A Verbatim-Grounded, Field-Neutral Tag Layer for Cross-Disciplinary Reading of Academic Literature

A field-neutral, verbatim-grounded tag layer for academic literature. Every paper is described with the same small set of faceted tags (claim type, phenomenon as a normalised cross-field join key, claim relations, replication status, limitations), each grounded in an exact sentence from the paper's own text. A proof-of-format on a curated 126-paper corpus spanning 39 disciplines (116 fully faceted). Full text is reproduced only for open-access / arXiv / public-domain / CC-BY papers; paywalled originals are linked by DOI, not reproduced.