Pith Number

pith:L332DF3A

pith:2000:L332DF3AIEDDDOEPBW4ZXKETXQ

not attested not anchored not stored refs pending

On the dependence of spectroscopic indices of early-type galaxies on age, metallicity and velocity dispersion

2), (2) Univ. Cat\'olica de Chile, (3) University of Waterloo), Harald Kuntschner (1), John R. Lucey (1), Michael J. Hudson (3), Roger L. Davies(1) ((1) University of Durham, Russell J. Smith (1

arxiv:astro-ph/0011234 v1 · 2000-11-12 · 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{L332DF3AIEDDDOEPBW4ZXKETXQ}

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	2026-05-18T01:40:45.297384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ef7a19760410631b88f0db99ba893bc247faea33831845f3e647639fca4fbfa

Aliases

arxiv: astro-ph/0011234 · arxiv_version: astro-ph/0011234v1 · doi: 10.48550/arxiv.astro-ph/0011234 · pith_short_12: L332DF3AIEDD · pith_short_16: L332DF3AIEDDDOEP · pith_short_8: L332DF3A

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/L332DF3AIEDDDOEPBW4ZXKETXQ \
  | 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: 5ef7a19760410631b88f0db99ba893bc247faea33831845f3e647639fca4fbfa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f454dd6daf2e0a4c359be46b865324b9be87206fee130eb0b4bd645197a2ac10",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-11-12T19:19:27Z",
    "title_canon_sha256": "7706e1e39c2914bb2dd38dfa6269a684eaf4af9da9cb495acb0f2f1718416b96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0011234",
    "kind": "arxiv",
    "version": 1
  }
}