Mark Karpeles

2 entries

Event February 28, 2014 Article

Mt. Gox files for bankruptcy — 850,000 BTC lost

Mt. Gox — once the world's largest Bitcoin exchange handling ~70% of transactions — filed for bankruptcy in Tokyo. CEO Mark Karpeles revealed ~850,000 BTC (~$450M) had been lost.

Updated June 2, 2026 Analysis

Lost Bitcoin — Thomas, Howells, QuadrigaCX, Mt. Gox, FTX and the irreversibility lesson

Bitcoin Institute ↔ Stefan Thomas, James Howells, Gerald Cotten, Mark Karpeles, Sam Bankman-Fried

Cross-cutting reading of iconic Bitcoin losses by mechanism: forgotten password (Thomas), physical disposal (Howells), custody-collapse (QuadrigaCX, Mt. Gox, FTX). Tied to Bitcoin's irreversibility.