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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 · xToken
View on Solana ↗
Sequence
#1
Score
Cluster
mainnet-beta
Slot
422206379
Off-chain at
2026-05-26T03:49:41.284Z
Anchored at
Block time

Independent verification

1. Database (off-chain)
GDWj4iVLKXqpLtLPyfdX3Km3VXcgg9F2TNsBNvmQ7Ga7
2. Recomputed (your browser)
computing…
3. On-chain (Solana memo)
fetching…
Canonical bytes hashed (6219 chars)
{"actor":"system:backfill","investigation_id":"e1f52b35-22bd-40ff-b8ca-12bded5dbd8d","kind":"publish","page_slug":"xtoken","published_at":"2026-05-26T03:49:41.094Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"xToken","sections":[{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://medium.com/xtoken/introducing-xtoken-2fd50d0f943b","type":"other","url":""},{"credibility":3,"name":"https://tracxn.com/d/companies/xtokenmarket/__dtK8Ocu4Lkbht1eagx29wYdwwxbeIzmi0c4gIV1rRX0","type":"other","url":""},{"credibility":3,"name":"https://www.defipulse.com/blog/founder-fireside-chat-with-michael-j-cohen-of-xtoken","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://www.coindesk.com/markets/2021/05/12/defi-protocol-xtoken-suffers-245m-exploit","type":"other","url":""},{"credibility":3,"name":"https://www.theblock.co/post/104667/defi-protocol-xtoken-exploit-attack","type":"other","url":""},{"credibility":3,"name":"https://rekt.news/xtoken-rekt","type":"other","url":""},{"credibility":3,"name":"https://medium.com/xtoken/initial-report-on-xbnta-xsnxa-exploit-d6e784387f8e","type":"other","url":""},{"credibility":3,"name":"https://web3isgoinggreat.com/?id=2021-05-12-0","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://www.halborn.com/blog/post/explained-the-xtoken-hack-august-2021","type":"other","url":""},{"credibility":3,"name":"https://rekt.news/xtoken-rekt-x2","type":"other","url":""},{"credibility":3,"name":"https://medium.com/xtoken/xsnx-post-mortem-666d35071f38","type":"other","url":""},{"credibility":3,"name":"https://cointelegraph.com/news/beleaguered-defi-project-xtoken-suffers-second-major-exploit-since-may","type":"other","url":""},{"credibility":3,"name":"https://coingeek.com/xtoken-defi-protocol-loses-7m-in-yet-another-exploit/","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://beincrypto.com/xtoken-proposes-compensation-after-25m-defi-hack/","type":"other","url":""},{"credibility":3,"name":"https://gov.xtoken.cafe/t/proposal-for-compensation-for-xtoken-hack/109","type":"other","url":""},{"credibility":3,"name":"https://coingeek.com/xtoken-defi-protocol-loses-7m-in-yet-another-exploit/","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://rekt.news/xtoken-rekt","type":"other","url":""},{"credibility":3,"name":"https://www.halborn.com/blog/post/explained-the-xtoken-hack-august-2021","type":"other","url":""},{"credibility":3,"name":"https://rekt.news/xtoken-rekt-x2","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://beincrypto.com/xtoken-proposes-compensation-after-25m-defi-hack/","type":"other","url":""},{"credibility":3,"name":"https://cointelegraph.com/news/beleaguered-defi-project-xtoken-suffers-second-major-exploit-since-may","type":"other","url":""},{"credibility":3,"name":"https://medium.com/xtoken/xtoken-2-0-a8e8db69eefd","type":"other","url":""},{"credibility":3,"name":"https://defillama.com/protocol/xtoken","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://rekt.news/xtoken-rekt","type":"other","url":""},{"credibility":3,"name":"https://rekt.news/xtoken-rekt-x2","type":"other","url":""}]}],"sources_used":[],"summary":"xToken (XTK) was a DeFi protocol offering wrapped staking tokens and liquidity management on Ethereum, founded by Michael J. Cohen in 2020. The protocol suffered two major flash loan exploits in 2021 — a $24.5 million attack in May and a $4.5 million attack in August — resulting in total losses exceeding $29 million and the permanent retirement of its flagship xSNX product. The XTK governance token subsequently lost approximately 99.84% of its value, and compensation paid to victims was significantly below the amounts stolen.","timeline":[{"date":"2020-09-10","event":"xToken completes its first funding round, raising funds toward a total of $3 million across two rounds. Protocol founded by Michael J. Cohen in Brooklyn, NY.","source":""},{"date":"2021-05-12","event":"xToken suffers its first major exploit. An attacker borrows 61,833 ETH via dYdX flash loan and exploits vulnerabilities in both xBNTa (invalid mint path) and xSNXa (oracle manipulation via Uniswap v2 / Kyber). Approximately $24.5 million is drained from Bancor and Balancer liquidity pools. Assets stolen include ~2,400 ETH, 781,000 BNT, 407,000 SNX, and 1.9 billion xBNTa tokens. xToken pauses minting across all contracts.","source":""},{"date":"2021-05-16","event":"xToken proposes a compensation plan offering 1% of XTK supply to hack victims, vested over one year. Community feedback leads to an upward revision to 2% (~20 million tokens, worth approximately $3.84 million at prevailing prices — roughly 15% of the stolen amount).","source":""},{"date":"2021-08-29","event":"xToken suffers its second major exploit. An attacker exploits an access control bug in the xSNXAdmin callFunction (using `require(sender==address(this))` instead of verifying the dYdX flash loan caller). The attacker borrows 25,000 ETH from dYdX and 1 million SNX from Aave, manipulates SNX price, and extracts approximately $4.5 million from xSNX holders.","source":""},{"date":"2021-08-30","event":"xToken announces permanent retirement of the xSNX product and pledges a second XTK-based compensation program for affected users. XTK is trading at approximately $0.12, down ~90% from its April 2021 peak of ~$1.36.","source":""},{"date":"2022-03-01","event":"xToken launches xToken Terminal, a rebranded capital markets and liquidity management platform for Web3 projects, representing an attempted pivot away from staking token products.","source":""},{"date":"2024-01-01","event":"XTK token trades at approximately $0.0000244 — a decline of approximately 99.84% from its all-time high. Market capitalization falls below $10,000. Protocol never recovers meaningful total value locked (TVL).","source":""}]},"v":1}