Pith Number

pith:HDPIPSRS

pith:2009:HDPIPSRSO2OV5X6U6JVKQZN3E6

not attested not anchored not stored refs pending

First stars XII. Abundances in extremely metal-poor turnoff stars,and comparison with the giants

2, 2), 3), 4), 6), 9), B. Barbuy (10), B. Nordstrom (8), B. Plez (5, CSCE, E. Caffau (2), E. Depagne (7), F. Primas (12)((1) CIFIST (2) GEPI, F. Spite (2), H.-G Ludwig (1, J. Andersen (8, JINA, Michigan State University (12) European Southern Observatory), M. Spite (2), Observatoire de la Cote d'Azur (5) GRAAL, Observatoire de Paris (3) INAF- OA Trieste (4) Cassiopee, P. Bonifacio (1, P. Francois (2), P. Molaro (3), R. Cayrel (2), T.C. Beers (11), Universidade de Sao Paulo (11) Department of Physics & Astronomy, Universite de Montpellier (6) Department of Physics & Astronomy, Uppsala Astronomical Observatory (7) Las Cumbres Observatory (8) The Niels Bohr Institute (9) Nordic Optical Telescope (10) IAG, V. Hill (2

arxiv:0903.4174 v1 · 2009-03-24 · 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{HDPIPSRSO2OV5X6U6JVKQZN3E6}

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	2026-05-18T02:14:26.148402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38de87ca32769d5edfd4f26aa865bb27a4729f87de1d0dce2b03df3988b99525

Aliases

arxiv: 0903.4174 · arxiv_version: 0903.4174v1 · doi: 10.48550/arxiv.0903.4174 · pith_short_12: HDPIPSRSO2OV · pith_short_16: HDPIPSRSO2OV5X6U · pith_short_8: HDPIPSRS

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/HDPIPSRSO2OV5X6U6JVKQZN3E6 \
  | 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: 38de87ca32769d5edfd4f26aa865bb27a4729f87de1d0dce2b03df3988b99525

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de211981a339df23839ee918e3d8ab7d4d6275fab8f08f877edc79661099429c",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-03-24T20:00:02Z",
    "title_canon_sha256": "3a619caecc40a2593a5d1ada7eb43af1bb6154382a76612c9219a5866e769bfd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.4174",
    "kind": "arxiv",
    "version": 1
  }
}