Pith Number

pith:QVLCTA5V

pith:2005:QVLCTA5VU7CS3CBSZP6GLCCZ4A

not attested not anchored not stored refs pending

A study of the B and Be star population in the field of the LMC open cluster NGC2004 with VLT-FLAMES

Anne-Marie Hubert (GEPI), Christophe Martayan (GEPI), Coralie Neiner (GEPI), Jean Zorec, Juan Fabregat, Michele Floquet (GEPI), Philippe Stee, Yves Fremat

arxiv:astro-ph/0509339 v1 · 2005-09-13 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QVLCTA5VU7CS3CBSZP6GLCCZ4A}

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	2026-05-18T02:40:25.552475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85562983b5a7c52d8832cbfc658859e02f6773c473862ae9758a73e6c0a72bbd

Aliases

arxiv: astro-ph/0509339 · arxiv_version: astro-ph/0509339v1 · doi: 10.48550/arxiv.astro-ph/0509339 · pith_short_12: QVLCTA5VU7CS · pith_short_16: QVLCTA5VU7CS3CBS · pith_short_8: QVLCTA5V

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/QVLCTA5VU7CS3CBSZP6GLCCZ4A \
  | 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: 85562983b5a7c52d8832cbfc658859e02f6773c473862ae9758a73e6c0a72bbd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "057782163b26f6f41541154ced0420ee2f3666055527d7c257bdd88dfeb30a08",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-09-13T15:11:23Z",
    "title_canon_sha256": "3f4d248dcfabe64e8da41d30ec17126428c841926c2aa99c518c259b6be1c4c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0509339",
    "kind": "arxiv",
    "version": 1
  }
}