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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_revise · Nexo
View on Solana ↗
Sequence
#2
Score
42 → 34 (-8)
Cluster
mainnet-beta
Slot
419605626
Off-chain at
2026-05-14T03:28:36.659Z
Anchored at
—
Block time
—

Independent verification

1. Database (off-chain)
H8KDjXVf1HcqA8g3vagPJTviE93yoPepSmHfYaLDecgM
2. Recomputed (your browser)
computing…
3. On-chain (Solana memo)
fetching…
Canonical bytes hashed (872 chars)
{"actor":"judge","decided_at":"2026-05-14T03:28:36.532Z","decision":"review_revise","investigation_id":"0810ecbe-2195-4c8f-a1db-b348b0f9224b","new_score":34,"page_slug":"nexo","prev_score":42,"reason":"claim_findings[7] mischaracterizes Nexo's market ranking per Galaxy Research data; the page claims 'second-largest' lender but Galaxy Q3 2025 data places Nexo third behind Tether and Galaxy itself. claim_findings[0] and claim_findings[8] note omission of two co-founders and a misleading alternate spelling that lacks source support. All core regulatory facts (SEC settlement, Bulgarian investigation closure, US relaunch via Bakkt) are confirmed by tier-1 sources. Coverage gaps are minor; no critical claims are contradicted.","score_delta":-8,"sequence_num":2,"submission_content_hash":null,"submission_id":null,"submission_kind":null,"submission_valence":null,"v":1}