Pith Number

pith:SFPZRNLJ

pith:2009:SFPZRNLJ3SXIQFZPE3UA3Q65PD

not attested not anchored not stored refs pending

Modelling hybrid Beta Cephei/SPB pulsations: Gamma Pegasi

2) ((1) Nicolaus Copernicus Astronomical Center, (2) Institute of Astronomy, A.A. Pamyatnykh (1, Moscow, Poland, Russia), Russian Academy of Science, T. Zdravkov (1), Warsaw

arxiv:0909.4643 v1 · 2009-09-25 · 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{SFPZRNLJ3SXIQFZPE3UA3Q65PD}

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	2026-05-18T02:34:27.644324Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

915f98b569dcae88172f26e80dc3dd78f8e531c2a99e5e7b379ae01abe79d17e

Aliases

arxiv: 0909.4643 · arxiv_version: 0909.4643v1 · doi: 10.48550/arxiv.0909.4643 · pith_short_12: SFPZRNLJ3SXI · pith_short_16: SFPZRNLJ3SXIQFZP · pith_short_8: SFPZRNLJ

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/SFPZRNLJ3SXIQFZPE3UA3Q65PD \
  | 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: 915f98b569dcae88172f26e80dc3dd78f8e531c2a99e5e7b379ae01abe79d17e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e5da7fbb43e061f8a9d504bb1b8eb32608c375d1792ab4e1dfa3013f5324276",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-25T09:23:08Z",
    "title_canon_sha256": "8b3d5b1aba6e9e5321b4269df022bc842c70899bfc591584f5a00bb994f8cfd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.4643",
    "kind": "arxiv",
    "version": 1
  }
}