http://yw7nc56v4nsudvwewhmhhwltxpncedfuc43qbubj4nmwhdhwtiu4o6yd.onion/t/bit-gold-2005/88
The last-created string of bit gold provides the challenge bits for the next-created string. To verify that Alice is the owner of a particular string of bit gold, Bob checks the unforgeable chain of title in the bit gold title registry. To assay the value of a string of bit gold, Bob checks and verifies the challenge bits, the proof of work string, and the timestamp.