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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 · BlackSuit
View on Solana ↗
Sequence
#1
Score
Cluster
mainnet-beta
Slot
420042403
Off-chain at
2026-05-16T03:55:55.106Z
Anchored at
Block time

Independent verification

1. Database (off-chain)
DQPuDHq2qnVwvjifaAAkxSnitQp4fR4hcEhjZXLuJqoL
2. Recomputed (your browser)
computing…
3. On-chain (Solana memo)
fetching…
Canonical bytes hashed (4404 chars)
{"actor":"system:backfill","investigation_id":"4577d3b2-53dc-4eb0-8992-d7bfb7be9c1d","kind":"publish","page_slug":"blacksuit","published_at":"2026-05-16T03:55:55.045Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"BlackSuit","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":[]},{"content":"","heading":"","severity":"medium","sources":[]},{"content":"","heading":"","severity":"medium","sources":[]}],"sources_used":[],"summary":"BlackSuit is a ransomware-as-a-service (RaaS) operation that emerged in May 2023 as a rebranding of the Royal ransomware gang, itself a successor to the Conti cybercrime syndicate believed to be operated by Russian-speaking threat actors. The group employed double-extortion tactics across critical infrastructure sectors including healthcare, automotive, education, and government, compromising over 450 U.S. victims and demanding more than $500 million in ransom, primarily in Bitcoin, before international law enforcement dismantled its infrastructure in July 2025 under Operation Checkmate.","timeline":[{"date":"2022-05-01","event":"Conti ransomware syndicate publicly dissolves following a major internal data leak; members splinter into successor groups including Quantum and Zeon.","source":"","source_url":"https://blog.barracuda.com/2024/10/29/blacksuit-ransomware--8-years--6-names--1-cybercrime-syndicate"},{"date":"2022-09-01","event":"Royal ransomware operation begins activity, drawing membership from former Conti operators; targets U.S. critical infrastructure sectors.","source":"","source_url":"https://www.cisa.gov/news-events/cybersecurity-advisories/aa23-061a"},{"date":"2023-05-01","event":"BlackSuit ransomware first observed by security researchers; payload shares significant code overlap with Royal ransomware.","source":"","source_url":"https://www.picussecurity.com/resource/blog/blacksuit-ransomware-group"},{"date":"2023-11-15","event":"CISA and FBI issue joint advisory warning that Royal ransomware actors are testing a potential rebrand to BlackSuit.","source":"","source_url":"https://techcrunch.com/2023/11/15/cisa-fbi-royal-ransomware-blacksuit-sanctions/"},{"date":"2024-04-17","event":"BlackSuit attacks Octapharma Plasma, forcing temporary closure of more than 160 blood plasma donation centers across the United States.","source":"","source_url":"https://therecord.media/plasma-donation-company-cyberattack-blacksuit"},{"date":"2024-06-18","event":"BlackSuit launches ransomware attack against CDK Global, disrupting dealer management systems at approximately 15,000 North American automotive dealerships.","source":"","source_url":"https://www.esentire.com/security-advisories/blacksuit-ransomware-impacts-cdk-global"},{"date":"2024-06-21","event":"On-chain analysis identifies approximately 387 Bitcoin (~$25 million) transferred to a wallet assessed to be controlled by BlackSuit, consistent with a CDK Global ransom payment.","source":"","source_url":"https://cyberscoop.com/cdk-ransom-blacksuit-25-million/"},{"date":"2024-08-07","event":"CISA and FBI release updated joint advisory formally confirming Royal ransomware actors have rebranded as BlackSuit; aggregate extortion demands reported to exceed $500 million.","source":"","source_url":"https://www.cisa.gov/news-events/alerts/2024/08/07/royal-ransomware-actors-rebrand-blacksuit-fbi-and-cisa-release-update-advisory"},{"date":"2025-07-24","event":"Operation Checkmate: U.S. DOJ, ICE HSI, FBI, Europol, and international partners seize four BlackSuit servers, nine domains, and $1,091,453 in cryptocurrency; BlackSuit's darknet leak site displays seizure banner.","source":"","source_url":"https://www.ice.gov/news/releases/ice-washington-dc-leads-international-takedown-blacksuit-ransomware-infrastructure"},{"date":"2025-08-12","event":"DOJ publicly announces Operation Checkmate results; former BlackSuit members assessed to have migrated to INC ransomware and Chaos ransomware successor groups.","source":"","source_url":"https://www.axios.com/2025/08/12/doj-blacksuit-ransomware-cryptocurrency-seizure"}]},"v":1}