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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 · BitoPro
View on Solana ↗
Sequence
#1
Score
→
Cluster
mainnet-beta
Slot
420795121
Off-chain at
2026-05-19T15:18:31.193Z
Anchored at
—
Block time
—

Independent verification

1. Database (off-chain)
8ei7eG61SeETLyn5dfSC6XL6znvTjYEzeP8xTdzM18ds
2. Recomputed (your browser)
computing…
3. On-chain (Solana memo)
fetching…
Canonical bytes hashed (3433 chars)
{"actor":"system:backfill","investigation_id":"48bd7d95-a2a6-4b73-a470-8c98d947958f","kind":"publish","page_slug":"bitopro","published_at":"2026-05-19T15:18:31.093Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"BitoPro","sections":[{"content":"","heading":"","severity":"medium","sources":[]},{"content":"","heading":"","severity":"medium","sources":[]},{"content":"","heading":"","severity":"medium","sources":[]},{"content":"","heading":"","severity":"medium","sources":[]},{"content":"","heading":"","severity":"medium","sources":[]},{"content":"","heading":"","severity":"medium","sources":[]}],"sources_used":[],"summary":"BitoPro is a Taiwanese centralized cryptocurrency exchange operated by BitoGroup, serving over 800,000 users with TWD (New Taiwan Dollar) fiat on/off-ramps. On May 8, 2025, the exchange suffered an approximately $11.5 million hot wallet theft attributed to North Korea's Lazarus Group via a social-engineering and AWS-token-hijacking attack. The exchange did not publicly disclose the breach for approximately 25 days, only confirming the incident after on-chain investigator ZachXBT flagged suspicious outflows on June 2, 2025.","timeline":[{"date":"2018-01-01","event":"BitoPro exchange launched by BitoGroup (BitoEX team), providing TWD fiat crypto trading in Taiwan.","source":"","source_url":"https://tradingfinder.com/exchanges/bitopro/"},{"date":"2025-05-08","event":"Lazarus Group (alleged) exploits BitoPro hot wallets during a routine system upgrade, stealing approximately $11.5 million across Ethereum, Tron, Solana, and Polygon via malware, AWS session token hijacking, and C2-directed withdrawals.","source":"","source_url":"https://www.bleepingcomputer.com/news/security/bitopro-exchange-links-lazarus-hackers-to-11-million-crypto-heist/"},{"date":"2025-06-02","event":"ZachXBT publicly flags approximately $11.5 million in suspicious hot wallet outflows from BitoPro on Telegram, stating the exchange was 'likely exploited.' ZachXBT documents the laundering trail through Tornado Cash, ThorChain, and Wasabi Wallet.","source":"","source_url":"https://www.theblock.co/post/356522/zachxbt-flags-suspicious-11-5m-outflows-from-bitopro-exchanges-hot-wallets-says-it-was-likely-exploited"},{"date":"2025-06-02","event":"BitoPro confirms the security breach approximately three hours after ZachXBT's public post, stating an 'old hot wallet' was compromised during a system upgrade. The exchange states user funds are unaffected and have been replenished from internal reserves.","source":"","source_url":"https://fortune.com/crypto/2025/06/03/taiwanese-crypto-exchange-bitopro-confirms-hack/"},{"date":"2025-06-03","event":"Major outlets including Fortune, CoinDesk, and CryptoNews report on the confirmed BitoPro hack. CoinGecko data shows a 21% drop in exchange trading volume following public disclosure.","source":"","source_url":"https://www.coindesk.com/tech/2025/06/02/taiwanese-crypto-exchange-bitopro-likely-hacked-for-usd11m-in-may-zachxbt-says"},{"date":"2025-06-11","event":"BitoPro announces completion of external cybersecurity investigation, attributing the attack to Lazarus Group based on TTPs consistent with prior Lazarus operations including SWIFT-system exploits and previous exchange heists.","source":"","source_url":"https://www.bleepingcomputer.com/news/security/bitopro-exchange-links-lazarus-hackers-to-11-million-crypto-heist/"}]},"v":1}