Pith Number

pith:CQR2PKAE

pith:2009:CQR2PKAESQ3A4VBOHEFMQV2GHH

not attested not anchored not stored refs pending

The tip of the iceberg: the frequency content of the Delta Sct star HD 50844 from CoRoT space photometry

A. Baglin, A. Moya, C. Catala, C. Suarez, E. Michel, E. Plachy, E. Poretti, E. Rodriguez, F. Baudin, K. Uytterhoeven, L. Mantegazza, M. Alvarez, M. Auvergne, M. Paparo, M. Rainer, P. Amado, P. Mathias, P. Papics, R. Garrido, R. Samadi, S. Martin-Ruiz, W. Zima

arxiv:0910.4079 v1 · 2009-10-21 · 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{CQR2PKAESQ3A4VBOHEFMQV2GHH}

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	2026-05-18T02:11:13.313356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1423a7a80494360e542e390ac8574639d21a752fd20a0838aa73751502802684

Aliases

arxiv: 0910.4079 · arxiv_version: 0910.4079v1 · doi: 10.48550/arxiv.0910.4079 · pith_short_12: CQR2PKAESQ3A · pith_short_16: CQR2PKAESQ3A4VBO · pith_short_8: CQR2PKAE

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/CQR2PKAESQ3A4VBOHEFMQV2GHH \
  | 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: 1423a7a80494360e542e390ac8574639d21a752fd20a0838aa73751502802684

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "921c3b9f8f3792ba13269abb5b4957c304d9b2f1a50e40742fd1095e710ebee5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-10-21T13:10:53Z",
    "title_canon_sha256": "c50f4d76fa2751156a6ffc40c2ccf4a42363ea1bd868c2603726a2a8cda7b45b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4079",
    "kind": "arxiv",
    "version": 1
  }
}