Observed arrival · 2026-09-27
PayAuthors checks book records against LibGen and Books3
A free name check counts matching records in selected LibGen catalogs and the Books3 file list; paid reports add edition details and U.S. Copyright Office registration matches.
- For
- Authors checking catalog and training-set records
- Worth noticing
- The stamped PDF includes source-file SHA-256 checksums and explains what a matching record does—and does not—prove.
Field notes
The free search is deliberately limited: it returns counts by source, distinct-title totals, matched registrations, and ISBN presence in the Books3 list, but withholds specific titles until purchase. The described datasets are historical snapshots, including a June 5, 2021 LibGen catalog and Copyright Office TX registrations through July 2021. Reports include provenance details and explain that a record match is not, by itself, proof of a particular use or claim.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue