Pith Number

pith:CX5NQSRA

pith:2004:CX5NQSRAJM4WIXR6Q4QIIOBV5W

not attested not anchored not stored refs pending

Chemical composition of UV-bright star ZNG 4 in the globular cluster M13

H. Izumiura, M. Parthasarathy, S. Ambika, T. Fujii, W. Aoki, Y. Ita, Y. Nakada

arxiv:astro-ph/0402305 v1 · 2004-02-12 · 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{CX5NQSRAJM4WIXR6Q4QIIOBV5W}

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	2026-07-04T16:43:01.793126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15fad84a204b39645e3e8720843835edb05fed5fd8455e51bd95d12730e6b12a

Aliases

arxiv: astro-ph/0402305 · arxiv_version: astro-ph/0402305v1 · doi: 10.48550/arxiv.astro-ph/0402305 · pith_short_12: CX5NQSRAJM4W · pith_short_16: CX5NQSRAJM4WIXR6 · pith_short_8: CX5NQSRA

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/CX5NQSRAJM4WIXR6Q4QIIOBV5W \
  | 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: 15fad84a204b39645e3e8720843835edb05fed5fd8455e51bd95d12730e6b12a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63a541c12b3cc723d15c449f49382d0165d2d62d1edbc333fc441fe0229dea2e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-02-12T19:07:57Z",
    "title_canon_sha256": "71611e4b2a87bfbec3c24ddd046001a0e0d498e49c531acc328d299d01a42c7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0402305",
    "kind": "arxiv",
    "version": 1
  }
}