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
- 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. - 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.
- 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
- Sequence
- #6
- Score
- 28 → 28 (0)
- Cluster
- mainnet-beta
- Slot
- 445504976
- Off-chain at
- 2026-09-09T03:04:59.293Z
- Anchored at
- —
- Block time
- —
Independent verification
- 1. Database (off-chain)
- 2Fk78E7PvY4J4qUduVbnpUiQbFnNq4SfDBGyXjfhG2C5
- 2. Recomputed (your browser)
- computing…
- 3. On-chain (Solana memo)
- fetching…
Canonical bytes hashed (699 chars)
{"actor":"reviewer","artifact_identity":"36f7c205ddf03759781c45701c7b099c","decided_at":"2026-09-07T15:33:26.090377+00:00","decision":"review","findings_count":37,"findings_rows_hash":"e654b5adad1b5cf3f4dd5a81b0c648dedc33f3a9a774a7374f9c08fe88b96ce5","investigation_id":"0c56d875-ca56-4175-b95f-c50e5fe7e1a2","mode":"findings_only_retroactive","new_score":28,"page_content_hash":"a204cbae00497e2d10b62cba38aff5e6b7ca23a50e742239f18e525e8a0ef8f6","page_slug":"kucoin","prev_score":28,"reason":"Findings-only fact-check (retroactive anchor of stored findings)","score_delta":0,"sequence_num":6,"submission_content_hash":null,"submission_id":null,"submission_kind":null,"submission_valence":null,"v":1}