Ken Shirriff

Computer history, restoring vintage computers, IC reverse engineering, and whatever

Visit righto.com → RSS feedOn Hacker News Jul 2013 – Oct 2026

This article is now available in Japanese: 紙と鉛筆でビットコインをマイニング：1日に0.67ハッシュ and Russian: Майним Bitcoin с помощью бумаги и ручки . I decided...

I've been restoring a Xerox Alto minicomputer from the 1970s and figured it would be interesting to see if it could mine bitcoins. I coded u...

All the recent media attention on Bitcoin inspired me to learn how Bitcoin really works, right down to the bytes flowing through the netwo...

We've been restoring an Apollo Guidance Computer 1 . Now that we have the world's only working AGC, I decided to write some code for it. Try...

In October 2011, Mt Gox lost over 2609 bitcoins by accidentally creating transactions that can never be redeemed. (At the time, 2609 bitcoin...

Could an IBM mainframe from the 1960s mine Bitcoin? The idea seemed crazy, so I decided to find out. I implemented the Bitcoin hash algorith...

This article explains Bitcoin mining in details, right down to the hex data and network traffic. If you've ever wondered what really happe...

"Malleability" of Bitcoin transactions has recently become a major issue. This article looks at how transactions are modified, at the byte...

Every Bitcoin transaction is stored in the distributed database known as the Bitcoin blockchain. However, people have found ways to hack ...