Sources
No black box. Every doctrine, traced.
The interpretive rubrics shipped by this engine describe traditional astrological doctrine in our own words, citing original public-domain sources as the textual origin. This is the audit trail of which sources we draw on and which we deliberately do not.
US copyright rule applied: works are treated as in the public domain if published before 1929 or if the author has been deceased for at least 95 years. Translations are evaluated independently of the original — a 2nd-century Greek source may be PD while a 2010 English translation of it is not.
Public domain
Drawn on.
Greek original; English via J. M. Ashmand (1822)
Greek original; English via Mark Riley (released to public domain by translator)
Latin original
Latin original
Latin original
Original English
Original
Original
Collected works — d. 1917
Collected works — d. 1929
Pre-1929 publications
In copyright
Explicitly excluded, deliberately.
all works
all works
including all Project Hindsight translations — PD ~2088
all works — PD ~2055
including the Sabian symbols — PD ~2050, estate active
including the cosmobiology midpoint catalog — PD ~2058
published after ~1929
When a doctrine widely associated with these authors is referenced (e.g., midpoint analysis, time-lord systems, symbolic-degree work), the rubric describes the doctrine using public-domain antecedents and in our own words, never reproducing the modern formulation's language.
Separate from interpretation
The astronomy sources — primary technical references, not copyrightable text.
Bretagnon & Francou (1988) — Mercury through Neptune, full series
Chapront & Francou (2003), A&A 404, 735 — production lunar theory, full 35,901-term series, DE405/406-fitted
Chapront-Touzé & Chapront (1983) — importable fallback evaluator
Hartmann et al. (2007), VizieR J/A+A/471/1069 — alternative evaluator for cross-validation
Wahr (1981) — top-15-term truncation
Dormand & Prince (1980) — explicit Runge-Kutta integrator core
DOPRI8 + 9-perturber force model (8 planets + Pluto via VSOP87D, plus PPN Schwarzschild + Sun J2), seeded from JPL Horizons J2000
Meeus, Astronomical Algorithms ch. 54 — limits + magnitude formulas
Placidus, Porphyry, Equal, Whole-Sign, Koch — standard formulations
Cited in full on /accuracy and in lib/api/version.ts's metadata, surfaced on the /api/v1/accuracy route.
If you believe a rubric in this engine reproduces in-copyright material, email admin@insightsbyomkar.com with subject “Source policy” and reference the relevant rubric.