Pith Number

pith:J7MUEDKD

pith:2001:J7MUEDKDO5WZCALHEYANTLCPCO

not attested not anchored not stored refs pending

Spectroscopic Signatures of Convection in the Spectrum of Procyon. Fundamental Parameters and Iron Abundance

(2) Uppsala Astronomical Observatory, (3) Instituto de Astrofisica de Canarias), Carlos Allende Prieto (1), David L. Lambert (1) ((1) University of Texas, Martin Asplund (2), Ramon J. Garcia Lopez (3)

arxiv:astro-ph/0111055 v1 · 2001-11-02 · 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{J7MUEDKDO5WZCALHEYANTLCPCO}

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	2026-05-18T01:07:45.337908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fd9420d43776d9101672600d9ac4f13bac8175245f71a8299b95f5fb4c495c5

Aliases

arxiv: astro-ph/0111055 · arxiv_version: astro-ph/0111055v1 · doi: 10.48550/arxiv.astro-ph/0111055 · pith_short_12: J7MUEDKDO5WZ · pith_short_16: J7MUEDKDO5WZCALH · pith_short_8: J7MUEDKD

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/J7MUEDKDO5WZCALHEYANTLCPCO \
  | 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: 4fd9420d43776d9101672600d9ac4f13bac8175245f71a8299b95f5fb4c495c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8687b976d193d810e4ffa1a00655400d38098c8a8d0029c3ee8524ff21e4b115",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-11-02T20:58:15Z",
    "title_canon_sha256": "277de48d8ba962b6036870194081683c798b858d9bda567455db39c74981a43a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0111055",
    "kind": "arxiv",
    "version": 1
  }
}