Pith Number

pith:ZZGQ3IQE

pith:2025:ZZGQ3IQECPV4VL4WIEUHWVLPNG

not attested not anchored not stored refs pending

Period-Luminosity Relations for Galactic Type II Cepheids in the Sloan bands

B. Zgirski, D. Graczyk, G. Hajdu, G. Pietrzynski, M. Gorski, P. Karczmarek, P. Wielgorski, R. Smolec, W. Gieren, W. Narloch

arxiv:2503.10532 v2 · 2025-03-13 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZZGQ3IQECPV4VL4WIEUHWVLPNG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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.

Receipt and verification

First computed	2026-07-05T10:59:07.259445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce4d0da20413ebcaaf9641287b556f69b75183178cc85679045364a9e9b70b39

Aliases

arxiv: 2503.10532 · arxiv_version: 2503.10532v2 · doi: 10.48550/arxiv.2503.10532 · pith_short_12: ZZGQ3IQECPV4 · pith_short_16: ZZGQ3IQECPV4VL4W · pith_short_8: ZZGQ3IQE

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/ZZGQ3IQECPV4VL4WIEUHWVLPNG \
  | 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: ce4d0da20413ebcaaf9641287b556f69b75183178cc85679045364a9e9b70b39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "693919cf1a4fb76ebbc37886c244668d2f3885e695b5801d35604bd742b9cdd9",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-03-13T16:39:44Z",
    "title_canon_sha256": "8955ba0a71658ccf5343c05a5eb9e4dfcb27b63c68f32f6cfde284415ce0b07d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.10532",
    "kind": "arxiv",
    "version": 2
  }
}