Pith Number

pith:JOUAD4WD

pith:2009:JOUAD4WDVLFT54POK7DCABYW4A

not attested not anchored not stored refs pending

The Metallicity of the Pleiades

David R. Soderblom, Jeff A. Valenti, John R. Stauffer, Luisa M. Rebull, Tanmoy Laskar

arxiv:0909.0511 v1 · 2009-09-02 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JOUAD4WDVLFT54POK7DCABYW4A}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:34:36.686383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ba801f2c3aacb3ef1ee57c6200716e0176e9a21ff2686902ae963def8436229

Aliases

arxiv: 0909.0511 · arxiv_version: 0909.0511v1 · doi: 10.48550/arxiv.0909.0511 · pith_short_12: JOUAD4WDVLFT · pith_short_16: JOUAD4WDVLFT54PO · pith_short_8: JOUAD4WD

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/JOUAD4WDVLFT54POK7DCABYW4A \
  | 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: 4ba801f2c3aacb3ef1ee57c6200716e0176e9a21ff2686902ae963def8436229

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f48a0a1378794c08e44ea0a48bf806f8531e6567bed37ca3384765154fea27ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-02T20:06:02Z",
    "title_canon_sha256": "cfc5b99eb5ef1803e0f141f1902ca8f33a3d29a07b5be7b734e4f3e0b9ac3925"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0511",
    "kind": "arxiv",
    "version": 1
  }
}