Pith Number

pith:QMZBLE75

pith:2004:QMZBLE756EJSXMKCM6P7QSSCPG

not attested not anchored not stored refs pending

The Indo-U.S. Library of Coude Feed Stellar Spectra

David J. Bell, Francisco Valdes, Harinder P. Singh, James A. Rose, Ranjan Gupta

arxiv:astro-ph/0402435 v1 · 2004-02-18 · 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{QMZBLE756EJSXMKCM6P7QSSCPG}

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	2026-05-18T04:19:41.596588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83321593fdf1132bb142679ff84a427986790f5398b4aaea218f0ae89cd40530

Aliases

arxiv: astro-ph/0402435 · arxiv_version: astro-ph/0402435v1 · doi: 10.48550/arxiv.astro-ph/0402435 · pith_short_12: QMZBLE756EJS · pith_short_16: QMZBLE756EJSXMKC · pith_short_8: QMZBLE75

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/QMZBLE756EJSXMKCM6P7QSSCPG \
  | 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: 83321593fdf1132bb142679ff84a427986790f5398b4aaea218f0ae89cd40530

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a78a1e34926edff9ad3d9d42891636bda1bed44cc4a54dc8de0808111662f72",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-02-18T15:00:22Z",
    "title_canon_sha256": "073ac65967606ab72d1b4c780a2f3d8cd0f008f6682942851ed77c08292ca3e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0402435",
    "kind": "arxiv",
    "version": 1
  }
}