Are there any works of science fiction out there that relate to blockchain technology? It feels like science fiction is lagging behind Bitcoin and the blockchain technology that is powering it.  Are there any writers who have discussed similar technology in their stories? Even in the past 5 years?

See also the same question at the ethereum forum
Found one: Stephenson's Cryptonomicon.

See also Digital Currency: ten years before Bitcoin, Neal Stephenson's Cryptonomicon