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 · Akropolis
- Sequence
- #1
- Score
- →
- Cluster
- mainnet-beta
- Slot
- 422779256
- Off-chain at
- 2026-05-28T18:58:00.956Z
- Anchored at
- —
- Block time
- —
Independent verification
- 1. Database (off-chain)
- 3zsZk77qeK9zfke22nPPLYZzZtT3ZEouQgY91Cfv8mfh
- 2. Recomputed (your browser)
- computing…
- 3. On-chain (Solana memo)
- fetching…
Canonical bytes hashed (6582 chars)
{"actor":"system:backfill","investigation_id":"e9070940-c439-496f-a3e1-dd55a919edd5","kind":"publish","page_slug":"akropolis","published_at":"2026-05-28T18:58:00.876Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"Akropolis","sections":[{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://iq.wiki/wiki/akropolis","type":"other","url":""},{"credibility":3,"name":"https://kriptomat.io/cryptocurrency-prices/akropolis-akro-price/what-is/","type":"other","url":""},{"credibility":3,"name":"https://icodrops.com/akropolis/","type":"other","url":""},{"credibility":3,"name":"https://www.kucoin.com/announcement/en-kucoin-will-support-the-akropolis-akro-rebranding-to-kaon-akro-20241202","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://peckshield.medium.com/akropolis-incident-root-cause-analysis-c11ee59e05d4","type":"other","url":""},{"credibility":3,"name":"https://www.coindesk.com/tech/2020/11/12/defi-project-akropolis-drained-of-2m-in-dai","type":"other","url":""},{"credibility":3,"name":"https://decrypt.co/48081/defi-platform-akropolis-admits-to-being-hacked-for-2-million","type":"other","url":""},{"credibility":3,"name":"https://www.theblock.co/linked/84490/defi-project-akropolis-exploited-for-over-2-million","type":"other","url":""},{"credibility":3,"name":"https://cointelegraph.com/news/akropolis-defi-protocol-paused-as-hackers-get-away-with-2m-in-dai","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://peckshield.medium.com/akropolis-incident-root-cause-analysis-c11ee59e05d4","type":"other","url":""},{"credibility":3,"name":"https://etherscan.io/token/0x8ab7404063ec4dbcfd4598215992dc3f8ec853d7","type":"other","url":""},{"credibility":3,"name":"https://quadrigainitiative.com/casestudy/akropolisattacked.php","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://medium.com/akropolis/akro-token-security-audit-by-certik-fd9d908cd98d","type":"other","url":""},{"credibility":3,"name":"https://www.certik.com/projects/akropolis","type":"other","url":""},{"credibility":3,"name":"https://medium.com/certik/akro-token-the-smart-contract-audit-provided-by-certik-f727921735b6","type":"other","url":""},{"credibility":3,"name":"https://decrypt.co/48081/defi-platform-akropolis-admits-to-being-hacked-for-2-million","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://wiki.akropolis.io/team/","type":"other","url":""},{"credibility":3,"name":"https://kriptomat.io/cryptocurrency-prices/akropolis-akro-price/what-is/","type":"other","url":""},{"credibility":3,"name":"https://www.crunchbase.com/organization/akropolis","type":"other","url":""},{"credibility":3,"name":"https://thedefiant.io/news/defi/yearn-partners-with-akropolis-in-move-for-institutional-defi","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://medium.com/akropolis/akropolis-january-update-adel-akro-swap-hack-compensation-more-4bb78a728c1d","type":"other","url":""},{"credibility":3,"name":"https://cryptobriefing.com/defi-project-akropolis-lost-2-million-heres-what-theyre-doing-about-it/","type":"other","url":""},{"credibility":3,"name":"https://www.livebitcoinnews.com/akropolis-proposes-unique-deal-to-hacker-following-crypto-theft/","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://www.vidma.io/blog/akropolis-hack-2-million-dai-heist-exposes-defi-vulnerabilities","type":"other","url":""},{"credibility":3,"name":"https://coinbureau.com/review/akropolis-akro","type":"other","url":""},{"credibility":3,"name":"https://coinspot.zendesk.com/hc/en-us/articles/11925309531919-CoinSpot-will-support-the-Akropolis-AKRO-Rebranding-Plan-to-Kaon-AKRO","type":"other","url":""},{"credibility":3,"name":"https://www.coinlore.com/coin/akropolis/historical-data","type":"other","url":""},{"credibility":3,"name":"https://insights.glassnode.com/defi-attacks-flash-loans-centralized-price-oracles/","type":"other","url":""}]}],"sources_used":[],"summary":"Akropolis is an Ethereum-based DeFi protocol founded in 2017 by Ana Andrianova and Kate Kurbanova, offering yield aggregation and undercollateralized lending through its Delphi and Sparta products. On November 12, 2020, the protocol suffered a $2.03 million DAI exploit via a reentrancy and flash loan attack — a vulnerability that was missed across multiple third-party smart contract audits. The project subsequently rebranded to Kaon in early 2025, having never recovered the stolen funds or fully compensated affected users.","timeline":[{"date":"2017-01-01","event":"Akropolis founded by Ana Andrianova and Kate Kurbanova in Gibraltar, initially focused on blockchain-based pension and savings infrastructure.","source":""},{"date":"2019-07-16","event":"AKRO token ICO completed, raising $2.4 million USD at $0.00813 per token.","source":""},{"date":"2020-11-12","event":"Akropolis Delphi savings pools exploited via reentrancy attack combined with a dYdX flash loan. 2,030,841 DAI ($2.03 million) stolen across 17 transactions. All stablecoin pools halted.","source":""},{"date":"2020-11-13","event":"CEO Ana Andrianova acknowledges the exploit publicly. PeckShield publishes root cause analysis. Team proposes $200,000 bug bounty if attacker returns funds within 48 hours.","source":""},{"date":"2020-12-01","event":"Akropolis and Yearn Finance announce strategic collaboration, integrating Yearn vault technology and establishing Akropolis as Yearn's institutional outreach partner.","source":""},{"date":"2021-01-01","event":"Akropolis publishes compensation plan: 50% of hack losses to be paid in vAKRO (24-month linear vesting at $0.012/AKRO); ADEL-to-AKRO swap announced at 1:15 ratio.","source":""},{"date":"2021-02-01","event":"Snapshot date for ADEL-to-AKRO swap eligibility.","source":""},{"date":"2021-04-01","event":"AKRO token reaches all-time high of approximately $0.08.","source":""},{"date":"2024-12-02","event":"Akropolis announces full rebranding to Kaon (KAON). Major exchanges including KuCoin, Gate.io, and CoinSpot announce support for the 1:1 token transition.","source":""},{"date":"2025-02-11","event":"Exchange trading of Akropolis (AKRO) halted for rebrand completion. Token transitions to Kaon (KAON) on supported exchanges.","source":""}]},"v":1}