Pith Number

pith:DUHE345W

pith:2025:DUHE345WVUWDGUG4QPVS2OT2CE

not attested not anchored not stored refs pending

Chicago-Carnegie Hubble Program (CCHP) A Multi-Wavelength Search for the Effects of Metallicity on the Cepheid Distance Scale. Part II: Theoretical Models and Synthetic Spectra

Barry F. Madore, Kayla Owens, Wendy L. Freedman

arxiv:2506.01188 v1 · 2025-06-01 · astro-ph.GA · astro-ph.CO · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DUHE345WVUWDGUG4QPVS2OT2CE}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Chicago-Carnegie Hubble Program (CCHP) A Multi-Wavelength Search for the Effects of Metallicity on the Cepheid Distance Scale. Part II: Theoretical Models and Synthetic Spectra

Receipt and verification

First computed	2026-07-05T11:14:10.053861Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d0e4df3b6ad2c3350dc83eb2d3a7a1117e2ea40fc042ca3d10abcdc99ad4e85

Aliases

arxiv: 2506.01188 · arxiv_version: 2506.01188v1 · doi: 10.48550/arxiv.2506.01188 · pith_short_12: DUHE345WVUWD · pith_short_16: DUHE345WVUWDGUG4 · pith_short_8: DUHE345W

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/DUHE345WVUWDGUG4QPVS2OT2CE \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 1d0e4df3b6ad2c3350dc83eb2d3a7a1117e2ea40fc042ca3d10abcdc99ad4e85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a708c5f58aa0b1b737a9bc83939aa98f5701ae440aea1a56d281f024acf3a484",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-06-01T21:51:56Z",
    "title_canon_sha256": "e10b40a75d4c18624ee213ee37e2ca43df739b00d1470c04d7bd46b1fdac1347"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.01188",
    "kind": "arxiv",
    "version": 1
  }
}