Pith Number

pith:U7BGE5PH

pith:2010:U7BGE5PHNUYS45UOMKBFBITDH6

not attested not anchored not stored refs pending

First Stars XIV. Sulfur abundances in extremely metal-poor (EMP) stars

Astronomy Group), B. Barbuy, B. Nordstrom (The Niels Bohr Institute, B. Plez (GRAAL), E. Caffau (GEPI, E. Depagne, F. Primas (ESO), F. Spite (GEPI), H.-G. Ludwig (ZAU), J. Andersen (The Niels Bohr Institute, Monique Spite (GEPI), P. Bonifacio (GEPI), P. Francois (GEPI), P. Molaro (INAF-OAT), R. Cayrel (GEPI), S. A. Korotin, S.M. Andrievsky (GEPI), T. C. Beers (MSU), V. Hill (CASSIOPEE), ZAU)

arxiv:1012.4358 v2 · 2010-12-20 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U7BGE5PHNUYS45UOMKBFBITDH6}

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	2026-05-18T02:04:21.923561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7c26275e76d312e768e628250a2633fbbd559e3d8f4204a12e24c1d442c5f4f

Aliases

arxiv: 1012.4358 · arxiv_version: 1012.4358v2 · doi: 10.48550/arxiv.1012.4358 · pith_short_12: U7BGE5PHNUYS · pith_short_16: U7BGE5PHNUYS45UO · pith_short_8: U7BGE5PH

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/U7BGE5PHNUYS45UOMKBFBITDH6 \
  | 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: a7c26275e76d312e768e628250a2633fbbd559e3d8f4204a12e24c1d442c5f4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e13ee081079b44e2df07930b19230b0b4bb8b15588c0540139f8492855e154df",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-12-20T15:31:16Z",
    "title_canon_sha256": "163f54be464dbe2d7ee1a97d2531e645b55ba0f401fee7a0426d463b566789d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.4358",
    "kind": "arxiv",
    "version": 2
  }
}