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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 · Solana Summit Toronto
View on Solana ↗
Sequence
#2
Score
82 → 82 (0)
Cluster
mainnet-beta
Slot
448203140
Off-chain at
2026-09-18T21:20:46.259Z
Anchored at
—
Block time
—

Independent verification

1. Database (off-chain)
7fXTbDo8Mu5HVaHdTJmSWNn2zim1RQE7JsSFhubn2LwE
2. Recomputed (your browser)
computing…
3. On-chain (Solana memo)
fetching…
Canonical bytes hashed (1478 chars)
{"actor":"reviewer","artifact_identity":"a16b845334833ef4055a39cfb3b27f8f","decided_at":"2026-09-18T21:20:46.191Z","decision":"review","disputed_pct":0.1818,"findings_hash":"VScUAGNJ1nxmCR1YdWfq6RtVjgvF4KqjihgxEPbe39z","investigation_id":"289a7125-d648-4eec-9039-387a352a0e36","new_score":82,"page_content_hash":"862533f090fdb0255b6c9b53850b0e3a5cb4dad7da6d17d1f15d76f5bc8b5204","page_slug":"solana-summit-toronto","prev_score":82,"reason":"The page's core claims — event dates, venue, organizer identity, free/approval-based registration, Foundation-affiliated sponsor tier, and the absence of any fraud/scam reports — are all independently corroborated by the official event sites, Luma, solana.com/events, and a targeted ChainAbuse/web search. Two concrete defects were found: the grants figure is denominated in USDG, not USDC as stated, and the CoinDesk Consensus 2025 sponsor-page citation is dead (404, unarchived) though the underlying sponsorship claim is independently plausible. The specific \"1,300 attendees\" figure could not be verified against any source consulted and is flagged unverifiable rather than disputed. No accepted community submissions exist for this page to cross-check. Given this is a pre-event assessment, the clean fraud finding is necessarily provisional and would benefit from a post-event follow-up.","score_delta":0,"sequence_num":2,"submission_content_hash":null,"submission_id":null,"submission_kind":null,"submission_valence":null,"v":1}