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 · Optimism
- Sequence
- #4
- Score
- 60 → 60 (0)
- Cluster
- mainnet-beta
- Slot
- 445508133
- Off-chain at
- 2026-09-09T03:05:30.409Z
- Anchored at
- —
- Block time
- —
Independent verification
- 1. Database (off-chain)
- HmjAACDhw1THAdTuTCAfaQPpcYjRphKKNUwQ8SGSPf6e
- 2. Recomputed (your browser)
- computing…
- 3. On-chain (Solana memo)
- fetching…
Canonical bytes hashed (701 chars)
{"actor":"reviewer","artifact_identity":"d5b5ee9ddd61b7d9ea5a65464f005f92","decided_at":"2026-09-07T12:52:43.888425+00:00","decision":"review","findings_count":32,"findings_rows_hash":"72cf6f70f7e68d704a01a2d69bfba4dd0c48136f78afc65d6e5a17dcd225dabb","investigation_id":"24659e79-ea23-4b6f-85fd-ff3442c34982","mode":"findings_only_retroactive","new_score":60,"page_content_hash":"1a7a90df50f767bc0ca1d99015e40c487be991c738fc22807840cae7a0196359","page_slug":"optimism","prev_score":60,"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}