Pith Number

pith:FHYOZHGG

pith:2009:FHYOZHGGMB6RSE7X3F2L6IEJYQ

not attested not anchored not stored refs pending

Early-Age Evolution of the Milky Way Related by Extremely Metal-Poor Stars

Masayuki Y. Fujimoto, Takuma Suda, Yutaka Komiya

arxiv:0901.0617 v1 · 2009-01-06 · 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{FHYOZHGGMB6RSE7X3F2L6IEJYQ}

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	2026-05-18T04:29:24.152331Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29f0ec9cc6607d1913f7d974bf2089c40b63ecca8d2b3c93f7efc4f6a3221f99

Aliases

arxiv: 0901.0617 · arxiv_version: 0901.0617v1 · doi: 10.48550/arxiv.0901.0617 · pith_short_12: FHYOZHGGMB6R · pith_short_16: FHYOZHGGMB6RSE7X · pith_short_8: FHYOZHGG

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/FHYOZHGGMB6RSE7X3F2L6IEJYQ \
  | 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: 29f0ec9cc6607d1913f7d974bf2089c40b63ecca8d2b3c93f7efc4f6a3221f99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed6df87474077c871cde5bf30f3a3bb1b11a3b28a82b58d004eb348dacba69bd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-01-06T10:27:10Z",
    "title_canon_sha256": "8d2481d15dd20940ab99e1c0082d6c89313174f2e5a1a11b340d304f4a4182d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0617",
    "kind": "arxiv",
    "version": 1
  }
}