http://yw7nc56v4nsudvwewhmhhwltxpncedfuc43qbubj4nmwhdhwtiu4o6yd.onion/t/bit-gold-2005/88
Here are the main steps of the bit gold system that I envision: A public string of bits, the “challenge string,” is created (see step 5). Alice on her computer generates the proof of work string from the challenge bits using a benchmark function. The proof of work is securely timestamped.