Pith Number

pith:JJRPGDNW

pith:2012:JJRPGDNWC67QOTLPMQT55CUIZG

not attested not anchored not stored refs pending

A primordial star in the heart of the Lion

(10) Univ. de Nice Sophia Antipolis, (11) INAF - Osservatorio Astrofisico di Arcetri), 2, 2), (2) GEPI - Obs. de Paris, 3), (3) ESO - Santiago, 4), (4) Univ. de Picardie Jules Verne, (5) INAF - Osservatorio Astronomico di Padova, (6) Leibniz Institut f\"ur Astrophysik Potsdam, (7) Institute of Astronomy, (8) INAF - Osservatorio Astronomico di Trieste, (9) LUPM - Univ. Montpellier 2, B. Plez (9), CNRS, E. Caffau (1, F. Hammer (2), F. Spite (2), H.-G. Ludwig (1, Lab. Cassiop\'ee, L. Mashonkina (7), L. Monaco (3), L. Sbordone (1, M. Spite (2), M. Steffen (6), OCA, P. Bonifacio (2, P. Fran\c{c}ois (2, P. Molaro (8), R. Cayrel (2), Russian Academy of Sciences, S. Randich (11)((1) ZAH-LSW Heidelberg, S. Zaggia (5), Univ. Paris Diderot, V. Hill (10)

arxiv:1203.2607 v1 · 2012-03-12 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JJRPGDNWC67QOTLPMQT55CUIZG}

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	2026-05-18T01:58:09.816638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a62f30db617bf074d6f6427de8a88c9b9d2415c7205ecf20d7d3778d2e7dda8

Aliases

arxiv: 1203.2607 · arxiv_version: 1203.2607v1 · doi: 10.48550/arxiv.1203.2607 · pith_short_12: JJRPGDNWC67Q · pith_short_16: JJRPGDNWC67QOTLP · pith_short_8: JJRPGDNW

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/JJRPGDNWC67QOTLPMQT55CUIZG \
  | 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: 4a62f30db617bf074d6f6427de8a88c9b9d2415c7205ecf20d7d3778d2e7dda8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc619c08772da4631da972920aa55c7d7edf50a005ad46b5cca4dfb1b84b30a5",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-03-12T20:00:00Z",
    "title_canon_sha256": "b5de15d2d2e96aaf1b99a5b38e900871ba5d2061ade5f13a1cc82ea9440187fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.2607",
    "kind": "arxiv",
    "version": 1
  }
}