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 · ChangeNOW
- Sequence
- #4
- Score
- 32 → 32 (0)
- Cluster
- mainnet-beta
- Slot
- 445607918
- Off-chain at
- 2026-09-09T12:08:28.022Z
- Anchored at
- —
- Block time
- —
Independent verification
- 1. Database (off-chain)
- 6bH2UqrjkqtrZeFWM2PBtXDiKj9niKHWVAPLoJPqyRkj
- 2. Recomputed (your browser)
- computing…
- 3. On-chain (Solana memo)
- fetching…
Canonical bytes hashed (702 chars)
{"actor":"reviewer","artifact_identity":"ffa4121d2f4da69b88708778a5710a95","decided_at":"2026-09-09T04:52:49.974259+00:00","decision":"review","findings_count":18,"findings_rows_hash":"a754e0da9c78529de76aa4717b8c4ba0627381d0d1eff4880efabaa297278ea3","investigation_id":"4363d267-d270-468c-a37f-ca36b140d556","mode":"findings_only_retroactive","new_score":32,"page_content_hash":"663fbd4e817585c7ae2e2b25fc354adf9705bb6a73f0e8dfe790d212e9bd6be4","page_slug":"changenow","prev_score":32,"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}