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 · SecondFi (Cardano Wallet)
- Sequence
- #4
- Score
- 13 → 13 (0)
- Cluster
- mainnet-beta
- Slot
- 445508851
- Off-chain at
- 2026-09-09T03:05:36.334Z
- Anchored at
- —
- Block time
- —
Independent verification
- 1. Database (off-chain)
- 6tbjkKynn817BL55i1JinNzQhf4BMdnUubLxY1LwGh5e
- 2. Recomputed (your browser)
- computing…
- 3. On-chain (Solana memo)
- fetching…
Canonical bytes hashed (716 chars)
{"actor":"reviewer","artifact_identity":"f91b843a1c904bbe17df4b548db05031","decided_at":"2026-09-07T10:11:49.835293+00:00","decision":"review","findings_count":22,"findings_rows_hash":"740818e77c7478a13bbeb064d703bebe6c11f590d087fef9a0458343f9742b41","investigation_id":"fdd3c427-bdd2-4ada-af57-b950be89225b","mode":"findings_only_retroactive","new_score":13,"page_content_hash":"0b1a43f91501b78c5ec1b9a5dc8644e764209dd356d6b25bd50a4dad4bee33b0","page_slug":"secondfi-cardano-wallet","prev_score":13,"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}