Audit log

Every state-changing event for GDAC: 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

   2026-05-20 18:36:40Z
   Score: ? → ? (no score change)
   anchoranchored

   chain

   ●mainnet-betaslot 421,041,180

   sig

   51iQ2FSKc8Te…kW3tz6Ubcopyexplorer ↗

   hash

   ZimCUprNozk6…QTVtsWPBcopysha256 → base58

   verifying row…full verify ↗

   canonical bytes (4076 B) ▸

   {"actor":"system:backfill","investigation_id":"3f9c6113-47e0-4ee0-ba5a-58c66689389f","kind":"publish","page_slug":"gdac","published_at":"2026-05-20T18:36:40.239Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"GDAC","sections":[{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://peertec.com/we-are/"},{"credibility":3,"name":"","type":"other","url":"https://www.crunchbase.com/organization/gdac-peertech"},{"credibility":3,"name":"","type":"other","url":"https://www.cryptowisser.com/exchange/gdac/"}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://www.coindesk.com/tech/2023/04/10/s-korean-crypto-exchange-gdac-hacked-for-nearly-13m"},{"credibility":3,"name":"","type":"other","url":"https://www.financemagnates.com/cryptocurrency/south-korea-crypto-exchange-gdac-loses-23-of-assets-to-hackers/"},{"credibility":3,"name":"","type":"other","url":"https://decrypt.co/125834/hackers-rob-south-korean-exchange-13m-bitcoin-ethereum-other-assets"},{"credibility":3,"name":"","type":"other","url":"https://cointelegraph.com/news/south-korean-crypto-exchange-gdac-hacked-for-nearly-14m"},{"credibility":3,"name":"","type":"other","url":"https://cryptoslate.com/korea-based-exchange-gdac-suspends-withdrawals-and-deposits-after-13m-hack/"}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://www.chaincatcher.com/en/article/2166179"},{"credibility":3,"name":"","type":"other","url":"https://sumsub.com/blog/south-korea-crypto-and-travel-rule-regulations-all-you-need-to-know/"},{"credibility":3,"name":"","type":"other","url":"https://www.thekoreanlawblog.com/2024/10/registering-a-virtual-asset-service-provider-in-korea.html"}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://glavx.org/gdac-crypto-exchange-review-what-happened-and-why-it-failed"},{"credibility":3,"name":"","type":"other","url":"https://www.coinspeaker.com/gdac-deposits-withdrawals-14m-hack/"}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://www.coindesk.com/tech/2023/04/10/s-korean-crypto-exchange-gdac-hacked-for-nearly-13m"},{"credibility":3,"name":"","type":"other","url":"https://www.financemagnates.com/cryptocurrency/south-korea-crypto-exchange-gdac-loses-23-of-assets-to-hackers/"},{"credibility":3,"name":"","type":"other","url":"https://www.chaincatcher.com/en/article/2166179"}]}],"sources_used":[],"summary":"GDAC was a South Korean cryptocurrency exchange operated by Peertec Co., Ltd. that launched in May 2018 and was registered as a Virtual Asset Service Provider (VASP) with Korea's Financial Intelligence Unit (KoFIU). On April 9, 2023, attackers drained approximately $13–14 million from its hot wallets — representing 23% of total custodial assets — causing the exchange to permanently shut down with no compensation offered to affected users.","timeline":[{"date":"2017-12","event":"Peertec Co., Ltd. incorporated in Seoul, South Korea.","source":""},{"date":"2018-05","event":"GDAC cryptocurrency exchange launches.","source":""},{"date":"2018-09","event":"GDAC opens Korean Won (KRW) fiat trading market.","source":""},{"date":"2023-04-09","event":"Attackers drain approximately $13–14.2M from GDAC hot wallets at 7:00 a.m. KST, stealing ~60.8 BTC, 350.5 ETH, 10M WEMIX, and 220,000 USDT — 23% of total custodial assets.","source":""},{"date":"2023-04-10","event":"GDAC CEO Seunghwan Han publicly confirms the breach. Exchange suspends all deposits and withdrawals. KISA, KoFIU, and Korean National Police Agency are notified.","source":""},{"date":"2023-04","event":"GDAC permanently ceases operations. No compensation plan announced for affected users.","source":""},{"date":"2025-02","event":"KoFIU confirms GDAC has been removed from the South Korean VASP registry, alongside ProBit and Huobi Korea.","source":""}]},"v":1}

   Verify offline (run on your own machine)

   python -m src.verify_decision f713a8a7-58b4-491e-a6c0-906a1a173a8bcopy