This is an interesting discussion (see below) regarding whether the original whitepaper is open source or whether copyright applies.
The release of the whitepaper was by Satoshi Nakamoto on the Cypherpunks mailing list.
The mailing list has a Cypherpunks anti-License.
How convenient for the next public display of ignorance to come so quickly. Copyright is established the instant a work is affixed in tangible form. That copyright exists fully independent if any registration thereof. Absent any explicit delegation of rights to the public at large by its creator, the Bitcoin white paper is not public domain.
The bitcoin whitepaper was first distributed by Satoshi Nakamoto on the Cypherpunks mailing list. The mailing list has a Cypherpunks anti-License.
http://www.cypherspace.org/CPL/So that is still for the jury to decide.
The intent of the Cypherpunks anti-License (CPL) is to inform users that they are free to use and redistribute the indicated work or any derived or modified work in any manner they choose. Works distributed under the CPL are in the Public Domain.
Cypherpunks of which Satoshi Nakamoto (and later CSW) were members of clearly state:
The enforcement of IP law and anonymity are in direct conflict. To fully enforce IP laws, anonymity would have to be outlawed. Cypherpunks believe this would be a bad thing, because control of information imparts power, and anonymity gives individuals control over disclosure of information about themselves and their actions.
So there are two scenarios:
CSW is not Satoshi Nakamoto in which case he is presenting fraudulent documents and attempting to commit a fraud.
CSW is Satoshi Nakamoto and breached the moral principles of the group of people that directly assisted him with the creation of bitcoin.
Used their knowledge, skills and time in the creation of something that he later would try to claim IP rights to contrary to the groups goals. Resulting in a feeling of exploitation and huge betrayal.
Your choice. Which do you pick ?