Pith Number

pith:QDI4VXUM

pith:2011:QDI4VXUMSRMOICWGSKRGVPDHBS

not attested not anchored not stored refs pending

CoRoT observations of O stars: diverse origins of variability

A. Baglin, A. Noels, C. Aerts, C. Catala, E. Gosset, E. Michel, E. Poretti, F. Baudin, F. Schiller, G. Rauw, J. Cuypers, J. Montalban, K. Smolders, L. Mahy, M. Auvergne, M. Briquet, M.F. Nieva, M. Godart, M. Hareter, M. Rainer, M. Vuckovic, N. Przybilla, P. Degroote, P. Ventura, R. Blomme, R. Oreiro, R. Samadi, S. Simon-Diaz, T. Morel

arxiv:1109.1999 v1 · 2011-09-09 · astro-ph.SR · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QDI4VXUMSRMOICWGSKRGVPDHBS}

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	2026-05-18T04:13:46.393022Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80d1cade8c9458e40ac692a26abc670cb4d0c2278e6449b6c4c9152ff87a4b61

Aliases

arxiv: 1109.1999 · arxiv_version: 1109.1999v1 · doi: 10.48550/arxiv.1109.1999 · pith_short_12: QDI4VXUMSRMO · pith_short_16: QDI4VXUMSRMOICWG · pith_short_8: QDI4VXUM

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/QDI4VXUMSRMOICWGSKRGVPDHBS \
  | 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: 80d1cade8c9458e40ac692a26abc670cb4d0c2278e6449b6c4c9152ff87a4b61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7bebfe39eb0d518f602480feb75d59460bf585a9b2eaf3676c5364500b6c504",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-09-09T13:14:27Z",
    "title_canon_sha256": "922e621ed801812fbf2c8a03ae1df1cf0174bc54e7bc105b2be1bc22d2a12906"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1999",
    "kind": "arxiv",
    "version": 1
  }
}