The arXiv sciences — physics, mathematics, statistics, and computer science, with chemistry's ChemRxiv. Every version of every paper, sealed as a chain; cite-checkable metadata across the field.
Coming soon
Like every listing in this line: collected from the source, sealed at collection, cite-checkable against the sealed record — and served only as far as each record's license allows.
The preprint sciences live on arXiv, where a paper is not one document but a chain of versions. This corpus seals the chain: every version's metadata, every withdrawal, every journal-reference join as a preprint becomes a published article — the richest revision record in scholarship.
arXiv's own license grants arXiv the right to distribute its papers, not us — so this corpus serves arXiv metadata and the sealed version history, and links back to arXiv for the papers themselves. ChemRxiv preprints ride under their per-record licenses: the openly licensed ones are served in full; the rest are metadata and proof.
This listing is in the build queue, behind the first releases. This page becomes the product page at release.
Every record carries its recorded license, sealed with the record. Full text is served only where that license allows it; everything else is served as metadata, hashes, and change history.