Many have been accused of hiding this identity, and some have even claimed the name for themselves. Few, however, have put in as much effort as the latest aspirant, who on Sunday published a 21 page teaser of a book that will allegedly spill all the secrets of the early days of Bitcoin.

On a newly-registered domain, the excerpt, titled "Duality", combines a potted history of the origins of Bitcoin, including the trials and tribulations of the early days, with supposed insight into Satoshi's personal background.

While the letter shows detailed knowledge of those involved in the early days of Bitcoin's development, including Hal Finney, Adam Back and Wei Dai, it does not bring any significant new information. Many of the details—like the trivia around Satoshi's family background—are already available in the public domain, suggesting that the narrative could be just another work of fiction.

Furthermore, no verifiable cryptographic proof is provided of the author's identity. Only a cryptogram that points to the title of the two yet-to-be-released books—