Cosmic chronometer H(z) compilation (32 points)
32 differential-age H(z) measurements from the cosmic-chronometer literature (Stern+, Moresco+, Borghi+, Tomasetti+), stored as the CC_HZ inline Python table with per-point arXiv references. A CMB- and BAO-independent expansion probe available to the engine's fitters.
Files — sizes and hashes computed from disk, not quoted
| file | size | sha-256 | |
|---|---|---|---|
| cosmic_chronometers_Hz.csv | 1.2 KB | ffe1c98ade1a6d1d… | download |
Used by claims
No claim in the registry cites this dataset yet. It's catalogued anyway — unused data still gets hashed, and the day a claim leans on it, the provenance is already here.
Provenance
NO UPSTREAM URL ON RECORD — nothing sourceable was found on disk, and we don't invent links. See notes.
- citation
- arXiv:2201.07241
- license / terms
- Published values transcribed from the literature; per-point references embedded in the table (0907.3149, 1201.3609, 1201.6658, 1601.01701, 2105.14243, 2305.16387, 2201.07241).
- local directory
- data_ingest/cosmic_chronometers
- notes
- inline table; download = extract from source file. HONESTY WARNING: catalogs.py source is currently 0 bytes (truncated 2026-02-18); the tables survive only in the compiled bytecode __pycache__/catalogs.cpython-312.pyc (verified 2026-07 by loading that module directly). Reconstructing catalogs.py from the bytecode is an open task. No seeded registry claim lists cosmic chronometers among its datasets. [2026-07-12: re-pointed from bytecode to the real CSV; the full table also lives in the reconstructed engine/data/catalogs.py]
Serving, honestly
Downloads are served directly from this server today; an object-storage mirror (Tigris) is planned and flips on via config. The upstream archive is always the canonical copy — cite it, not us. Anything we serve must match its published hash.