Primecoin primality test

18 · John Cook · Jan. 10, 2026, 4:39 p.m.
Summary
This blog post discusses the details of mining a new Primecoin block by finding a prime chain of a specific length that begins with a multiple of the block header hash, as initially outlined in the Primecoin whitepaper. It sheds light on the technicalities involved in Primecoin's mechanism.