Pith Number

pith:QUFE7EJY

pith:2008:QUFE7EJYYKDJQDUX42G4R6YIRD

not attested not anchored not stored refs pending

Detailed Abundances for 28 Metal-poor Stars: Stellar Relics in the Milky Way

(2) OSU, (3) INAF-OPAD, 4), (4) LANL), Alexander Heger (1, David K. Lai (1), Jennifer A. Johnson (2), Michael Bolte (1), Sara Lucatello (3), S.E. Woosley (1) ((1) UCSC

arxiv:0804.1370 v2 · 2008-04-08 · 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{QUFE7EJYYKDJQDUX42G4R6YIRD}

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	2026-05-18T02:35:22.929201Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

850a4f9138c286980e97e68dc8fb0888dd8bcd883390656d46b096ab11b4d6f9

Aliases

arxiv: 0804.1370 · arxiv_version: 0804.1370v2 · doi: 10.48550/arxiv.0804.1370 · pith_short_12: QUFE7EJYYKDJ · pith_short_16: QUFE7EJYYKDJQDUX · pith_short_8: QUFE7EJY

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/QUFE7EJYYKDJQDUX42G4R6YIRD \
  | 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: 850a4f9138c286980e97e68dc8fb0888dd8bcd883390656d46b096ab11b4d6f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6967812c911d8bdcd4a3f7473e19e6046bbca0ac77c1f6c654ec17c3e4f77b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-04-08T21:40:26Z",
    "title_canon_sha256": "ec61fbbe3d8b09352f4246f8f55479bc4fa3db8bba52f7ffeb64436318276e4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.1370",
    "kind": "arxiv",
    "version": 2
  }
}