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# Sidereal Phase 1 Truth Findings (2026-04-16)

## Scope

This document is a subsystem audit artifact, not constitutional process doctrine.

Companion citation-closure artifact:
- [wiki/03_validation/SIDEREAL_SOURCE_CITATION_LEDGER_2026-04-16.md](SIDEREAL_SOURCE_CITATION_LEDGER_2026-04-16.md)

Target of audit:
- active sidereal systems currently employed by the default registry in moira/sidereal.py

Evidence discipline:
- Findings are derived from repository code truth only.
- No claim of physical-source possession is made in this document.
- Source lineages noted in code comments are treated as declared lineage, pending human verification.

## Phase 1 Finding Basis

Phase 1 (Truth Preservation) asks whether the subsystem has explicit, inspectable truth objects rather than implicit or guessed state.

For sidereal system enumeration, the minimum truth objects are:
- explicit named system constants
- explicit active system inventory
- explicit J2000 anchors for active systems
- explicit star-anchor definitions where applicable

## Active Employed Set

The active employed default set is Ayanamsa.ALL in moira/sidereal.py:199.

Count: 12 systems.

## System Findings

| System | Employed | Evidence (constant) | Evidence (J2000 anchor) | Star-anchor evidence | Finding |
|---|---|---|---|---|---|
| Lahiri | Yes | moira/sidereal.py:186 | moira/sidereal.py:220 | N/A | Phase 1 truth object present |
| Fagan-Bradley | Yes | moira/sidereal.py:187 | moira/sidereal.py:222 | N/A | Phase 1 truth object present |
| Krishnamurti | Yes | moira/sidereal.py:188 | moira/sidereal.py:224 | N/A | Phase 1 truth object present |
| Raman | Yes | moira/sidereal.py:189 | moira/sidereal.py:226 | N/A | Phase 1 truth object present |
| Yukteshwar | Yes | moira/sidereal.py:190 | moira/sidereal.py:228 | N/A | Phase 1 truth object present |
| Djwhal Khul | Yes | moira/sidereal.py:191 | moira/sidereal.py:230 | N/A | Phase 1 truth object present |
| True Chitrapaksha | Yes | moira/sidereal.py:192 | moira/sidereal.py:232 | moira/sidereal.py:267 | Phase 1 truth object present |
| De Luce | Yes | moira/sidereal.py:193 | moira/sidereal.py:234 | N/A | Phase 1 truth object present |
| Aldebaran (15 Tau) | Yes | moira/sidereal.py:194 | moira/sidereal.py:236 | moira/sidereal.py:273 | Phase 1 truth object present |
| True Revati | Yes | moira/sidereal.py:195 | moira/sidereal.py:238 | moira/sidereal.py:271 | Phase 1 truth object present |
| True Pushya | Yes | moira/sidereal.py:196 | moira/sidereal.py:240 | moira/sidereal.py:276 | Phase 1 truth object present |
| True Mula | Yes | moira/sidereal.py:197 | moira/sidereal.py:244 | moira/sidereal.py:278 | Phase 1 truth object present |

## Registry-Level Findings

- Active inventory is explicit and finite: moira/sidereal.py:199.
- Anchor table is explicit and total for active systems: moira/sidereal.py:218.
- Star-anchored systems have explicit anchor-star and target-longitude tuples: moira/sidereal.py:265.
- Drift adjustments are explicit where used: moira/sidereal.py:250.

## Source-Lineage Status (Non-Speculative)

The following are code-declared lineage labels and are not marked as physically verified in this file:
- Lahiri Commission lineage
- Fagan and Bradley lineage
- KP lineage
- Raman tables lineage
- Yukteshwar lineage
- Djwhal Khul lineage
- De Luce lineage
- Star-anchor conventions for Spica, Revati, Aldebaran, Pushya, and Shaula

Required for closure before release-level citation claims:
- human physical-reference verification and recorded bibliographic metadata for each lineage claim

## Conclusion

Phase 1 truth preservation for the currently employed sidereal default set is satisfied at code-truth level:
- every employed system is explicit
- every employed system has a defined anchor value path
- star-based systems have explicit anchors

Citation authority closure remains pending human physical-source verification.