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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.

Sequence
#1
Score
Cluster
mainnet-beta
Slot
423217314
Off-chain at
2026-05-30T19:11:07.490Z
Anchored at
Block time

Independent verification

1. Database (off-chain)
Ci8YmsteBWA5gWh3p9vT2wSm9kGX7uYCpzBwjByjuebB
2. Recomputed (your browser)
computing…
3. On-chain (Solana memo)
fetching…
Canonical bytes hashed (7924 chars)
{"actor":"system:backfill","investigation_id":"48467414-7d60-491a-a39b-2c6a16c13df9","kind":"publish","page_slug":"nishad-singh","published_at":"2026-05-30T19:11:07.422Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"Nishad Singh","sections":[{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://www.cnbc.com/2022/12/06/former-ftx-engineer-quietly-became-millionaire-democratic-donor.html","type":"other","url":""},{"credibility":3,"name":"https://prisonpedia.com/wiki/Nishad_Singh","type":"other","url":""},{"credibility":3,"name":"https://www.dlnews.com/articles/people-culture/ftx-executive-nishad-singh-details-sbf-embarrassing-spending/","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://www.theblock.co/post/254916/ftx-employees-discovered-alameda-backdoor-months-before-collapse","type":"other","url":""},{"credibility":3,"name":"https://www.techmeme.com/221215/p9","type":"other","url":""},{"credibility":3,"name":"https://www.coindesk.com/policy/2023/10/05/ftx-employees-knew-about-the-backdoor-to-alameda-months-before-collapse-wsj","type":"other","url":""},{"credibility":3,"name":"https://www.sec.gov/enforcement-litigation/litigation-releases/lr-25652","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://www.cnbc.com/2023/02/28/ftx-ex-engineering-head-nishad-singh-pleads-guilty-to-criminal-charges.html","type":"other","url":""},{"credibility":3,"name":"https://www.coindesk.com/policy/2023/02/28/former-ftx-engineering-director-nishad-singh-pleads-guilty-to-criminal-charges-reuters","type":"other","url":""},{"credibility":3,"name":"https://www.cnn.com/2023/02/28/investing/nishad-singh-ftx-guilty-plea/index.html","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://cointelegraph.com/news/sec-cftc-press-civil-charges-against-former-ftx-exec-singh-parallel-to-criminal-case","type":"other","url":""},{"credibility":3,"name":"https://www.bloomberg.com/news/articles/2026-04-01/cftc-resolves-fraud-case-against-ex-ftx-engineering-chief-singh","type":"other","url":""},{"credibility":3,"name":"https://www.sec.gov/newsroom/press-releases/2023-40","type":"other","url":""},{"credibility":3,"name":"https://blockchainmagazine.net/former-ftx-engineering-chief-nishad-singh-settles-cftc-charges-for-3-7-million/","type":"other","url":""},{"credibility":3,"name":"https://crypto.news/former-ftx-engineer-nishad-singh-agrees-to-3-7m-penalty-in-cftc-settlement/","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://www.cnbc.com/2022/12/06/former-ftx-engineer-quietly-became-millionaire-democratic-donor.html","type":"other","url":""},{"credibility":3,"name":"https://fortune.com/crypto/2023/10/16/ftx-straw-donor-sam-bankman-fried-nishad-singh/","type":"other","url":""},{"credibility":3,"name":"https://slate.com/technology/2023/10/sam-bankman-fried-political-donations-celebrity-endorsements-michael-kives.html","type":"other","url":""},{"credibility":3,"name":"https://www.theblock.co/post/192654/ftx-prolific-democrat-party-donor-cnbc","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://www.marketplace.org/story/2023/10/19/what-we-learned-from-nishad-singhs-testimony-in-the-sbf-trial/","type":"other","url":""},{"credibility":3,"name":"https://www.courthousenews.com/no-jail-time-for-former-ftx-exec-nishad-singh-an-early-cooperator-against-bankman-fried/","type":"other","url":""},{"credibility":3,"name":"https://cointelegraph.com/news/ftx-nishad-singh-sentencing-memo-prosecutors-cooperation","type":"other","url":""},{"credibility":3,"name":"https://www.cnbc.com/2024/10/30/ftxs-nishad-singh-gets-not-jail-time-3-years-supervised-release.html","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://www.cnbc.com/2024/10/30/ftxs-nishad-singh-gets-not-jail-time-3-years-supervised-release.html","type":"other","url":""},{"credibility":3,"name":"https://www.coindesk.com/policy/2024/10/30/ftxs-nishad-singh-gets-no-prison-time-for-role-in-crypto-exchange-collapse","type":"other","url":""},{"credibility":3,"name":"https://www.aljazeera.com/economy/2024/10/30/former-ftx-executive-nishad-singh-spared-prison-for-cooperation","type":"other","url":""},{"credibility":3,"name":"https://bettermarkets.org/newsroom/ftx-co-conspirator-nishad-singhs-cooperation-convicting-ftx-kingpin-sam-bankman-fried-was-important-but-not-a-get-out-of-jail-free-card/","type":"other","url":""},{"credibility":3,"name":"https://www.nbcnews.com/tech/tech-news/ftxs-nishad-singh-gets-no-jail-time-role-crypto-fraud-rcna178120","type":"other","url":""}]}],"sources_used":[],"summary":"Nishad Singh is a former software engineer who served as Director of Engineering at FTX, the cryptocurrency exchange that collapsed in November 2022 following the misappropriation of more than $8 billion in customer funds. Singh pleaded guilty in February 2023 to six criminal charges including wire fraud, commodities fraud, securities fraud, money laundering conspiracy, and campaign finance violations, and was sentenced in October 2024 to time served with no prison after providing extensive cooperation against FTX founder Sam Bankman-Fried. A supplemental CFTC civil settlement was reached in April 2026, requiring Singh to disgorge $3.7 million and subjecting him to a five-year trading ban.","timeline":[{"date":"2017-01-01","event":"Nishad Singh joins Alameda Research as an engineer after graduating from UC Berkeley","source":""},{"date":"2019-01-01","event":"FTX founded; Singh becomes Director of Engineering and moves to the Bahamas with Bankman-Fried's inner circle","source":""},{"date":"2022-05-01","event":"FTX employees in the United States discover Alameda Research's backdoor negative-balance exemption in the codebase and flag it to Singh; the issue is not corrected","source":""},{"date":"2022-09-01","event":"Singh confronts Bankman-Fried on the penthouse balcony about a massive shortfall in customer funds; Bankman-Fried dismisses the concern","source":""},{"date":"2022-11-12","event":"FTX files for bankruptcy; Singh returns to the United States shortly before the filing","source":""},{"date":"2022-11-01","event":"Singh has his first meeting with federal prosecutors in November 2022 after returning to the United States","source":""},{"date":"2022-12-15","event":"Bloomberg reports that a GitHub account bearing Singh's name authored code used to mask Alameda Research's ballooning liabilities on FTX","source":""},{"date":"2023-02-28","event":"Singh pleads guilty to six criminal counts in Manhattan federal court, including wire fraud, commodities fraud, securities fraud, money laundering conspiracy, and campaign finance conspiracy; SEC files parallel civil charges on the same day","source":""},{"date":"2023-10-03","event":"Singh testifies for the prosecution at Sam Bankman-Fried's criminal trial in Manhattan, describing the fund misappropriation and campaign finance scheme","source":""},{"date":"2023-11-02","event":"Sam Bankman-Fried is convicted on all seven counts following a jury trial; Singh's testimony is credited as a core part of the prosecution's case","source":""},{"date":"2024-10-30","event":"Judge Lewis Kaplan sentences Singh to time served and three years of supervised release; Singh is ordered to forfeit $11.2 billion and surrender Bahamian real estate, Anthropic shares, and crypto assets","source":""},{"date":"2026-04-01","event":"CFTC finalizes civil settlement with Singh; he agrees to disgorge $3.7 million, accept a five-year trading ban, and be prohibited from CFTC registration for eight years","source":""}]},"v":1}