Pith Number

pith:YV2UPAES

pith:2012:YV2UPAESIJSL4TIYQCRAMUBT2C

not attested not anchored not stored refs pending

Constructing a Cepheid Period p-Factor Relation from Static Model Stellar Atmospheres

Chow-Choong Ngeow, Hilding R. Neilson, John B. Lester

arxiv:1201.0802 v1 · 2012-01-04 · 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{YV2UPAESIJSL4TIYQCRAMUBT2C}

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	2026-05-18T04:05:16.256266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5754780924264be4d1880a2065033d089607d84597b81ff233ef1591782fc81

Aliases

arxiv: 1201.0802 · arxiv_version: 1201.0802v1 · doi: 10.48550/arxiv.1201.0802 · pith_short_12: YV2UPAESIJSL · pith_short_16: YV2UPAESIJSL4TIY · pith_short_8: YV2UPAES

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/YV2UPAESIJSL4TIYQCRAMUBT2C \
  | 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: c5754780924264be4d1880a2065033d089607d84597b81ff233ef1591782fc81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd0cb2530ee3515e7b2c38b4af75a61cded6fd2d9403d8d3a5a0a3603fd2b00e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-01-04T01:11:13Z",
    "title_canon_sha256": "fe26cddb5feefabff972e26075d9e2892fc79e34c8c3421aa2700a29120c6625"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.0802",
    "kind": "arxiv",
    "version": 1
  }
}