Audit log

Every state-changing event for BurgerSwap: moderation decisions on community submissions, plus corrections and updates from the news pipeline. URL-based decisions carry three independent witnesses — the original source, an Internet Archive snapshot taken at submission time, and a Solana memo signed by our publicly-disclosed publisher key.

1. #1publishby system:backfill

   2026-05-28 18:57:55Z
   Score: ? → ? (no score change)
   anchoranchored

   chain

   ●mainnet-betaslot 422,779,231

   sig

   2jAajSVyb68d…yUS4N8hYcopyexplorer ↗

   hash

   Eegks9dhD4Km…MjnQqc1Ecopysha256 → base58

   verifying row…full verify ↗

   canonical bytes (6759 B) ▸

   {"actor":"system:backfill","investigation_id":"eba94768-6699-40f8-921e-af5980db77fa","kind":"publish","page_slug":"burgerswap","published_at":"2026-05-28T18:57:55.136Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"BurgerSwap","sections":[{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://cryptopotato.com/who-is-behind-burgerswap-already-400-million-bnb-staked-in-1-day-via-binance-smart-chain/","type":"other","url":""},{"credibility":3,"name":"https://cointelegraph.com/news/burgerswap-frying-high-binance-offers-up-the-latest-dish-on-defi-menu","type":"other","url":""},{"credibility":3,"name":"https://academy.binance.com/en/articles/what-is-burgercities-burger","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://halborn.com/explained-the-burgerswap-hack-may-2021/","type":"other","url":""},{"credibility":3,"name":"https://www.coindesk.com/markets/2021/05/28/burgerswap-hit-by-flash-loan-attack-netting-over-7m","type":"other","url":""},{"credibility":3,"name":"https://cryptopotato.com/another-bsc-project-exploit-7-2m-drained-from-burgerswap-in-a-flash-loan-attack/","type":"other","url":""},{"credibility":3,"name":"https://slowmist.medium.com/an-analysis-of-the-attack-on-burgerswap-e48968040bad","type":"other","url":""},{"credibility":3,"name":"https://cryptoslate.com/binance-smart-chain-defi-project-burgerswap-hacked-for-7-million/","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://cryptobriefing.com/7-million-lost-flash-loan-attack-bsc-burgerswap/","type":"other","url":""},{"credibility":3,"name":"https://slowmist.medium.com/an-analysis-of-the-attack-on-burgerswap-e48968040bad","type":"other","url":""},{"credibility":3,"name":"https://blockcast.cc/news/peckshield-brief-analysis-of-burgerswap-lightning-loan-attack-the-logic-behind-the-defi-protocol-is-more-important-than-the-code/","type":"other","url":""},{"credibility":3,"name":"https://halborn.com/explained-the-burgerswap-hack-may-2021/","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://slowmist.medium.com/an-analysis-of-the-attack-on-burgerswap-e48968040bad","type":"other","url":""},{"credibility":3,"name":"https://bscscan.com/address/0x3f820d0bd7ce1cc0a993325cd46cae870a8d8bdc","type":"other","url":""},{"credibility":3,"name":"https://cryptopotato.com/another-bsc-project-exploit-7-2m-drained-from-burgerswap-in-a-flash-loan-attack/","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://cryptopotato.com/who-is-behind-burgerswap-already-400-million-bnb-staked-in-1-day-via-binance-smart-chain/","type":"other","url":""},{"credibility":3,"name":"https://cryptobriefing.com/7-million-lost-flash-loan-attack-bsc-burgerswap/","type":"other","url":""},{"credibility":3,"name":"https://research.binance.com/en/projects/burger-swap","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://medium.com/burgerswapblog/go-forward-plan-cburger-d522219affae","type":"other","url":""},{"credibility":3,"name":"https://u.today/binance-smart-chains-burgerswap-suffers-72-million-exploit","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://medium.com/burgerswapblog/go-forward-plan-cburger-d522219affae","type":"other","url":""},{"credibility":3,"name":"https://academy.binance.com/en/articles/what-is-burgercities-burger","type":"other","url":""},{"credibility":3,"name":"https://coinmarketcap.com/currencies/burger-cities/","type":"other","url":""},{"credibility":3,"name":"https://www.fxcm.com/markets/insights/everything-you-need-to-know-about-burgercities/","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://cryptobriefing.com/7-million-lost-flash-loan-attack-bsc-burgerswap/","type":"other","url":""},{"credibility":3,"name":"https://halborn.com/explained-the-burgerswap-hack-may-2021/","type":"other","url":""},{"credibility":3,"name":"https://slowmist.medium.com/an-analysis-of-the-attack-on-burgerswap-e48968040bad","type":"other","url":""},{"credibility":3,"name":"https://www.coindesk.com/markets/2021/05/28/burgerswap-hit-by-flash-loan-attack-netting-over-7m","type":"other","url":""}]}],"sources_used":[],"summary":"BurgerSwap is a decentralized exchange (DEX) and automated market maker (AMM) protocol launched in September 2020 on Binance Smart Chain (BSC), built around the native BURGER governance token. On May 28, 2021, the protocol suffered a flash loan and reentrancy exploit that drained approximately $7.2 million in user funds across 14 transactions. Uniswap founder Hayden Adams publicly noted that a critical line of code enforcing the constant-product formula had been deliberately removed from BurgerSwap's fork of Uniswap v2, raising allegations of an intentional vulnerability or insider involvement by the anonymous development team.","timeline":[{"date":"2020-09-01","event":"BurgerSwap launches on Binance Smart Chain with the BURGER governance token.","source":""},{"date":"2020-09-01","event":"Beosin audits the first version of BurgerSwap smart contracts. Team relies primarily on internal audits and offers 1,000 BNB bounty for external review.","source":""},{"date":"2021-05-28","event":"Flash loan and reentrancy exploit drains approximately $7.2 million from BurgerSwap across 14 transactions on BSC. BURGER token price drops ~27%.","source":""},{"date":"2021-05-28","event":"Uniswap founder Hayden Adams publicly states BurgerSwap removed the only code line enforcing x*y=k from its Uniswap v2 fork, implying the vulnerability may have been intentional.","source":""},{"date":"2021-05-28","event":"BurgerSwap suspends protocol services and issues statement promising to cover user losses.","source":""},{"date":"2021-05-29","event":"SlowMist and PeckShield publish technical post-mortems confirming reentrancy vulnerability and missing constant-product formula enforcement.","source":""},{"date":"2021-06-01","event":"BurgerSwap publishes Go Forward Plan detailing cBURGER compensation token airdrop over 90-day linear distribution for affected liquidity providers.","source":""},{"date":"2022-01-01","event":"BurgerCities metaverse platform launches in alpha, marking effective rebranding from BurgerSwap.","source":""},{"date":"2022-08-01","event":"Maximum BURGER token supply tripled from 21 million to 63 million via governance decision, described as controversial by community members.","source":""}]},"v":1}

   Verify offline (run on your own machine)

   python -m src.verify_decision 91fad4e7-065f-45df-913b-bfd8e08c8456copy