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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 · Tudou Guarantee Telegram Marketplace
View on Solana ↗
Sequence
#2
Score
0 → 0 (0)
Cluster
mainnet-beta
Slot
425404990
Off-chain at
2026-06-09T21:00:00.134Z
Anchored at
—
Block time
—

Independent verification

1. Database (off-chain)
2KmiYnhmLEVEeEKNk8Urrwkhqj7iqbVKFrp3GBumw3vq
2. Recomputed (your browser)
computing…
3. On-chain (Solana memo)
fetching…
Canonical bytes hashed (1133 chars)
{"actor":"reviewer","decided_at":"2026-06-09T21:00:00.034Z","decision":"review","investigation_id":"13b5cfe3-6435-4d83-8822-822d7b3ce08c","new_score":0,"page_slug":"tudou-guarantee-telegram-marketplace","prev_score":0,"reason":"The page is substantially accurate and well-sourced, with the overwhelming majority of claims confirmed by credible independent sources including government primary sources (FinCEN, OFAC, Singapore Police, Treasury), Tier-1 news outlets (CNN, OCCRP, Washington Post), and multiple blockchain analytics firms (Elliptic, TRM Labs, Chainalysis). The one disputed claim is a meaningful factual error: the timeline states the FinCEN final rule 'took effect' on October 16, 2025, when the actual effective date per the Federal Register was November 17, 2025. Three claims are unverifiable due to reliance on secondary aggregators (Cryptonomist, MEXC News) citing a Bitrace primary report that was not directly accessible. No link rot was detected among checked sources.","score_delta":0,"sequence_num":2,"submission_content_hash":null,"submission_id":null,"submission_kind":null,"submission_valence":null,"v":1}