Primary sources: The Web4 Paper and the Stack Reference Implementation are published at web4.one.
Academic access: Both are available through an SSRN portal for citation and download, and were submitted to IEEE.
The two documents: Web4: A Seven-Layer Sovereign-Ownership Architecture for the Next Generation of the Internet sets out the argument and the layer model. The companion technical report, Web4 Reference Implementation: A Seven-Layer Sovereign Stack by LINKSPREED, describes how the model is realized in practice.
Citing the work: Use the SSRN entries for stable academic citation; the web4.one portal links to the current versions.