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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 · Tornado Cash
View on Solana ↗
Sequence
#1
Score
25 → 25 (0)
Cluster
mainnet-beta
Slot
419602851
Off-chain at
2026-05-14T03:10:22.560Z
Anchored at
—
Block time
—

Independent verification

1. Database (off-chain)
AXS4fTYumXKzZkMBZCfWYBEzEQuR5GycawuXSBe8Vu4V
2. Recomputed (your browser)
computing…
3. On-chain (Solana memo)
fetching…
Canonical bytes hashed (1159 chars)
{"actor":"reviewer","decided_at":"2026-05-14T03:10:22.448Z","decision":"review","investigation_id":"4b6ee26d-dd35-4c7d-b41a-ccf5a997640a","new_score":25,"page_slug":"tornado-cash","prev_score":25,"reason":"The Tornado Cash investigation page is substantially accurate on the major legal events — the OFAC sanction, Fifth Circuit reversal, March 2025 delisting, Pertsev Dutch conviction, Storm trial verdict, and retrial filing. The most significant factual error appears twice (in both the Founders section and the November 2022 timeline entry): the page incorrectly states that Roman Semenov was individually added to the OFAC SDN List in November 2022, when he was in fact individually sanctioned on August 23, 2023. Additionally, the page's statement that Semenov 'was not removed from the SDN List' during the March 2025 delisting is incomplete — his Cyber-Related designation was removed but DPRK designation maintained. The trial start date of 'late July 2025' is also inaccurate; the trial began July 14, 2025.","score_delta":0,"sequence_num":1,"submission_content_hash":null,"submission_id":null,"submission_kind":null,"submission_valence":null,"v":1}