Pith Number

pith:AZD3SXER

pith:2000:AZD3SXERDOZVEJFSKWS4AZHSNW

not attested not anchored not stored refs pending

The Stellar Population Histories of Local Early-Type Galaxies. I. Population Parameters

(2) UCO/Lick Observatory, (3) St. Ambrose, (4) IA-UNAM), Guy Worthey (3), J. Jesus Gonzalez (4) ((1) OCIW, S. C. Trager (1), S. M. Faber (2)

arxiv:astro-ph/0001072 v1 · 2000-01-06 · 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{AZD3SXERDOZVEJFSKWS4AZHSNW}

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	2026-05-18T04:23:01.542667Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0647b95c911bb35224b255a5c064f26d8418d9dfb24c6341ade4ca784d9278ff

Aliases

arxiv: astro-ph/0001072 · arxiv_version: astro-ph/0001072v1 · doi: 10.48550/arxiv.astro-ph/0001072 · pith_short_12: AZD3SXERDOZV · pith_short_16: AZD3SXERDOZVEJFS · pith_short_8: AZD3SXER

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/AZD3SXERDOZVEJFSKWS4AZHSNW \
  | 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: 0647b95c911bb35224b255a5c064f26d8418d9dfb24c6341ade4ca784d9278ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "769dd3cc4f6d0c9e17dc8f0b180757270cd3378b19311d198247c31057302ac6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-01-06T02:21:49Z",
    "title_canon_sha256": "b68392581987e516a1a25d285570f820527e29fee7abf63377eaf32adbfe5337"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0001072",
    "kind": "arxiv",
    "version": 1
  }
}