A historical argument connecting the 2018 National Transgender Hotline, Shanghai's first Trans Pride, Peking University Third Hospital specialty pathways, and the legal gender recognition review through a public-interface and entry-point-density framework.

This research map organizes public transgender history in mainland China into seven intersecting paths—medicine, identity documents, work and courts, community infrastructure, public language, documentary regimes, and digital preservation—and introduces a historical conversion chain plus a source-switch method for reproducible reading.

A research encyclopedia entry tracing legal gender recognition in mainland China through household registration, resident identity cards, gender appraisal, local public-security procedures, and downstream institutional records, with an original document-cascade model.

Using hospital records, media narratives, administrative rules, community hotlines, litigation and surveys, and digital archives, this study reconstructs mainland China’s transgender public history through six documentary regimes and a reproducible source-card method.