{"query": "The year - one orbit and the leap rule", "count": 20, "results": [{"id": "card_cal_the_year", "title": "The year - one orbit and the leap rule", "shelf": "codex", "surface": "secular", "snippet": "A tropical year is 365.2422 days; the Gregorian leap rule averages 365.2425 (sealed), 97 leap days per 400 years - number chasing the sun.", "authority_tier": "engine_derived", "source": "Narrow Highway — cal", "readable": false, "generated": false}, {"id": "card_theory_calendar_theory", "title": "Calendar theory (Gregorian reform, leap rules)", "shelf": "theories", "surface": "secular", "snippet": "Calendar theory (Gregorian reform, leap rules) — an engine domain that can touch it: calendar_time. Calibration: seals — leap rules and date arithmetic compute exactly. The tropical year is about 365.", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_span_edcf26c30591", "title": "A  NOTABLE  UTTERANCE", "shelf": "practical", "surface": "secular", "snippet": "213 \n\n\nhave  conquered  you.  We  are  sorry,  last  year,  that  you  raised \nthe  tomahawk  against  us ;  but  we  believe  you  did  not  know \nus  then  as  you  do  now. \nWe  think  that  in  ti", "authority_tier": "primary_pd", "source": "Outdoor life and Indian stories : making open air life attractive to young Americans by telling them all about woodcraft", "readable": true, "generated": false}, {"id": "card_n_5c477e45f8d5", "title": "The calendar in the text — twelve moons, an anchorless week", "shelf": "science", "surface": "secular", "snippet": "Sealed: the year holds 12.368 lunar months — twelve tribes, twelve months, and the\n0.368 remainder is why every lunar calendar limps without leap-months. Sealed as an honest\nNEGATIVE: a lunar quarter ", "authority_tier": "engine_derived", "source": "Concordance assay — 2026-07-09", "readable": false, "generated": false}, {"id": "card_floor_the_calendar", "title": "The calendar — keeping time by sun and number", "shelf": "codex", "surface": "secular", "snippet": "The day is one rotation (86400 s), the year one orbit (~365.2422 days); the Gregorian calendar approximates it as 365.2425 by a leap rule. Pillars rest on astronomy (the orbit and rotation) and metrol", "authority_tier": "engine_derived", "source": "Narrow Highway — cal", "readable": false, "generated": false}, {"id": "card_domchk_calendar_time_claimed_leap", "title": "Calendar Time: leap", "shelf": "calendar_time", "surface": "secular", "snippet": "A worked check in calendar time: leap.\n\nGIVEN\n  year = 2024\n\nCLAIMED\n  claimed_leap = True\n\nTHE ENGINE'S VERDICT\n  calendar_time.leap_year: CONFIRMED — 2024 leap year = True (matches claim)\n\nAND THE F", "authority_tier": "reference", "source": "The verifier's own documented relation, and a run this engine performed against it (deterministic; re-runnable with tools/domain_goldens.py)", "readable": false, "generated": false}, {"id": "card_v_e240ccc8da0f", "title": "December 25, 2023 was a Monday · 2024 is a leap year", "shelf": "calendar_time", "surface": "secular", "snippet": "Verdict: HOLDS.\n• calendar_time.day_of_week: 2023-12-25 is a monday (matches claim)\n• calendar_time.leap_year: 2024 leap year = True (matches claim)\nSealed and independently re-checkable: https://narr", "authority_tier": "engine", "source": "Verified by the engine — calendar_time", "readable": false, "generated": false}, {"id": "card_v_fc5a446f418f", "title": "2000 is a leap year (÷400) · 2000-01-01 was a Saturday", "shelf": "calendar_time", "surface": "secular", "snippet": "Verdict: HOLDS.\n• calendar_time.leap_year: 2000 leap year = True (matches claim)\n• calendar_time.day_of_week: 2000-01-01 is a saturday (matches claim)\nSealed and independently re-checkable: https://na", "authority_tier": "engine", "source": "Verified by the engine — calendar_time", "readable": false, "generated": false}, {"id": "card_seal_5f07861c7c3d0424cdeaf03ba0a243f59b2e2d0f61e38221f6e50e200c775a91", "title": "Receipt 5f07861c7c3d… — sealed: record", "shelf": "seals", "surface": "secular", "snippet": "{\n \"anchors\": [],\n \"axis_coords\": {\n  \"axis\": \"calendar_time\",\n  \"dimensions\": [\n   \"discreteness\",\n   \"time_sequence\"\n  ]\n },\n \"gate_results\": [\n  {\n   \"details\": {\n    \"broken_at\": null,\n    \"confir", "authority_tier": "engine_derived", "source": "Narrow Highway engine — sealed record", "readable": false, "generated": false}, {"id": "card_seal_e61074219f4e359837dae1e0427a3729442803761399765f7ced17af781067f8", "title": "Receipt e61074219f4e… — sealed: record", "shelf": "seals", "surface": "secular", "snippet": "{\n \"anchors\": [],\n \"axis_coords\": {\n  \"axis\": \"calendar_time\",\n  \"dimensions\": [\n   \"discreteness\",\n   \"time_sequence\"\n  ]\n },\n \"gate_results\": [\n  {\n   \"details\": {\n    \"broken_at\": null,\n    \"confir", "authority_tier": "engine_derived", "source": "Narrow Highway engine — sealed record", "readable": false, "generated": false}, {"id": "card_src_etym_vault", "title": "vault", "shelf": "etymology", "surface": "secular", "snippet": "vault: etymology (Webster 1913) — n.: [OE. voute, OF. voute, volte, F. voûte, LL. volta, for voluta, volutio, fr. L. volvere, volutum, to roll, to turn about. See Voluble, and cf. Vault a leap, Volt a", "authority_tier": "reference", "source": "Webster's Revised Unabridged Dictionary (1913), Project Gutenberg eBook #29765 — public domain", "readable": true, "generated": false}, {"id": "card_src_word_leap_year", "title": "leap year", "shelf": "dictionary", "surface": "secular", "snippet": "leap year: (noun) a calendar year with an extra day added in February — syn: intercalary year, 366 days, bissextile year", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "readable": false, "generated": false}, {"id": "card_works_leap_year", "title": "The calendar's rules: a leap year and a weekday", "shelf": "the-works", "surface": "secular", "snippet": "The Gregorian rule makes 2000 a leap year (divisible by 400) where 1900 was not; and the same calendar fixes that 1 January 2000 fell on a Saturday. Rules, not lore.  Worked & sealed by the engine — 2", "authority_tier": "verified", "source": "The Works — worked & sealed", "readable": false, "generated": false}, {"id": "card_v_cf136f989899", "title": "at 9% it doubles in 8 years · 2024 is a leap year", "shelf": "economics", "surface": "secular", "snippet": "Verdict: HOLDS.\n• economics.rule_of_72: 72 / 9.0% = 8.00 years (matches claim)\n• calendar_time.leap_year: 2024 leap year = True (matches claim)\nSealed and independently re-checkable: https://narrowhig", "authority_tier": "engine", "source": "Verified by the engine — economics", "readable": false, "generated": false}, {"id": "card_v_58f461d392e8", "title": "at 7% gives a doubling time of 10.3 years · 2024 is a leap year", "shelf": "economics", "surface": "secular", "snippet": "Verdict: HOLDS.\n• economics.rule_of_72: 72 / 7.0% = 10.29 years (matches claim)\n• calendar_time.leap_year: 2024 leap year = True (matches claim)\nSealed and independently re-checkable: https://narrowhi", "authority_tier": "engine", "source": "Verified by the engine — economics", "readable": false, "generated": false}, {"id": "card_v_4f2ecf5bc1c1", "title": "8% annual return the reserve doubles in about 9 years · 2024 was a leap year", "shelf": "economics", "surface": "secular", "snippet": "Verdict: HOLDS.\n• economics.rule_of_72: 72 / 8.0% = 9.00 years (matches claim)\n• calendar_time.leap_year: 2024 leap year = True (matches claim)\nSealed and independently re-checkable: https://narrowhig", "authority_tier": "engine", "source": "Verified by the engine — economics", "readable": false, "generated": false}, {"id": "card_v_4c5b121db17c", "title": "at 8% gives a doubling time of 8 years · at 6% gives a doubling time of 14.4 yea", "shelf": "economics", "surface": "secular", "snippet": "Verdict: BROKEN.\n• economics.rule_of_72: doubling time = 9.00 years, claimed 8.0\n• economics.rule_of_72: doubling time = 12.00 years, claimed 14.4\n• calendar_time.leap_year: 2025 leap year = False, cl", "authority_tier": "engine", "source": "Verified by the engine — economics", "readable": false, "generated": false}, {"id": "card_src_book_15572", "title": "A Leap in the Dark A Criticism of the Principles of Home Rule as Illustrated by the Bill of 1893 — A. V. (Albert Venn) Dicey", "shelf": "gutenberg", "surface": "secular", "snippet": "A Leap in the Dark A Criticism of the Principles of Home Rule as Illustrated by the Bill of 1893, by A. V. (Albert Venn) Dicey. Subjects: Home rule -- Ireland. Read the full text (public domain): http", "authority_tier": "reference", "source": "Project Gutenberg (public domain)", "readable": true, "generated": false}, {"id": "card_calc_v_calendar_time_leap_year", "title": "Leap year", "shelf": "calculations", "surface": "secular", "snippet": "Leap year — calendar_time. Formula: year mod 4, not 100, unless 400. Canonical FORM: cyclic (x mod n (a cycle)) — engine verifier calendar_time.leap_year — the deterministic check the concordance runs", "authority_tier": "reference", "source": "The Calculation Map — every calculation, mapped by form", "readable": false, "generated": false}, {"id": "card_src_word_bissextile_year", "title": "bissextile year", "shelf": "dictionary", "surface": "secular", "snippet": "bissextile year: (noun) a calendar year with an extra day added in February — syn: leap year, intercalary year, 366 days", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "readable": false, "generated": false}], "house": {"door": "FIND", "kind": "cards", "trail": "results", "seal": null, "next_step": {"do": "open the top card", "door": "FIND", "tool": "card_get", "params": {"id": "card_cal_the_year"}}, "ends": "a verdict or a card · the trail · a seal · one next step"}}