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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

  1. 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.
  2. 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.
  3. 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 · Vesper Finance
View on Solana ↗
Sequence
#3
Score
62 → 62 (0)
Cluster
mainnet-beta
Slot
464459949
Off-chain at
2026-11-02T10:21:44.361Z
Anchored at
2026-11-02T10:21:58.000Z
Block time
2026-11-02T10:21:58.000Z

Independent verification

1. Database (off-chain)
8hH9dEGds7vGZQgqxacwjMMNZZUrGYbTrhbDPJhmDwie
2. Recomputed (your browser)
computing…
3. On-chain (Solana memo)
fetching…
Canonical bytes hashed (1233 chars)
{"actor":"reviewer","artifact_identity":"3626b18a04da02cf5705fb1196ae3aa3","blocked_count":1,"decided_at":"2026-11-02T10:21:44.296Z","decision":"review","disputed_pct":0.6,"findings_hash":"NNRMeMfNtQBzAvDfrJSB3zWZz5KGU7LybispLGVq4y2","investigation_id":"d91b85b1-e27d-487b-8210-6e5276e87204","judge_def_hash":"8800307026131ea9d5da939d32b9a1f1884b2b84a5de33c8e87931d36f38d0f8","new_score":62,"page_content_hash":"56fdf3c74c94d1a707f46e89b5cecd97375bff5aa9ee2f1108f6fe6c4ba26f32","page_slug":"vesper-finance","prev_score":62,"reason":"The exploit narrative (Nov 2021, Tornado Cash, attacker address) matches Fairyproof. The Dedaub rebase vulnerability and Immunefi bounty are dated 2023 on the page but were 2021 per Immunefi. The Sonne remediation is a governance discussion, not a confirmed approval. Market and TVL figures could not be verified because the sources were blocked. Vesper appears to still be operating.","reviewer_def_hash":"bc11388ce4bc4deea1b064fea362663ae06e3f4f687f99604769044d6ffba770","score_delta":0,"scored_claims":5,"sequence_num":3,"subject_status":"operating","subject_status_contradicts_page":false,"submission_content_hash":null,"submission_id":null,"submission_kind":null,"submission_valence":null,"v":1}