Pith Number

pith:VFRGEGAS

pith:2010:VFRGEGASDKDH2C5T5MEXIXN7LT

not attested not anchored not stored refs pending

Period-Color and Amplitude-Color Relations in Classical Cepheid Variables - VI. New Challenges for Pulsation Models

A. James, C. Ngeow, I Musella, J. Halsey, M. Marconi, M. Turner, S. Kanbur, S. Magin

arxiv:1006.1821 v1 · 2010-06-09 · 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{VFRGEGASDKDH2C5T5MEXIXN7LT}

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	2026-05-18T02:06:55.502969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9626218121a867d0bb3eb09745dbf5ceed63d890b8df4534acc39bc2b1e6aad

Aliases

arxiv: 1006.1821 · arxiv_version: 1006.1821v1 · doi: 10.48550/arxiv.1006.1821 · pith_short_12: VFRGEGASDKDH · pith_short_16: VFRGEGASDKDH2C5T · pith_short_8: VFRGEGAS

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/VFRGEGASDKDH2C5T5MEXIXN7LT \
  | 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: a9626218121a867d0bb3eb09745dbf5ceed63d890b8df4534acc39bc2b1e6aad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c78e60f44eb7446954875a660eb6121602f22c339348a79a2aad6750ec3001df",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-06-09T14:41:37Z",
    "title_canon_sha256": "3c5bd58035da1a32a5b3179cf9f5c5e5e94f214d75527e978e15593617265e0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.1821",
    "kind": "arxiv",
    "version": 1
  }
}