the data
· des-sn5yr
DES-SN5YR supernova Hubble diagram
expansion
DES Collaboration
2 files ·
6.1 MB
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 the sample-swap robustness test: the evolving-DE preference rises from 2.4 sigma (Pantheon+) to 2.8 sigma with DES-SN5YR.
Files — sizes and hashes computed from disk, not quoted
| file | size | sha-256 | |
|---|---|---|---|
| DES-Dovekie_HD.csv | 144.5 KB | 2f57019d783eaa97… | download |
| STAT+SYS.npz | 6.0 MB | ffd3124b32148b13… | download |
verify: shasum -a 256 <file> — must match the hash above or discard the file.
Used by claims
USR-2026-0003
The evolving-DE preference appears in all three SN compilations refit through one pipeline:...
PROVISIONAL
Provenance
NO UPSTREAM URL ON RECORD — nothing sourceable was found on disk, and we don't invent links. See notes.
- citation
- arXiv:2401.02929
- license / terms
- DES public data release; no fetch script or URL found on disk for these two files.
- local directory
- /Users/davidthompson/Desktop/Dark Energy/engine/data/external/DES_SN5YR
- notes
- The 'Dovekie' tag on the Hubble diagram indicates a post-2024 recalibrated version of the DES-SN5YR release; the arXiv citation is grounded in the engine's inline DES_SN5YR_BINNED table reference.
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.