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
- 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. - 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.
- 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
- 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}