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 · Amazon
- Sequence
- #4
- Score
- 65 → 65 (0)
- Cluster
- mainnet-beta
- Slot
- 445507934
- Off-chain at
- 2026-09-09T03:05:27.747Z
- Anchored at
- —
- Block time
- —
Independent verification
- 1. Database (off-chain)
- 79tJ11QT5nBTHhdgpTXBkkeUdbrsh8rVxoaVxz7bGKKK
- 2. Recomputed (your browser)
- computing…
- 3. On-chain (Solana memo)
- fetching…
Canonical bytes hashed (699 chars)
{"actor":"reviewer","artifact_identity":"c4ec79c2af016856313319a2d2d21e9c","decided_at":"2026-09-06T15:10:53.546236+00:00","decision":"review","findings_count":17,"findings_rows_hash":"11ff9533ea99af05acf042c279e10e0f9c4b742a9ea23cac38bb92f6849d3a8e","investigation_id":"790dd5c1-30b6-4a17-aa4f-3c47575beae8","mode":"findings_only_retroactive","new_score":65,"page_content_hash":"5bbddf59f25ab9c745eea9ed056bac4938ba055a6ee87b82bddfb7816e0267d4","page_slug":"amazon","prev_score":65,"reason":"Findings-only fact-check (retroactive anchor of stored findings)","score_delta":0,"sequence_num":4,"submission_content_hash":null,"submission_id":null,"submission_kind":null,"submission_valence":null,"v":1}