Context
The research record preserves failed approaches when they expose a model boundary, an invalid transfer, or an unsupported strengthening.
Proof or evidence
the public 1979 scan exposes the decisive formulas as images, and the page itself became access-restricted during inspection. OCR text was insufficient for an exact sign-sensitive identity. A later primary arXiv source, Landsberg--Ryder 2015, supplies the complete BCLR curve.
Verification notes
The failure status and preserved lesson are recorded in the cumulative failure ledger.
Limitations
- coefficient-level calibration requires source TeX, legible mathematics, or an independently verified reconstruction; prose OCR is not enough.