The Feno program - Fenocosm record v53: the Phase-13 data layer: GFZ Kp + WDC Kyoto Dst, validated, and the pinned event streams (P-13.0)

Record v53 — the Phase-13 data layer: GFZ Kp + WDC Kyoto Dst, validated, and the pinned event streams (P-13.0). A sealed, append-only results record of the Feno program (repository arm: Fenocosm). Phase 13 opens a second forecast domain beside the flare line (records v25/v26/v36/v44, the Phase-12 arc), under the same sealed-record discipline: geomagnetic activity read through GFZ Potsdam's 3-hourly Kp index (1932 →) and WDC Kyoto's hourly Dst index (1957 →). This record is Stage 0 — the data layer. It seals no model. It fetches both feeds at run time (never committed; data/geomag/ is git-ignored), pins their endpoints, licenses, terms and checksums, validates every product, decides and pins the arc's two event streams with the rationale, and seals the descriptive statistics P-13.1 cites as its calibration landmarks. The one committed data product of the arc is written here: kp_storm_counts.csv, the derived daily storm-interval count series under the Kp feed's CC BY 4.0, the arc's offline anchor (the v44-trace idiom — P-13.2/P-13.3 and any consumer read one committed series; CI needs no network). Registered as PROMPTS-NEXT P-13.0 and pushed before the run; every pre-registered bearing is evaluated below and no kill clause fired. What is sealed, in one paragraph. The definitive Kp record covers 34,577 UT days (1932-01-01 → 2026-08-31, the last definitive day at the fetch) — 276,616 three-hour intervals with zero gaps, every value on the thirds scale, the service's meta.license field reading CC BY 4.0 (asserted), the flat-file product reproducing the JSON on every definitive interval and Bartels' ap ↔ Kp table holding on every interval. The Dst record covers 25,414 days (1957-01-01 → 2026-07-31; 609,936 hours, none missing, no sentinel) — final through 2020-12 and provisional from 2021-01-01, the real-time product excluded — with every one of the 197,952 hours that also appear in a per-month WDC file identical to the service's. The primary stream, the daily count of intervals at Kp ≥ 5−, has 19,157 storm intervals (6.93 % of all), a mean of 0.554 per day and P(storm day) = 0.215, with a storm-day autocorrelation of 0.378 at lag 1, 0.068 at lag 7 and 0.193 at lag 27 — the 27-day recurrence the arc's mandatory baseline is built on. The pinned onset rule gives 1,428 Dst storm onsets (20.4 per year; 37 in 1960, 1 in 2009), and the record's deepest hour is the published −589 nT of 1989-03-14T01Z (the landmark check). Regeneration bash python3 -m venv venv && venv/bin/pip install -r requirements-dev.txt ./verify.sh # the gate, incl. the P-13.0 offline smoke venv/bin/python -m fenocosm.geomag_fetch # -> data/geomag/ (network: GFZ + WDC Kyoto) venv/bin/python -m fenocosm.p111_geomag_data # -> out/v53/ (cache-first fetch + seal) venv/bin/python -m fenocosm.p111_geomag_data --smoke # the offline synthetic round trip venv/bin/python -m pytest tests/test_phase13.py -q Not data-free: the numbers need the two fetches. The GFZ definitive series is append-only (a later re-fetch with status=def returns ≥ the intervals frozen here, the first 276,616 identical); the WDC final/provisional products are re-cut by the WDC when a provisional month becomes final, so a later re-fetch may revise 2021 → values — the sealed SHA-256s say which cut this record read. Runtime: the fetch ~8 min (271 monthly GETs at 0.2 s spacing; the two bulk pulls take seconds); the seal ~1 min. Deposit note. All seven Feno-program repositories are private and remain private, so this deposit is standalone: it carries its own reproduction materials, its metadata contains no repository link, and sibling work is referenced by DOI rather than by repository path. Part of the Feno program. The source repository is private; the reproduction materials for this record are contained in the record itself.