{ "schema_version": 1, "decision_id": "pancha_pakshi_1879_fixed_clock_materialization_2026_07_20", "decided_at_utc": "2026-07-20T15:50:57Z", "decision_kind": "additive_modern_fixed_clock_materialization_admission", "profile_id": "agastya_madras_1879_akshara_fixed_clock", "prior_admission": { "decision_id": "pancha_pakshi_1879_local_solar_context_2026_07_20", "fixture_path": "pancha_pakshi_1879_local_solar_context_2026_07_20.json", "fixture_sha256": "de8e40c161a327695702b9b152f89da8e848f32aafb4d0b155176d28381c9fd2", "hash_canonicalization": "UTF-8 text with CRLF and CR normalized to LF" }, "profile_binding": { "path": "moira/data/pancha_pakshi_agastya_madras_1879_akshara_fixed_clock.json", "sha256": "876e4cc7cc5d894f5e558ac733913e84a8b779f72c77661e89d448fd1e05ced4", "profile_content_changed": false, "admission_status": "source_scoped_public", "default_selection_allowed": false }, "manifest_transition": { "prior_manifest_sha256": "4587306ded9b5760940e7f80c45b6c40132590473e910ea9350c9d7fa141a2ee", "current_manifest_sha256": "766f92650bc050f4c88670f8fd6307036ff49a97e812c9efc9a428fb76e53e17", "hash_canonicalization": "UTF-8 text with CRLF and CR normalized to LF", "prior_capabilities": [ "aksara_identity", "nominal_schedule", "directed_relationships", "astronomical_context" ], "current_capabilities": [ "aksara_identity", "nominal_schedule", "directed_relationships", "astronomical_context", "fixed_clock_materialization" ], "added_capability": "fixed_clock_materialization", "profile_product_kind_changed": false, "profile_admission_status_changed": false }, "computational_object": { "engine_function": "pancha_pakshi_fixed_clock_materialization_at", "facade_method": "Moira.pancha_pakshi_fixed_clock_materialization", "rest_route": "POST /v1/pancha-pakshi/schedule/fixed-clock", "result_vessel": "PanchaPakshiFixedClockMaterialization", "policy_vessel": "PanchaPakshiFixedClockMaterializationPolicy", "policy": { "policy_id": "fixed_24_minute_nazhigai_from_local_solar_half_start_v1", "paksha_basis": "caller_supplied_source_label", "solar_context_basis": "topocentric_sunrise_to_next_sunrise", "day_anchor": "governing_topocentric_sunrise", "night_anchor": "governing_topocentric_sunset", "nazhigai_seconds": 1440, "half_span_nazhigai": 30, "half_span_seconds": 43200, "offset_arithmetic_time_scale": "reader_bound_tt", "published_endpoint_time_scale": "ut1", "interval_ownership": "half_open", "solar_end_clipping": "none", "topology_metric": "fixed_end_jd_tt_minus_solar_end_jd_tt", "topology_coalescence_seconds": 0.0001, "current_cell_status": "not_performed", "solar_proportional_scaling_status": "not_performed" }, "provenance_routing_status": "fixed_clock_materialization_performed_paksha_caller_supplied_no_current_cell", "engine_inputs": [ "explicit_profile_id", "jd_ut1", "latitude", "longitude", "caller_supplied_paksha" ], "facade_time_input": "timezone-aware datetime normalized to UTC through the established civil-anchor to UT1 adapter", "rest_time_input": "timezone-aware datetime normalized to UTC through the established civil-anchor to UT1 adapter", "derived_values": [ "governing_local_solar_context", "source_owned_nominal_schedule", "local_solar_half_start_anchor_jd_ut1", "materialized_half_open_cell_intervals_jd_ut1", "fixed_end_jd_ut1", "solar_end_jd_ut1", "signed_fixed_end_minus_solar_end_seconds_tt", "fixed_end_topology" ] }, "assembly_doctrine": { "source_layer": "The unchanged 1879 source-scoped profile governs the exact nominal thirty-nazhigai half, samams, cell sequence, and rational activity offsets.", "astronomical_layer": "The admitted Stage 2A local-solar context governs the containing solar half, weekday, schedule selection, sunrise anchor, sunset anchor, and solar half end.", "clock_layer": "One nazhigai is the modern explicitly sourced fixed unit of 1440 SI seconds. Exact rational nominal offsets are added to the reader-bound TT representation of the selected half start, and each endpoint is projected back to UT1.", "anchor_rule": "Day starts at the governing topocentric sunrise; night starts at the governing topocentric sunset.", "boundary_rule": "Every materialized cell is half-open; an exact cell endpoint belongs to the next cell, while the fixed half endpoint is excluded.", "fixed_end_rule": "Thirty nazhigai always materializes as 43200 SI seconds on reader-bound TT.", "solar_end_rule": "The materialized fixed end is never clipped or stretched to the astronomical sunset or next sunrise.", "topology_rule": "Classify the signed fixed-end minus solar-end difference as before, coalescent, or after, with absolute differences no greater than 0.0001 second treated as coalescent.", "current_cell_rule": "Do not select or claim a current schedule cell; a requested instant may lie outside the fixed span even while it remains inside the governing solar half.", "polar_policy": "Fail explicitly when lawful sunrise and sunset bounds do not exist." }, "authority_and_provenance": { "policy_origin": "modern_moira_composition_policy", "historical_source_attestation": "The named 1879 witness attests only the exact nominal thirty-nazhigai schedule and offsets used by the unchanged profile; the SI-second projection and astronomical composition are not attributed to it.", "historical_source_binding": { "witness_id": "dli.rmrl.000451_images", "profile_sha256": "876e4cc7cc5d894f5e558ac733913e84a8b779f72c77661e89d448fd1e05ced4", "temporal_locator_ids": [ "ia_n6" ], "duration_locator_ids": [ "ia_n6", "ia_n23", "ia_n28", "ia_n33" ], "evidence_role": "nominal schedule structure and exact rational offsets only" }, "nazhigai_unit_authority": { "authority": "University of Madras, Tamil Lexicon", "edition": "Madras, University of Madras, 1924-1936", "entry": "nazhigai (Tamil Lexicon headword U+0BA8 U+0BBE U+0BB4 U+0BBF U+0B95 U+0BC8)", "page": 2231, "url": "https://dsal.uchicago.edu/cgi-bin/app/tamil-lex_query.py?qs=%E0%AE%A8%E0%AE%BE%E0%AE%B4%E0%AE%BF%E0%AE%95%E0%AF%88&searchhws=yes&matchtype=exact", "assertion": "one nazhigai is an Indian hour of 60 vinadi or 24 minutes", "evidence_role": "fixed unit conversion only" }, "tt_authority": { "authority": "International Earth Rotation and Reference Systems Service", "glossary_url": "https://www.iers.org/SharedDocs/Glossareintraege/EN/T/tt", "technical_note": "IERS Technical Note No. 29", "technical_note_url": "https://www.iers.org/SharedDocs/Publikationen/EN/IERS/Publications/tn/TechnNote29/tn29.pdf?__blob=publicationFile&v=1", "technical_note_page": 9, "assertion": "TT is conventionally realized as TAI plus 32.184 seconds and its unit agrees with the SI second on the geoid", "evidence_role": "SI-second time-coordinate basis for fixed offset addition" }, "solar_anchor_authority": { "prior_decision_id": "pancha_pakshi_1879_local_solar_context_2026_07_20", "prior_decision_sha256": "de8e40c161a327695702b9b152f89da8e848f32aafb4d0b155176d28381c9fd2", "authority": "JPL Horizons observer tables", "fixture_path": "tests/fixtures/horizons_rise_set_reference.json", "fixture_sha256": "d850ac06164ef041e3f9c8e80aaeea7cf23adfd644f6259b73e500510b6d5255", "case_id": "sun-new-york-equinox", "tolerance_seconds": 2.0, "evidence_role": "topocentric sunrise and sunset anchor validation only" }, "external_pancha_pakshi_current_cell_oracle_status": "none" }, "validation_evidence": { "source_semantics": "exact rational invariant checks against the unchanged profile and its named source locators", "unit_semantics": "authority binding to the University of Madras Tamil Lexicon entry", "time_scale_semantics": "authority binding to the IERS TT convention and SI-second unit", "solar_anchor_semantics": "the frozen Stage 2A JPL Horizons comparison remains the authority check for the astronomical anchor only", "materialization_semantics": "exact rational offset, contiguity, half-open ownership, no-clipping, topology-sign, and round-trip invariants", "topology_coalescence_seconds": 0.0001, "topology_coalescence_evidence_class": "numerical policy, not astronomical or historical accuracy", "external_current_cell_validation": "not_applicable_because_no_current_cell_is_claimed" }, "public_claim": "Given an explicit profile, UT1 instant, location, and caller-supplied Purva or Amara source label, resolve the governing local-solar half and nominal schedule, anchor it at that half's sunrise or sunset, add its exact nazhigai offsets as fixed SI seconds on reader-bound TT, project all half-open endpoints to UT1, and expose the unclipped fixed-end topology against the astronomical half end.", "public_nonclaims": [ "a current Pancha Pakshi activity or schedule cell", "clipping or stretching the fixed schedule to the astronomical half", "solar-proportional or seasonal scaling of nominal durations", "historical source attestation for the modern SI-second and astronomical composition policy", "astronomical or lunar inference of Purva or Amara paksha", "natal Moon or nakshatra identity", "vinadi or finer subdivisions", "Padu, Bharana, or Adhikara birds", "condition evaluation, scoring, or electional window search", "cross-witness normalization or corroborated public status", "a universal or default Pancha Pakshi canon" ], "artifact_distribution_boundary": { "source_artifact_policy_changed": false, "profile_source_artifact_added": false, "policy_effect": "The standing non-bundling architecture remains unchanged; the added authorities are cited by bibliographic identity and URL, and no archival scan, copied source expression, or third-party artifact is distributed." } }