Pith Number

pith:HKX4TG3F

pith:2002:HKX4TG3FJMPB6NBKAZYEY4INXX

not attested not anchored not stored refs pending

Stellar population models of Lick indices with variable element abundance ratios

2) ((1) MPE, (2) USM, Claudia Maraston (1), Daniel Thomas (1), Garching, Munich), & Ralf Bender (1

arxiv:astro-ph/0209250 v3 · 2002-09-12 · 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{HKX4TG3FJMPB6NBKAZYEY4INXX}

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	2026-07-04T16:30:46.707508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3aafc99b654b1e1f342a06704c710dbdd8820cf848acc6c2953225c71c001d0b

Aliases

arxiv: astro-ph/0209250 · arxiv_version: astro-ph/0209250v3 · doi: 10.48550/arxiv.astro-ph/0209250 · pith_short_12: HKX4TG3FJMPB · pith_short_16: HKX4TG3FJMPB6NBK · pith_short_8: HKX4TG3F

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/HKX4TG3FJMPB6NBKAZYEY4INXX \
  | 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: 3aafc99b654b1e1f342a06704c710dbdd8820cf848acc6c2953225c71c001d0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fdc6ad79d569640c6a51333e592ff947df8c1e33c70300daf28fa98c188fb3b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-09-12T20:13:14Z",
    "title_canon_sha256": "d443486515b406e96b8fc8b94a6f381e1d71d65a050e741fef0589e0ffbbe8d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0209250",
    "kind": "arxiv",
    "version": 3
  }
}