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
- Sequence
- #4
- Score
- 0 → 0 (0)
- Cluster
- mainnet-beta
- Slot
- 445504483
- Off-chain at
- 2026-09-09T03:04:50.735Z
- Anchored at
- —
- Block time
- —
Independent verification
- 1. Database (off-chain)
- J6JYsyLyG6qPZLcrVc6aJRhaX3Mhf93GQhqGV3yM6oX4
- 2. Recomputed (your browser)
- computing…
- 3. On-chain (Solana memo)
- fetching…
Canonical bytes hashed (738 chars)
{"actor":"reviewer","artifact_identity":"17b70d1e16c2d57c1bfce0c5a3b41c2a","decided_at":"2026-09-07T15:30:10.631386+00:00","decision":"review","findings_count":26,"findings_rows_hash":"6dfd8e0706e722a49e178dccbb6f37ac9b5c26cebb215c4167127e71596e3821","investigation_id":"21f8cdaa-79af-44fa-aed9-9888ad52e83e","mode":"findings_only_retroactive","new_score":0,"page_content_hash":"8906178d473aa75b191b3080b617c83925f537fe72475ac2b09f7e891d282d91","page_slug":"fake-metamask-update-phishing-campaign-may-2026","prev_score":0,"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}