Archive
The early papers, kept as history.
These documents asked how a payment or a program could be shared without a single editor. They are not a description of the networks that carry those names now.
Read them as designs
Start with the Bitcoin PDF and the Ethereum paper in the historic library. Then read a current study only where this site has separated the paper from the later client. Do not treat a 2008 or 2014 text as an operating manual.