Matter Harmony & observer banks / Report

Matter Harmony Lab 1.5.0 — Frozen hydrogen-isotope holdout

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01 / THE QUESTION

Editorial guide

Does a Yukawa-like operator frozen on the H–D 1S–2S residual improve the ordinary prediction of the historical H–D 2S–8S isotope shift?

02 / WHAT THE RECORD SAYS

Source passage

The frozen operator earns no predictive credit because it does not improve the absolute holdout residual. It is also not excluded: this target cannot resolve the two models at anything close to three sigma.

03 / LIMITS & OPEN POINTS

Source passage

This is a historical published-data holdout, not a blind prospective experiment.

04 / THE NEXT QUESTION

Source passage

Rank candidate transitions by that pre-measurement resolution ratio, freeze one target and ordinary-theory covariance, then score it once without refitting.

05 / CHECKS IN THE RECORD

Source passage

An audit that imports neither production isotope module recomputes the Yukawa matrix elements by direct radial quadrature and independently replays the covariance. It reproduces the material prediction.

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Source & provenance

Access: Public
Dates declared in the record: Not recorded
Project basis: Explicit project source citation
Origin: d0re research collection (snapshot 1 October 2026)
Original path: archive/matter-harmony-lab-1.5.0-matter-harmony-lab-RESULTS_1.5.md
Authorship basis: Collection attribution; original record retains its own credits
Title basis: From the source
Date: Date not recorded
Status basis: Results file of release 1.5.0, the latest Matter Harmony Lab release; the README r-ea8e9ad72c3a describes the same release: "One interaction range is fixed at the electron reduced Compton wavelength, and its coupling is set only by the earlier 1S--2S residual."
Size: 2,480 bytes
Word count: 345 words
SHA-256 of indexed source: 50f47ab4cdb82c87d096ef440db9ed6d4656b3a8103634bfd1f3cfa220e95121

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Matter Harmony Lab 1.5.0 — Frozen hydrogen-isotope holdout
Date not recorded
d0re research record r-50f47ab4cdb8
https://www.d0re.com/library/records/r-50f47ab4cdb8.html
Authorship basis: Collection attribution; original record retains its own credits
Date basis: Not recorded
Source SHA-256: 50f47ab4cdb82c87d096ef440db9ed6d4656b3a8103634bfd1f3cfa220e95121