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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 · ValueDefi
View on Solana ↗
Sequence
#1
Score
Cluster
mainnet-beta
Slot
422113821
Off-chain at
2026-05-25T17:34:22.644Z
Anchored at
Block time

Independent verification

1. Database (off-chain)
E7Kio8ApW5Smq6QHPsQ2wVfySALzAGDVRmhbHuawv6wZ
2. Recomputed (your browser)
computing…
3. On-chain (Solana memo)
fetching…
Canonical bytes hashed (6620 chars)
{"actor":"system:backfill","investigation_id":"d3f4ed3e-58a3-4164-b8c3-f478058afd5c","kind":"publish","page_slug":"valuedefi","published_at":"2026-05-25T17:34:22.596Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"ValueDefi","sections":[{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://www.coindesk.com/markets/2020/11/14/value-defi-suffers-6m-flash-loan-attack/","type":"other","url":""},{"credibility":3,"name":"https://www.coingecko.com/en/coins/value-defi","type":"other","url":""},{"credibility":3,"name":"https://coinmarketcap.com/currencies/value-defi/","type":"other","url":""},{"credibility":3,"name":"https://www.quadrigainitiative.com/hackfraudscam/valuedefionsaleagain.php","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://www.coindesk.com/markets/2020/11/14/value-defi-suffers-6m-flash-loan-attack/","type":"other","url":""},{"credibility":3,"name":"https://peckshield.medium.com/value-defi-incident-root-cause-analysis-fbab71faf373","type":"other","url":""},{"credibility":3,"name":"https://coingeek.com/7-4-million-stolen-in-value-defi-exploit/","type":"other","url":""},{"credibility":3,"name":"https://news.bitcoin.com/defi-protocol-bragged-having-flash-loan-attack-prevention-hacked-6-million/","type":"other","url":""},{"credibility":3,"name":"https://decrypt.co/48892/value-defi-hacked-chainlink","type":"other","url":""},{"credibility":3,"name":"https://cryptobriefing.com/value-defi-drained-millions-flash-loan-attack/","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://web3isgoinggreat.com/?id=value-defi-hacked-for-second-time-in-six-months","type":"other","url":""},{"credibility":3,"name":"https://www.quadrigainitiative.com/hackfraudscam/valuedefionsaleagain.php","type":"other","url":""},{"credibility":3,"name":"https://inspexco.medium.com/value-defis-invalid-share-calculation-exploit-in-depth-analysis-1c8f97c1416e","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://coingape.com/bsc-based-valuedefi-exploited-for-11m-by-scammers/","type":"other","url":""},{"credibility":3,"name":"https://slowmist.medium.com/slowmist-value-defi-vswap-module-hack-analysis-64e8909ef6a2","type":"other","url":""},{"credibility":3,"name":"https://web3isgoinggreat.com/?id=value-defi-hacked-for-second-time-in-six-months","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://cryptocoindaddy.com/value-defi-co-founder-is-paid-actress-on-fiverr/","type":"other","url":""},{"credibility":3,"name":"https://web3isgoinggreat.com/?id=value-defi-hacked-for-second-time-in-six-months","type":"other","url":""},{"credibility":3,"name":"https://wintoken.fun/potential-scam-value-defi-allegedly-lied-about-their-co-founder/","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://peckshield.medium.com/value-defi-incident-root-cause-analysis-fbab71faf373","type":"other","url":""},{"credibility":3,"name":"https://slowmist.medium.com/slowmist-value-defi-vswap-module-hack-analysis-64e8909ef6a2","type":"other","url":""},{"credibility":3,"name":"https://inspexco.medium.com/value-defis-invalid-share-calculation-exploit-in-depth-analysis-1c8f97c1416e","type":"other","url":""},{"credibility":3,"name":"https://decrypt.co/48892/value-defi-hacked-chainlink","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://www.coingecko.com/en/coins/value-defi","type":"other","url":""},{"credibility":3,"name":"https://coinmarketcap.com/currencies/value-defi/","type":"other","url":""},{"credibility":3,"name":"https://coinstats.app/coins/value-liquidity/","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://web3isgoinggreat.com/?id=value-defi-hacked-for-second-time-in-six-months","type":"other","url":""}]}],"sources_used":[],"summary":"Value DeFi (formerly YFValue/YFV) was a DeFi yield aggregation and AMM protocol that suffered three documented security exploits between August 2020 and May 2021, resulting in combined losses of approximately $24 million. Beyond the technical failures, the project was found to have used a paid actress from Fiverr to impersonate a co-founder named 'Anna Tanaka,' raising severe concerns about team identity, transparency, and intent. The VALUE token is effectively defunct, trading at a fraction of a cent with a near-zero market cap.","timeline":[{"date":"2020-08-01","event":"Value DeFi (then YFValue/YFV) launches. An initial security vulnerability is reported during August 2020, constituting the project's first security incident.","source":""},{"date":"2020-11-13","event":"Value DeFi posts a tweet boasting of 'highest security' and claims to offer flash loan attack prevention.","source":""},{"date":"2020-11-14","event":"Flash loan exploit drains approximately $7.4 million from the MultiStables Vault the day after its launch. Attacker returns $2 million and leaves on-chain message: 'do you really know flashloan?' VALUE token drops 27.9%.","source":""},{"date":"2020-11-15","event":"PeckShield publishes root cause analysis. Value DeFi announces plans to integrate Chainlink price oracles to prevent future AMM oracle manipulation.","source":""},{"date":"2021-05-05","event":"Second major exploit: attacker re-initializes vStake pool on BSC due to missing `initialized = true;` line in smart contract code, draining approximately $10 million. Funds laundered via renBTC to Bitcoin.","source":""},{"date":"2021-05-08","event":"Third exploit: vSwap AMM on BSC is drained of approximately $11 million through exploitation of flawed Bancor formula implementation. Nine of 16 pools are affected.","source":""},{"date":"2021-05-08","event":"Community member Crypto Bethany publicly exposes that Value DeFi's co-founder 'Anna Tanaka' is a paid Fiverr actress named Shan. Value DeFi developer attempts to explain the use of a hired actress as representation for a developer alias.","source":""},{"date":"2021-05-09","event":"Value DeFi proposes minting 4,540 vBSWAP tokens to partially compensate vStake victims. Community response is largely negative.","source":""},{"date":"2021-06-01","event":"Protocol activity declines sharply. Development effectively ceases. VALUE token begins sustained collapse toward near-zero valuations.","source":""}]},"v":1}