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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
publish · Deribit
View on Solana ↗
Sequence
#1
Score
Cluster
mainnet-beta
Slot
421042220
Off-chain at
2026-05-20T18:44:21.375Z
Anchored at
Block time

Independent verification

1. Database (off-chain)
92KVJW96v2xeAKsBz7uKUSiuApQVzSDfBM1G8oHjYQTX
2. Recomputed (your browser)
computing…
3. On-chain (Solana memo)
fetching…
Canonical bytes hashed (6103 chars)
{"actor":"system:backfill","investigation_id":"98cc472f-144e-4022-b837-a8513cd0f062","kind":"publish","page_slug":"deribit","published_at":"2026-05-20T18:44:21.300Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"Deribit","sections":[{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://blog.mexc.com/wiki/who-is-deribit-founder/"},{"credibility":3,"name":"","type":"other","url":"https://www.coindesk.com/business/2022/07/01/blockchaincom-deribit-among-creditors-that-pushed-for-3ac-liquidation-report"},{"credibility":3,"name":"","type":"other","url":"https://www.coindesk.com/business/2025/05/08/coinbase-buys-deribit-for-usd2-9b"},{"credibility":3,"name":"","type":"other","url":"https://www.theblock.co/post/366957/coinbase-completes-2-9-billion-cash-and-stock-acquisition-of-deribit"}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://www.coindesk.com/business/2022/11/02/crypto-exchange-deribit-loses-28m-in-hot-wallet-hack"},{"credibility":3,"name":"","type":"other","url":"https://insights.deribit.com/exchange-updates/1-november-incident-report-and-next-steps/"},{"credibility":3,"name":"","type":"other","url":"https://decrypt.co/113334/crypto-exchange-deribit-hacked-28m-bitcoin-ethereum-usdc"},{"credibility":3,"name":"","type":"other","url":"https://www.bloomberg.com/news/articles/2022-11-02/crypto-derivative-exchange-deribit-lost-28-million-in-a-hot-wallet-hack"}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://www.coindesk.com/business/2024/04/02/crypto-exchange-deribits-dubai-based-entity-wins-conditional-vasp-license"},{"credibility":3,"name":"","type":"other","url":"https://insights.deribit.com/exchange-updates/deribit-first-derivatives-exchange-to-receive-vara-regulatory-approval/"},{"credibility":3,"name":"","type":"other","url":"https://insights.deribit.com/exchange-updates/deribit-to-launch-1-jan-2025-as-a-fully-licensed-spot-and-derivatives-exchange-in-dubai-uae/"},{"credibility":3,"name":"","type":"other","url":"https://support.deribit.com/hc/en-us/articles/25944499603357-Regulation-And-Governance"},{"credibility":3,"name":"","type":"other","url":"https://www.sec.gov/Archives/edgar/data/0001679788/000167978825000086/coin-20250508.htm"}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://support.deribit.com/hc/en-us/articles/25944547383453-Custody-Policy"},{"credibility":3,"name":"","type":"other","url":"https://insights.deribit.com/exchange-updates/1-november-incident-report-and-next-steps/"},{"credibility":3,"name":"","type":"other","url":"https://support.deribit.com/hc/en-us/articles/25944777576477-Insurance-Fund"}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://www.coindesk.com/business/2022/11/02/crypto-exchange-deribit-loses-28m-in-hot-wallet-hack"},{"credibility":3,"name":"","type":"other","url":"https://cointelegraph.com/news/source-claims-3ac-s-deribit-exposure-is-worth-much-less-than-reported"},{"credibility":3,"name":"","type":"other","url":"https://www.coindesk.com/business/2022/07/01/blockchaincom-deribit-among-creditors-that-pushed-for-3ac-liquidation-report"},{"credibility":3,"name":"","type":"other","url":"https://www.theblock.co/post/366957/coinbase-completes-2-9-billion-cash-and-stock-acquisition-of-deribit"},{"credibility":3,"name":"","type":"other","url":"https://www.sec.gov/Archives/edgar/data/0001679788/000167978825000207/q325shareholderletter.htm"}]}],"sources_used":[],"summary":"Deribit is a crypto options and futures exchange founded in 2016 in the Netherlands by John and Marius Jansen, historically operated through a Panama-registered entity and now licensed under Dubai's VARA framework as Deribit FZE. The exchange suffered a $28 million hot wallet compromise on November 1, 2022, covering the loss entirely from its own balance sheet. Coinbase completed the acquisition of Deribit for approximately $2.9 billion on August 14, 2025, making it a subsidiary of a publicly traded, NASDAQ-listed U.S. company.","timeline":[{"date":"2016-06-01","event":"Deribit officially launches, founded by John Jansen, Marius Jansen, and Sebastian Smyczinski, incorporated in the Netherlands.","source":""},{"date":"2020-02-01","event":"Three Arrows Capital acquires an indirect ~16% stake in Deribit via a Singapore SPV.","source":""},{"date":"2022-07-01","event":"Deribit is named among creditors pushing for Three Arrows Capital's liquidation; 3AC owes Deribit approximately $80 million.","source":""},{"date":"2022-11-01","event":"Deribit's hot wallet server is compromised just before midnight UTC; approximately $28 million in BTC, ETH, and USDC is stolen.","source":""},{"date":"2022-11-02","event":"Deribit announces the hack, confirms client assets unaffected, states loss will be covered by balance sheet. Normal on-chain withdrawals resume.","source":""},{"date":"2022-11-05","event":"On-chain analysts observe stolen funds begin moving to Tornado Cash.","source":""},{"date":"2024-04-02","event":"Deribit FZE receives a conditional VASP license from Dubai's VARA — the first derivatives exchange to receive a full market product derivatives license from VARA.","source":""},{"date":"2024-11-29","event":"Deribit announces January 1, 2025 migration of all activities to its Dubai-licensed entity, Deribit FZE.","source":""},{"date":"2025-01-01","event":"Deribit FZE goes live as the primary entity for qualified and institutional investors; retail clients remain under DRB Panama as a broker-member.","source":""},{"date":"2025-05-08","event":"Coinbase announces agreement to acquire Deribit for approximately $2.9 billion ($700 million cash plus 11 million Coinbase Class A shares).","source":""},{"date":"2025-08-14","event":"Coinbase completes acquisition of Deribit, making it a wholly-owned subsidiary of Coinbase Global, Inc.","source":""}]},"v":1}