Craig Wright has filed United States copyright registrations for the Bitcoin (BTC) white paper authored by Satoshi Nakamoto.

Court documents show that the U.S. Copyright Office has registrations with Wright as the author of the white paper, as well as most of the original code used to build Bitcoin.

The Australian entrepreneur has long claimed to have written the cryptocurrency blueprint under the pseudonym.

A news release from May 21 claims that U.S. officials have received confirmation that Wright is indeed Satoshi Nakamoto, but the news has been met with skepticism from some crypto commentators.

Jerry Brito, executive director at non-profit organization Coin Center, tweeted:

“Registering a copyright is just filing a form. The Copyright Office does not investigate the validity of the claim; they just register it. Unfortunately there is no official way to challenge a registration. If there are competing claims, the Office will just register all of them.”

According to the news release, Wright is making moves to establish himself as Bitcoin’s creator “after being dismayed to see his original Bitcoin design bastardized by protocol developer groups.”

It is believed that Wright is planning to assign the copyright registrations to the Bitcoin Association.

The businessman is currently the chief scientist at a startup known as nChain. The entrepreneur has been known for attracting controversy, with major crypto platforms recently beginning to boycott bitcoin sv (BSV,) the fork of bitcoin cash (BCH) which he backs.