SGA 1-6: Compact English Working Readers, Reference-Linked Editions, and Audit Archives

This same-concept compact successor preserves 70 files from version 10.5281/zenodo.21639459 byte-identically, refreshes the three release controls, and adds complete bounded SGA3 Exposes XII, XIX, and XXV as three direct working readers, three direct editable master TeX files, and three grouped source/QA ZIPs. SGA1 remains the default preview. The three new A4 readers comprise 92 pages. Expose XII has 51 pages, 287 named destinations, and 28 valid internal GoTo actions; Expose XIX has 27 pages, 174 destinations, and 55 actions; Expose XXV has 14 pages, 85 destinations, and 29 actions. All have zero invalid or external actions, zero Type3 fonts, and zero raster XObjects. Their 40 editable TeX files contain five native diagram blocks and no raster diagram inclusions. Expose XII's two diagrams passed direct top-level lead comparison at 5000 dpi, with a 9000-dpi escalation and one corrected label-side placement. Expose XIX's diagram passed a fresh archive 5000-dpi authority replay. Expose XXV's two diagrams passed top-level lead 5000-dpi review. Existing 600- and 1200-dpi evidence remains valid append-only history and context. Each reader passed three producer and three independent archive build passes. All 92 producer/rebuild pages match in extracted text, decoded page-content streams, geometry, and 150-dpi raster output. Every page was visually reviewed. The three source ZIPs contain 67 safe file members and exclude authority pixels, high-resolution crops, raster diagrams, raw private logs, and private paths. The existing 1,182-page SGA3 current-progress cumulative reader remains available as readable history and is not represented as native-diagram final. These standalone readers preserve completed work without claiming that SGA3 is complete. Exposes XX and XXI remain open under the Session-C native-diagram control, and Expose XXVI remains active. The controlling Polo-Gille authority PDFs are identity controls only and are not redistributed. Floris's pre-existing GPU OCR may be consulted read-only as locator or drafting evidence and was not regenerated. Jacob C. Reinhold's jcreinhold/sga English lineage at revision e7a259f3f8608ad3edf9bf6eead3fd504dd2d23e is credited comparison material, not source authority; its stated CC BY 4.0 applies only to that contribution. These packages are bounded scholarly working readers, not complete SGA3, critical editions, exhaustive reference-v2 certification, rights clearance, mathematical certification, peer review, or tagged-PDF accessibility remediation. No blanket license or transfer of underlying rights is asserted. Machine-assisted contributors include OpenAI Codex / ChatGPT and Anthropic Claude under human direction.