The Data
Every byte this program runs on — public, hashed, sourced. Each dataset below is catalogued from disk: sizes and SHA-256 checksums are computed, not quoted. If a file can't be traced to an upstream source, the catalog says so instead of pretending.
DESI DR2 BAO distance measurements
13 BAO distance ratios (DV/rs, DM/rs, DH/rs) at 7 effective redshifts from 14 million DESI galaxies and quasars (3 years of data), plus the full 13x13 covariance. This is the...
Pantheon+ / SH0ES supernova compilation
The full Pantheon+ Type Ia supernova compilation (1701 light curves) with SH0ES Cepheid-host calibrators, plus the 1701x1701 STAT+SYS covariance matrix. Used for every...
DES-SN5YR supernova Hubble diagram
Dark Energy Survey 5-year photometric SN Ia Hubble diagram (DES-Dovekie_HD.csv) with the stat+sys covariance in NumPy .npz form. Serves as the second, independent SN sample in...
Union3 / UNITY1.5 compressed SN distances
Union3 compressed distance moduli from the UNITY1.5 Bayesian framework: 22 spline-node bins with covariance and inverse covariance, plus the original release FITS...
Auxiliary probes: FRB, GW sirens, QSO, SZ clusters, time-delay lenses, weak lensing
Six small secondary-probe tables kept under engine/data/external: 92 localized FRBs (Wang 2025 paper source + machine-readable catalog), GW standard sirens (GW170817 + GWTC-3...
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...