Pith Number

pith:LP3TTVVV

pith:2013:LP3TTVVVNKDTAPZQQLOWD2RZT5

not attested not anchored not stored refs pending

Classical Cepheids, what else?

2), (2) INAF--OAR, (3), 3), (3) ESO, (4) Department of Astronomy, (5) Sterrenkundig Instituut `Anton Pannekoek, Amsterdam, B. Lemasle (5), F. Primas, Garching bei M\"unchen, G. Bono (1, Germany, Italy, Japan, K. Genovali (1), L. Inno (1, Monte Porzio Catone, M. Romaniello (3) ((1) Dipartimento di Fisica, N. Matsunaga (4), Roma, School of Science, the Netherlands), The University of Tokyo, Tokyo, Universit\`a di Roma Tor Vergata, ' University of Amsterdam

arxiv:1301.3147 v1 · 2013-01-14 · 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{LP3TTVVVNKDTAPZQQLOWD2RZT5}

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	2026-05-18T01:52:12.390264Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5bf739d6b56a87303f3082dd61ea399f617a04ad04f1afca43ab1df9f7d214b5

Aliases

arxiv: 1301.3147 · arxiv_version: 1301.3147v1 · doi: 10.48550/arxiv.1301.3147 · pith_short_12: LP3TTVVVNKDT · pith_short_16: LP3TTVVVNKDTAPZQ · pith_short_8: LP3TTVVV

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/LP3TTVVVNKDTAPZQQLOWD2RZT5 \
  | 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: 5bf739d6b56a87303f3082dd61ea399f617a04ad04f1afca43ab1df9f7d214b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9241c296ae0fc87979a2ae44ea7a8eb8e6510f46fad418bc616353a567945ef7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-01-14T21:01:49Z",
    "title_canon_sha256": "353f4ad13d585ba860b3d6845447ccf921f65c542c73ebe11b9d2fdf2f7ed668"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.3147",
    "kind": "arxiv",
    "version": 1
  }
}