Pith Number

pith:5X6T3CO4

pith:2003:5X6T3CO4GN3LZAE46QXFAVFBIM

not attested not anchored not stored refs pending

Quantitative Spectroscopy of O Stars at Low Metallicity. O Dwarfs in NGC 346

C. J. Evans, D. J. Hillier, D. J. Lennon, I. Hubeny, J.-C. Bouret, L. J. Smith, S. R. Heap, T. Lanz

arxiv:astro-ph/0301454 v2 · 2003-01-22 · 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{5X6T3CO4GN3LZAE46QXFAVFBIM}

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	2026-05-18T04:23:01.020739Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

edfd3d89dc3376bc809cf42e5054a14310e4ca5cbbe6bafbc83fec5df719f52b

Aliases

arxiv: astro-ph/0301454 · arxiv_version: astro-ph/0301454v2 · doi: 10.48550/arxiv.astro-ph/0301454 · pith_short_12: 5X6T3CO4GN3L · pith_short_16: 5X6T3CO4GN3LZAE4 · pith_short_8: 5X6T3CO4

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/5X6T3CO4GN3LZAE46QXFAVFBIM \
  | 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: edfd3d89dc3376bc809cf42e5054a14310e4ca5cbbe6bafbc83fec5df719f52b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f90a30ad3383a723eab63905be78230863296b1d813245f0fbacf29a3628c7a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-01-22T19:12:25Z",
    "title_canon_sha256": "b45ef2f6d94fff5cf77c3ee3b4affb84c0857f6a92a5eb41b6a0793f73bf08b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0301454",
    "kind": "arxiv",
    "version": 2
  }
}