Pith Number

pith:VWDMA7VD

pith:2010:VWDMA7VDYD44QSXE7256DOEJ67

not attested not anchored not stored refs pending

EC 11481-2303 - A Peculiar Subdwarf OB Star Revisited

(2) Department of Physics, Astronomy, Astrophysics, Baltimore, Eberhard Karls University, Germany, Johns Hopkins University, J. W. Kruk (2) ((1) Institute for Astronomy, Kepler Center for Astro, K. Werner (1), Particle Physics, T. Rauch (1), Tuebingen, U.S.A.)

arxiv:1001.5115 v1 · 2010-01-28 · 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{VWDMA7VDYD44QSXE7256DOEJ67}

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	2026-05-18T02:09:28.925595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad86c07ea3c0f9c84ae4febbe1b889f7dd7da5893ad501cfa46b1a3d9fa7775a

Aliases

arxiv: 1001.5115 · arxiv_version: 1001.5115v1 · doi: 10.48550/arxiv.1001.5115 · pith_short_12: VWDMA7VDYD44 · pith_short_16: VWDMA7VDYD44QSXE · pith_short_8: VWDMA7VD

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/VWDMA7VDYD44QSXE7256DOEJ67 \
  | 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: ad86c07ea3c0f9c84ae4febbe1b889f7dd7da5893ad501cfa46b1a3d9fa7775a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a43aff8a1ef54027106e42f241765c2e591d186b4d9bea061ab802229f2003c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-01-28T07:39:05Z",
    "title_canon_sha256": "1fa10af7c2b949db93fb4165d6d3e8723406f92e5092b2a33e006edeabf6a0ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.5115",
    "kind": "arxiv",
    "version": 1
  }
}