Classical-derived D60 source adjudication

Date: 7 October 2026. Owner: moira.varga, VED-003. Decision: admit classical_derived_linear as a full-position policy with explicit Moira derivation. Its classical basis is established at the scopes below; a directly prescribed classical D60 degree algorithm is not claimed.

This reconciliation supersedes the earlier refusal to admit a derived classical profile in the narrower adjudication. That review could not support a collection-wide absence claim. The modern pvr_textbook_linear profile retains its separate authorship and locators. The source standard governs the public policy; validation records the implemented and exercised surfaces.

Reviewed sources and authority roles

All local book paths below are relative to C:\dev\ASTROLOGY-BOOKS-DATABASE\Classics books. All PDF locators are one-based. Printed and PDF page numbers are distinguished deliberately.

Source	Reviewed locator	Computational role	Boundary
BPHS, R. Santhanam, Vol. I	6.33-41 and commentary; printed 83 / PDF 82	60 half-degree subdivisions; destination signs counted forward from the natal sign; even-sign deity reversal	No continuous D60 degrees in that passage
Kalyana Varma, Saravali	III.18; local English electronic PDF 8; university Sanskrit transcription	General subdivision coordinate: arcminutes times subdivision count divided by 1800	Does not prescribe a mapped 0-30 degree D60 longitude or its destination-sign sequence
Vaidyanatha Dikshita, Jataka Parijata; translation/notes V. Subramanya Sastri	III.43; printed 139 / PDF 139; publisher describes a reprint of the 1932 edition	Fraction of a D12 subdivision traversed by the Moon corresponds to the same fraction of a later whole sign	Immediate object is a birth-timing technique, not a D60 chart
Prasna Marga, translation/notes B. V. Raman	Notes following V.27-28; printed 171-173 / facsimile PDF 200-202	Explicit continuous Navamsa longitude: multiply natal within-sign degrees by 9 and retain the angular remainder after division by 30	Formulation is in Raman's NOTES, not the literal Sanskrit stanzas; it concerns D9
Moira derivation, version 1	This admission, proportional construction below	Extend fractional subdivision progress to a full coordinate inside the separately assigned D60 sign	Derived classical support, not a claimed direct classical D60 degree verse

The local Saravali electronic English file has no dependable translator/title attribution. None is guessed. Its underlying Sanskrit arithmetic was checked against Central Sanskrit University Lucknow, Saravali chapter 3, verse 18. That transcription corroborates the arithmetic, not a D60-specific extension.

The Prasna Marga Word extraction was checked against a printed facsimile of Raman's Part I. The Sanskrit stanzas and translation occupy printed 170-171 / PDF 199-200; the separately headed notes contain the degree arithmetic and examples. Governing facsimile pages, the Jataka Parijata passage and BPHS page were visually checked. A converted Word text alone does not establish page layout or the distinction between stanza and commentary.

File identity receipts

File	SHA-256
BPHS-Santhanam-Vol-1.pdf	13609f1af89541e070c798b8c70c6bfd74a8b9a71a71388913bf898e9f9ddf3f
Kalyana Varmas Saravali.pdf	39c2ba173fa4c9ca019b47aee35eb3d9c19f61e61f5cfea2f54eb50e0d244f58
Jataka-Parijata-Vol-1.pdf	392d1b15e86824f78339ddda0a9c358372f7be69d9f6aeece24d8d0e7c782dc1
PRASNA MARGA.doc	35d6a063e55e91574c136b7ebb40afea81a868cb6a3955eb1f08b837c95838ed
Retrieved Raman Part I facsimile	484bbce4a10a01bf51ec6891597107ac04208661cabb219821be4369807e0bd6

No complete copyrighted text or external implementation is added to runtime or the public repository. The public record contains bibliographic locators, identities, factual paraphrases and arithmetic examples. Private research receipts remain at C:\dev\outputs\vedic-d60-library-audit-2026-10-07: FINDINGS.md, inventory, Word extraction manifest, selected renders and online retrieval receipts.

Proportional construction and policy

For normalized sidereal longitude L, natal sign s=floor(L/30), and within-sign degrees d=L-30*s, Saravali's subdivision coordinate for N parts is:

u = (60*d)*N / 1800 = N*d/30
k = floor(u)
progress = u-k

For N=60, u=2*d. BPHS Santhanam separately selects destination sign j=(s+k)%12. Moira maps the fraction traversed within the subdivision onto the fraction traversed within that destination sign:

degree = 30*progress = 60*(d-0.5*k)
mapped_longitude = 30*j + degree

Saravali supplies the subdivision arithmetic. Jataka Parijata supplies a classical fractional correspondence in its stated D12 technique. Raman's notes give explicit full Navamsa degree arithmetic. Extending this coordinate interpretation to D60 is the Moira inference. It is not inferred from Vimshopaka weights or claimed as a sentence in BPHS, Saravali, Jataka Parijata or Prasna Marga that prescribes D60 degrees.

Both natal parities count signs forward. Only the selected deity sequence reverses in even natal signs. Each interval is half-open: its start maps to zero, its excluded end belongs to the next subdivision, including natal-sign and zodiac wraps. Finite direct numbers normalize circularly; coercion and unknown/inapplicable selectors fail explicitly. Representable left limits stay in their selected sign when longitude addition rounds to the next sign. The existing source-profile numerical handling is shared, not copied from a comparator or replaced with global harmonic sign assignment.

The two full source profiles intentionally have equal coordinates under this declared forward/proportional policy. The modern profile has a different admitted authority chain. No frame, ayanamsa, ephemeris or default is changed.

Published examples and errata

Example	Source evidence	Use in validation
Capricorn 13 degrees 25 minutes -> Pisces	Santhanam 6.33 commentary publishes the destination sign	Source sign witness; 25 degrees inside Pisces is independently derived, not published there
Sun at Cancer 24 degrees 25 minutes -> Aquarius 9 degrees 45 minutes in D9	Raman's notes publish both input and full Navamsa coordinate	Primary commentarial degree example; exact rational arithmetic and existing Navamsa path agree
Moon at Taurus 25 degrees 11 minutes -> Leo 16 degrees 39 minutes in D9	Raman's notes publish both input and full Navamsa coordinate	Second primary commentarial example under a different natal/sign condition

Raman's Gulika example starts from 12 degrees 44 minutes, but a later line prints 12 degrees 40 minutes while retaining the product 114 degrees 36 minutes. The product agrees with 12 degrees 44 minutes. Preserve that erratum; the inconsistent line is not an independent numerical oracle.

These D9 examples support the stated commentarial degree construction. They do not become published D60 examples by changing a label. The D60 coordinate construction is checked independently using rational arithmetic and the existing frozen secondary-engine corpus. Software agreement supports the declared mapping; it does not manufacture historical attribution.

Search coverage and admission boundary

The wider inventory contains 220 files: 185 PDFs, 32 legacy Word documents and three HTML/text files. Embedded text was extracted from 22,113 PDF pages; 16,016 met the conservative 80-alphanumeric-character threshold and 6,097 did not. Low-text pages are individually recorded and are not searched negatives. All 32 Word documents decoded successfully. Automated triage produced 870 candidate PDF pages; manual review concentrated on the strongest relevant passages, rather than reading every candidate line by line. Nineteen selected page images were OCRed for retrieval/title verification. Governing passages above were visually checked. Image-only Deva Keralam and Brihat Jataka facsimiles were not completely OCRed; no exhaustive absence claim is made. The Deva-keralam.pdf title page identifies Book II.

The finite admission task is complete: the classical-derived policy supplies full degrees with precise provenance and tested behavior. A direct classical D60 degree prescription and an exact primary-published planetary D1/full-D60 pair remain unclaimed evidence frontiers. They do not block this derived policy or imply unfinished computational validation. Predictive validity and current PVR Jagannatha Hora equivalence are also outside this admission.