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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
421038840
Off-chain at
2026-05-20T18:22:04.560Z
Anchored at
Block time

Independent verification

1. Database (off-chain)
HSkTP6mqhaGF2RihYPKU9ewmSuEboaHzgkvMWnjUPRWJ
2. Recomputed (your browser)
computing…
3. On-chain (Solana memo)
fetching…
Canonical bytes hashed (6356 chars)
{"actor":"system:backfill","investigation_id":"e12ac5bb-f642-49d6-8467-1c72ad1d83bb","kind":"publish","page_slug":"mixin-network","published_at":"2026-05-20T18:22:04.502Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"Mixin Network","sections":[{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://cryptopotato.com/mixin-a-multi-layer-decentralized-network-that-offers-cross-chain-solutions-lightning-fast-transactions/"},{"credibility":3,"name":"","type":"other","url":"https://www.aicoin.com/en/article/367445"},{"credibility":3,"name":"","type":"other","url":"https://tokeninsight.com/en/news/mixin-founder-feng-xiaodong-will-compensate-up-to-50-of-losses"}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://www.elliptic.co/blog/mixin-network-hacked-for-200-million"},{"credibility":3,"name":"","type":"other","url":"https://www.coindesk.com/tech/2023/09/25/mixin-network-losses-nearly-200m-in-hack"},{"credibility":3,"name":"","type":"other","url":"https://www.bleepingcomputer.com/news/security/mixin-network-suspends-operations-following-200-million-hack/"},{"credibility":3,"name":"","type":"other","url":"https://techcrunch.com/2023/09/25/hackers-steal-200-million-from-crypto-company-mixin/"},{"credibility":3,"name":"","type":"other","url":"https://www.halborn.com/blog/post/explained-the-mixin-network-hack-september-2023"},{"credibility":3,"name":"","type":"other","url":"https://www.securityweek.com/200-million-in-cryptocurrency-stolen-in-mixin-network-hack/"}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://www.merklescience.com/blog/hack-track-mixin-flow-of-funds-analysis"},{"credibility":3,"name":"","type":"other","url":"https://www.elliptic.co/blog/mixin-network-hacked-for-200-million"},{"credibility":3,"name":"","type":"other","url":"https://decrypt.co/358032/3-million-ethereum-mixin-network-hack-tornado-cash"},{"credibility":3,"name":"","type":"other","url":"https://financefeeds.com/mixin-network-hacker-moves-2005-eth-to-tornado-cash-after-2-years-of-silence/"},{"credibility":3,"name":"","type":"other","url":"https://finance.yahoo.com/news/3-85-million-ethereum-mixin-175053959.html"}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://www.theblock.co/post/252716/mixin-network-founder-says-just-half-users-assets-are-safe-after-200-million-hack"},{"credibility":3,"name":"","type":"other","url":"https://bitcoinist.com/mixin-network-offers-hacker-20-million-bug-bounty/"},{"credibility":3,"name":"","type":"other","url":"https://www.bitget.com/news/detail/12560603893640"},{"credibility":3,"name":"","type":"other","url":"https://support.mixin.one/en/article/what-is-mdt-token-77n05i/"},{"credibility":3,"name":"","type":"other","url":"https://www.dlnews.com/articles/defi/questions-swirl-around-hack-at-hong-kong-network-mixin/"}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://mixin.one/features/compliance"},{"credibility":3,"name":"","type":"other","url":"https://www.bankinfosecurity.com/cryptohack-roundup-200m-mixin-network-hack-a-23185"},{"credibility":3,"name":"","type":"other","url":"https://www.coindesk.com/policy/2025/12/25/hong-kong-regulators-target-2026-legislation-for-virtual-asset-dealer-and-custodian-rules"}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://www.halborn.com/blog/post/explained-the-mixin-network-hack-september-2023"},{"credibility":3,"name":"","type":"other","url":"https://www.elliptic.co/blog/mixin-network-hacked-for-200-million"},{"credibility":3,"name":"","type":"other","url":"https://financefeeds.com/mixin-network-hacker-moves-2005-eth-to-tornado-cash-after-2-years-of-silence/"},{"credibility":3,"name":"","type":"other","url":"https://www.dlnews.com/articles/defi/questions-swirl-around-hack-at-hong-kong-network-mixin/"}]}],"sources_used":[],"summary":"Mixin Network is a Hong Kong-based layer-2 cross-chain payment protocol that suffered the largest single crypto hack of 2023 when attackers compromised its cloud service provider's database and drained approximately $200 million in ETH, BTC, and USDT. The network remains operational but has only partially compensated users, the majority of stolen funds remain unrecovered, and a dormant attacker wallet moved funds to Tornado Cash in February 2026.","timeline":[{"date":"2017-11-01","event":"Feng Xiaodong establishes the Mixin blockchain team in Hong Kong with fewer than 20 people.","source":""},{"date":"2023-09-23","event":"Attacker compromises the database of Mixin Network's cloud service provider; approximately $200 million in ETH, BTC, and USDT drained via 10,000+ unauthorized withdrawal transactions.","source":""},{"date":"2023-09-25","event":"Mixin Network publicly discloses the breach, suspends all deposits and withdrawals, and contacts SlowMist and Google for investigation support.","source":""},{"date":"2023-09-25","event":"Founder Feng Xiaodong holds live briefing; announces 50% immediate stablecoin repayment and 50% via future bond tokens (MDT).","source":""},{"date":"2023-09-26","event":"Mixin offers attacker a $20 million bug bounty for return of stolen funds. Offer is not accepted.","source":""},{"date":"2023-09-26","event":"Elliptic, Merkle Science, and Lookonchain publish on-chain analysis confirming asset breakdown: 59,807 ETH, 891 BTC, 23.57M USDT. Attacker immediately swaps USDT to DAI on Uniswap.","source":""},{"date":"2024-02-01","event":"Mixin Kernel officially launches Mixin Debt Token (MDT) in three tranches (MDTu, MDTe, MDTb) as the mechanism for the 50% deferred repayment.","source":""},{"date":"2025-10-01","event":"Mixin provides repayment update: MDTu (~$23 million) targeted for full repayment by September 2026; no timeline disclosed for MDTe or MDTb.","source":""},{"date":"2026-02-12","event":"Dormant attacker wallet moves 2,005 ETH ($3.85 million) through three newly created wallets to Tornado Cash — first movement of stolen funds in over two years. Remaining balance: approximately 57,849 ETH and 891 BTC.","source":""}]},"v":1}