)
{"actor":"reviewer","decided_at":"2026-06-13T20:46:24.322Z","decision":"review","investigation_id":"0720b751-fc8c-476c-a495-9e5bf9518394","new_score":32,"page_slug":"kucoin-hack","prev_score":32,"reason":"The page is broadly well-sourced and accurate on major facts: the hack amount, date, attack vector, recovery percentages, and the DOJ/PEKEN guilty plea are all confirmed. The primary accuracy issues are: (1) the BTC and ETH stolen amounts in the hack detail section are internally inconsistent with the primary cited source (CoinDesk), with the BTC figure potentially conflating different source counts; (2) the timeline entry conflates two Chainalysis publications — the September 2020 DeFi laundering post with the February 2021 Lazarus attribution report — and incorrectly dates the Lazarus attribution to October 2020; (3) the treatment of founders Chun Gan and Ke Tang omits the material fact that they entered two-year deferred prosecution agreements rather than pleading guilty. Two cited URLs exhibit link rot (CoinTelegraph 84% recovery article returns 404; one Chainalysis/DOJ URL returned 403), though the claims those sources support are confirmed by other sources.","score_delta":0,"sequence_num":2,"submission_content_hash":null,"submission_id":null,"submission_kind":null,"submission_valence":null,"v":1}