Audit log

Every state-changing event for Loopring DEX — Trustless Exit Disabled at Shutdown: moderation decisions on community submissions, plus corrections and updates from the news pipeline. URL-based decisions are designed to carry three independent witnesses — the original source, an Internet Archive snapshot, and a Solana memo signed by our publicly-disclosed publisher key. Archive coverage is still being backfilled, so each decision below reports its own snapshot status rather than assuming one exists.

1. #1publishby system:backfill

   2026-08-01 23:15:05Z
   Score: ? → ? (no score change)
   anchorpending

   chain

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   hash

   AFdjwwQfANgt…qhf4TKYucopysha256 → base58

   verifying row…

   canonical bytes (20138 B) ▸

   {"actor":"system:backfill","investigation_id":"ab0f6bf4-0424-45be-a184-3257859bdf43","kind":"publish","page_slug":"loopring-dex-trustless-exit-disabled-at-shutdown","published_at":"2026-08-01T23:15:05.860Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"Loopring DEX — Trustless Exit Disabled at Shutdown","sections":[{"content":"Loopring announced the closure of its DEX, automated market maker, and relayer operations on June 28, 2026, via a farewell letter published on X (formerly Twitter). All trading services ceased immediately upon announcement. The team cited three primary causes: weak user adoption, limited business-development capability, and the architectural obsolescence of its non-EVM design relative to newer zkEVM networks that support Ethereum smart contracts natively. The team acknowledged that Loopring 'never gained meaningful adoption,' attributing this in part to its early architecture lacking a virtual machine, which prevented composability and limited practical payment use cases. More than 60 crypto projects reportedly shut down during 2026 according to data provider RootData, situating Loopring's closure within a broader industry contraction.","heading":"Shutdown Announcement and Immediate Cessation of Operations","severity":"high","sources":[{"credibility":2,"name":"Loopring Shuts Down Its DEX Disabling the Trustless Exit It Pioneered — CryptoTimes","type":"news_article","url":"https://www.cryptotimes.io/2026/06/29/loopring-shuts-down-its-dex-disabling-the-trustless-exit-it-pioneered/"},{"credibility":2,"name":"Loopring shuts down Ethereum's first zk rollup DEX after years of decline — Crypto.news","type":"news_article","url":"https://crypto.news/loopring-shuts-down-ethereums-first-zk-rollup-dex-after-years-of-decline/"},{"credibility":2,"name":"Loopring Shuts Down DEX — First zkRollup Ethereum Ends — Bitcoin Foundation","type":"news_article","url":"https://bitcoinfoundation.org/news/ethereum/loopring-closes/"}]},{"content":"The defining security guarantee of a zkRollup is that users never have to trust the operator to recover funds. In Loopring's original design, if the relayer went offline or the team disappeared, users could submit a Merkle proof directly to the Ethereum smart contract to withdraw their assets without any operator involvement — a permissionless escape hatch baked into the protocol's architecture. At shutdown, Loopring announced it would upgrade the DEX smart contract to a version that 'only allows whitelisted addresses (controlled by us) to transfer assets out of the L2 system.' The team acknowledged this approach is 'more centralized than its initial design.' This upgrade effectively transforms a trustless, self-custody protocol into a custodial arrangement at the precise moment users need to exit, requiring them to trust the team to correctly calculate balances, execute batch distributions, and not misappropriate funds. L2Beat had previously classified Loopring as Stage 0 and flagged that 'funds can be stolen if a contract receives a malicious code upgrade' and that 'there is no delay on code upgrades,' with a 2-of-3 multisig (LoopringMultisig) controlling the ExchangeV3 proxy owner role. The shutdown upgrade was executed using exactly this administrative control. Prior to closure, forced withdrawal and emergency Merkle-proof exit modes were available to users; those pathways no longer exist under the upgraded contract.","heading":"Disabling of Trustless Exit Mechanism — Core Protocol Concern","severity":"critical","sources":[{"credibility":2,"name":"Loopring Shuts Down Its DEX Disabling the Trustless Exit It Pioneered — CryptoTimes","type":"news_article","url":"https://www.cryptotimes.io/2026/06/29/loopring-shuts-down-its-dex-disabling-the-trustless-exit-it-pioneered/"},{"credibility":2,"name":"Loopring — L2Beat Project Page (archived June 29, 2026)","type":"research","url":"https://l2beat.com/scaling/projects/loopring"},{"credibility":2,"name":"Loopring Shuts Down Its Pioneering Ethereum zkRollup DEX — BanklessTimes","type":"news_article","url":"https://www.banklesstimes.com/articles/2026/06/29/loopring-shuts-down-its-pioneering-ethereum-zkrollup-dex/"}]},{"content":"Loopring committed to distributing all remaining user funds to their linked Ethereum Layer-1 wallets in batches, with the team covering associated gas costs. The process involves: (1) publishing a final Layer-2 balance list on X that includes spot balances and AMM positions; (2) a two-week review window during which users may flag discrepancies; and (3) batch distribution to Ethereum addresses after the review period. A critical exclusion applies: accounts with a final balance below $10 are excluded from distribution 'to keep the process efficient.' Users with sub-threshold balances have no recourse under the upgraded contract, as the independent Merkle-proof withdrawal path has been removed. Users are not required to take any active steps beyond verifying their listed balance during the review window. The team did not specify a completion date for the distribution process beyond 'within weeks of starting.'","heading":"Fund Distribution Process and $10 Minimum Threshold","severity":"high","sources":[{"credibility":2,"name":"Loopring Shuts Down Its DEX Disabling the Trustless Exit It Pioneered — CryptoTimes","type":"news_article","url":"https://www.cryptotimes.io/2026/06/29/loopring-shuts-down-its-dex-disabling-the-trustless-exit-it-pioneered/"},{"credibility":2,"name":"Loopring Shuts Down Its First zk-Rollup DEX, Citing No Adoption — CoinPaprika","type":"news_article","url":"https://coinpaprika.com/news/loopring-shuts-down-first-zk-rollup-dex/"},{"credibility":2,"name":"Loopring Shuts Down DEX — First zkRollup Ethereum Ends — Bitcoin Foundation","type":"news_article","url":"https://bitcoinfoundation.org/news/ethereum/loopring-closes/"}]},{"content":"Loopring's total value locked declined approximately 99% from a peak of roughly $760 million in November 2021 to approximately $8 million at the time of shutdown. The native LRC token fell from an all-time high of $3.75 to approximately $0.01 — a decline of more than 99.7%. Following the shutdown announcement, LRC declined a further approximately 4% to around $0.012. The protocol raised approximately $45 million in a 2017 ICO. The token's collapse was accelerated in early 2026 by exchange delistings: Upbit and Bithumb removed LRC in March 2026, citing deficiencies in disclosures and lack of business sustainability. Binance subsequently delisted LRC on April 1, 2026, having announced the removal on March 18, 2026. These delistings removed a large portion of LRC's trading volume. The protocol's wallet and DeFi products were shut down in 2025 prior to the DEX closure.","heading":"Financial Decline and Token Collapse","severity":"high","sources":[{"credibility":2,"name":"Binance to Delist 8 Major Altcoins in April Including FORTH, IDEX, LRC — CryptoTimes","type":"news_article","url":"https://www.cryptotimes.io/2026/03/18/binance-to-delist-8-major-altcoins-in-april-including-forth-idex-lrc/"},{"credibility":2,"name":"Loopring Delisting Shakes Crypto Market: Upbit and Bithumb Remove LRC Over Critical Compliance Failures — CryptoRank","type":"news_article","url":"https://cryptorank.io/news/feed/fcfd8-upbit-bithumb-loopring-delisting-lrc"},{"credibility":2,"name":"Loopring shuts down Ethereum's first zk rollup DEX after years of decline — Crypto.news","type":"news_article","url":"https://crypto.news/loopring-shuts-down-ethereums-first-zk-rollup-dex-after-years-of-decline/"}]},{"content":"In June 2024, Loopring's smart wallet infrastructure suffered a security breach resulting in approximately $5 million in losses. The attack exploited the Loopring Official Guardian service, which served as a two-factor authentication mechanism for smart wallet recovery. The attacker gained unauthorized access to the Guardian service, bypassed standard user authentication, and was able to reset ownership of affected wallets and drain funds. Wallets with only one guardian — specifically the Loopring Official Guardian — were the primary targets. Loopring's own risk disclosure had previously identified compromise of the Official Guardian as a potential attack vector. In response, Loopring suspended Guardian-related and 2FA-related operations and stated it was cooperating with law enforcement. No public confirmation of recovery or attacker identification has been reported in subsequent coverage.","heading":"June 2024 Guardian Service Hack","severity":"high","sources":[{"credibility":2,"name":"Loopring Smart Wallets Hacked: $5 Million Lost in Security Breach — BitKan","type":"news_article","url":"https://bitkan.com/news/loopring-smart-wallets-hacked-5-million-lost-in-security-breach-30634"},{"credibility":2,"name":"Loopring Hack: 2FA Breach Instigates $5 Million Drain — Blocmates","type":"news_article","url":"https://www.blocmates.com/news-posts/loopring-hack-2fa-breach-instigates-5-million-drain"},{"credibility":2,"name":"Loopring's Guardian Smart Wallets Hacked for $5 Million — Unchained Crypto","type":"news_article","url":"https://unchainedcrypto.com/looprings-guardian-smart-wallets-hacked-for-5-million/"}]},{"content":"Steve Guo, who served as Loopring's CEO after being elevated from CTO in February 2022 to replace founder Daniel Wang, announced his resignation effective end of August 2025. Guo cited a desire to spend more time with family. His departure came after Loopring shut down its consumer-facing smart wallet and DeFi products earlier in 2025. Community sentiment at the time of resignation was described as highly negative, with online commentary characterizing Guo as a 'fake CEO.' The LRC token rose approximately 9% following the resignation announcement, reflecting community interpretation of the departure as a potentially positive development. No successor CEO was publicly identified prior to the DEX's June 2026 shutdown.","heading":"Leadership Changes and Organizational Decline","severity":"medium","sources":[{"credibility":2,"name":"Loopring CEO Resigns, LRC Price Jumps 9% — Phemex News","type":"news_article","url":"https://phemex.com/news/article/loopring-ceo-resigns-lrc-price-jumps-9-amid-community-speculation-17033"},{"credibility":2,"name":"Loopring CEO resigns after 3 years, LRC surges 9% — Crypto.news","type":"news_article","url":"https://crypto.news/loopring-ceo-resigns-after-3-years-lrc-surges-9/"},{"credibility":1,"name":"Loopring Names CTO Steve Guo as CEO, Replacing Founder Wang — CoinDesk","type":"news_article","url":"https://www.coindesk.com/business/2022/02/03/loopring-names-cto-steve-guo-as-ceo-replacing-founder-wang"}]},{"content":"Prior to its shutdown and archiving on June 29, 2026, L2Beat classified Loopring as Stage 0 — the lowest tier in its rollup maturity framework. L2Beat flagged two critical gaps preventing advancement to Stage 1: upgrades lacked a 7-day exit window allowing users to withdraw before changes took effect, and the proof system did not meet L2Beat's trusted setup assessment standards. L2Beat's risk assessment explicitly stated: 'Funds can be stolen if a contract receives a malicious code upgrade. There is no delay on code upgrades.' The proxy owner role for ExchangeV3 was held by a 2-of-3 multisig (LoopringMultisig) that also controlled BlockVerifier, ForcedWithdrawalAgent, and LoopringV3. This architecture, which L2Beat had publicly documented as a centralization risk, is the same mechanism the team used to execute the shutdown contract upgrade that disabled the trustless exit.","heading":"L2Beat Security Classification and Pre-Existing Upgrade Risk","severity":"critical","sources":[{"credibility":2,"name":"Loopring — L2Beat Project Page (archived June 29, 2026)","type":"research","url":"https://l2beat.com/scaling/projects/loopring"}]},{"content":"Community reaction to the shutdown was strongly negative. One comment documented in coverage stated: 'If I were you guys, I wouldn't ever put on any future resume that you worked on Loopring — so many people have lost so much money hoping this was not a scam, but here you are, apologizing for failure of a project.' Another documented comment stated: 'DO NOT COME OUT. EVER.' directed at the team. The primary criticism focused on the removal of the trustless exit, with commentators noting that the defining feature of a zkRollup is the ability to withdraw without operator trust, and that Loopring was eliminating this guarantee at the exact moment users required it. No organized legal action or regulatory complaint had been publicly reported as of the time of these news articles.","heading":"Community Response","severity":"medium","sources":[{"credibility":2,"name":"Loopring Shuts Down Its DEX Disabling the Trustless Exit It Pioneered — CryptoTimes","type":"news_article","url":"https://www.cryptotimes.io/2026/06/29/loopring-shuts-down-its-dex-disabling-the-trustless-exit-it-pioneered/"},{"credibility":2,"name":"Loopring Shuts Down DEX — First zkRollup Ethereum Ends — Bitcoin Foundation","type":"news_article","url":"https://bitcoinfoundation.org/news/ethereum/loopring-closes/"}]}],"sources_used":[{"credibility":2,"name":"Loopring Shuts Down Its DEX Disabling the Trustless Exit It Pioneered — CryptoTimes","type":"news_article","url":"https://www.cryptotimes.io/2026/06/29/loopring-shuts-down-its-dex-disabling-the-trustless-exit-it-pioneered/"},{"credibility":2,"name":"Loopring shuts down Ethereum's first zk rollup DEX after years of decline — Crypto.news","type":"news_article","url":"https://crypto.news/loopring-shuts-down-ethereums-first-zk-rollup-dex-after-years-of-decline/"},{"credibility":2,"name":"Loopring Shuts Down DEX — First zkRollup Ethereum Ends — Bitcoin Foundation","type":"news_article","url":"https://bitcoinfoundation.org/news/ethereum/loopring-closes/"},{"credibility":2,"name":"Loopring Shuts Down Its Pioneering Ethereum zkRollup DEX — BanklessTimes","type":"news_article","url":"https://www.banklesstimes.com/articles/2026/06/29/loopring-shuts-down-its-pioneering-ethereum-zkrollup-dex/"},{"credibility":1,"name":"Ethereum zkRollup project Loopring sunsets DEX, citing lack of meaningful adoption — The Block","type":"news_article","url":"https://www.theblock.co/post/406492/loopring-sunsets-dex"},{"credibility":2,"name":"Loopring — L2Beat Project Page (archived June 29, 2026)","type":"research","url":"https://l2beat.com/scaling/projects/loopring"},{"credibility":2,"name":"Loopring Shuts Down Its First zk-Rollup DEX, Citing No Adoption — CoinPaprika","type":"news_article","url":"https://coinpaprika.com/news/loopring-shuts-down-first-zk-rollup-dex/"},{"credibility":2,"name":"Binance to Delist 8 Major Altcoins in April Including FORTH, IDEX, LRC — CryptoTimes","type":"news_article","url":"https://www.cryptotimes.io/2026/03/18/binance-to-delist-8-major-altcoins-in-april-including-forth-idex-lrc/"},{"credibility":2,"name":"Loopring Delisting Shakes Crypto Market: Upbit and Bithumb Remove LRC Over Critical Compliance Failures — CryptoRank","type":"news_article","url":"https://cryptorank.io/news/feed/fcfd8-upbit-bithumb-loopring-delisting-lrc"},{"credibility":2,"name":"Loopring Smart Wallets Hacked: $5 Million Lost in Security Breach — BitKan","type":"news_article","url":"https://bitkan.com/news/loopring-smart-wallets-hacked-5-million-lost-in-security-breach-30634"},{"credibility":2,"name":"Loopring Hack: 2FA Breach Instigates $5 Million Drain — Blocmates","type":"news_article","url":"https://www.blocmates.com/news-posts/loopring-hack-2fa-breach-instigates-5-million-drain"},{"credibility":2,"name":"Loopring's Guardian Smart Wallets Hacked for $5 Million — Unchained Crypto","type":"news_article","url":"https://unchainedcrypto.com/looprings-guardian-smart-wallets-hacked-for-5-million/"},{"credibility":2,"name":"Loopring CEO Resigns, LRC Price Jumps 9% — Phemex News","type":"news_article","url":"https://phemex.com/news/article/loopring-ceo-resigns-lrc-price-jumps-9-amid-community-speculation-17033"},{"credibility":2,"name":"Loopring CEO resigns after 3 years, LRC surges 9% — Crypto.news","type":"news_article","url":"https://crypto.news/loopring-ceo-resigns-after-3-years-lrc-surges-9/"},{"credibility":1,"name":"Loopring Names CTO Steve Guo as CEO, Replacing Founder Wang — CoinDesk","type":"news_article","url":"https://www.coindesk.com/business/2022/02/03/loopring-names-cto-steve-guo-as-ceo-replacing-founder-wang"},{"credibility":2,"name":"Loopring (LRC) faces liquidity hit after Upbit delist — Whale Alert","type":"news_article","url":"https://whale-alert.io/stories/c09b01dc4d02cf/Loopring-LRC-faces-liquidity-hit-after-Upbit-delist-Binance-delisting-scheduled-Apr-1-long-term-recovery-hinges-on-Layer3-adoption"}],"summary":"Loopring, Ethereum's first zkRollup decentralized exchange, announced its immediate shutdown on June 28, 2026, citing a 99% collapse in total value locked and failure to achieve meaningful adoption. At shutdown, the team unilaterally upgraded the DEX smart contract to restrict withdrawals exclusively to team-controlled whitelisted addresses, disabling the permissionless Merkle-proof escape hatch that was the protocol's defining security guarantee and replacing it with a custodial batch-distribution process. Users with balances below $10 are excluded from distribution entirely.","timeline":[{"date":"2017-08-01","event":"Loopring protocol founded and approximately $45 million raised in ICO.","source":"Bitcoin Foundation / general coverage","source_url":"https://bitcoinfoundation.org/news/ethereum/loopring-closes/"},{"date":"2022-02-03","event":"Steve Guo elevated from CTO to CEO, replacing founder Daniel Wang.","source":"CoinDesk","source_url":"https://www.coindesk.com/business/2022/02/03/loopring-names-cto-steve-guo-as-ceo-replacing-founder-wang"},{"date":"2021-11-01","event":"Loopring DEX total value locked peaks at approximately $760 million.","source":"Crypto.news","source_url":"https://crypto.news/loopring-shuts-down-ethereums-first-zk-rollup-dex-after-years-of-decline/"},{"date":"2024-06-01","event":"Loopring Guardian smart wallet service compromised; approximately $5 million drained from user wallets via 2FA bypass.","source":"Unchained Crypto","source_url":"https://unchainedcrypto.com/looprings-guardian-smart-wallets-hacked-for-5-million/"},{"date":"2025-07-01","event":"Loopring shuts down consumer wallet and DeFi products; refocuses on Layer-2 protocol only.","source":"Crypto.news","source_url":"https://crypto.news/loopring-ceo-resigns-after-3-years-lrc-surges-9/"},{"date":"2025-08-31","event":"CEO Steve Guo resigns effective end of August 2025; LRC token rises 9% on the announcement.","source":"Phemex News","source_url":"https://phemex.com/news/article/loopring-ceo-resigns-lrc-price-jumps-9-amid-community-speculation-17033"},{"date":"2026-03-16","event":"Upbit and Bithumb delist LRC, citing deficiencies in disclosures and lack of business sustainability.","source":"CryptoRank","source_url":"https://cryptorank.io/news/feed/fcfd8-upbit-bithumb-loopring-delisting-lrc"},{"date":"2026-03-18","event":"Binance announces LRC delisting effective April 1, 2026.","source":"CryptoTimes","source_url":"https://www.cryptotimes.io/2026/03/18/binance-to-delist-8-major-altcoins-in-april-including-forth-idex-lrc/"},{"date":"2026-04-01","event":"Binance delists LRC; Binance withdrawal support for LRC continues through June 2026.","source":"CryptoTimes","source_url":"https://www.cryptotimes.io/2026/03/18/binance-to-delist-8-major-altcoins-in-april-including-forth-idex-lrc/"},{"date":"2026-06-28","event":"Loopring announces immediate shutdown of DEX, AMM, and relayer; announces plan to upgrade smart contract to restrict withdrawals to team-controlled whitelisted addresses only.","source":"CryptoTimes","source_url":"https://www.cryptotimes.io/2026/06/29/loopring-shuts-down-its-dex-disabling-the-trustless-exit-it-pioneered/"},{"date":"2026-06-29","event":"L2Beat archives Loopring project page; classification remains Stage 0.","source":"L2Beat","source_url":"https://l2beat.com/scaling/projects/loopring"}]},"v":1}

   Verify offline (run on your own machine)

   python -m src.verify_decision a2003659-d112-4938-b168-7c1d35724ca3copy