Pith Number

pith:45QWLPUC

pith:2003:45QWLPUCE65CAGEE7GCQZZ554J

not attested not anchored not stored refs pending

A New Empirical Model for the Structural Analysis of Early-type Galaxies and a Critical Review of the Nuker Model

Alister W. Graham, Andres Asensio Ramos, Ignacio Trujillo, Peter Erwin

arxiv:astro-ph/0306023 v1 · 2003-06-02 · 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{45QWLPUCE65CAGEE7GCQZZ554J}

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	2026-05-18T03:57:01.265024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e76165be8227ba201884f9850ce7bde24b24e8084c79dfb0d827cbff2215d5d2

Aliases

arxiv: astro-ph/0306023 · arxiv_version: astro-ph/0306023v1 · doi: 10.48550/arxiv.astro-ph/0306023 · pith_short_12: 45QWLPUCE65C · pith_short_16: 45QWLPUCE65CAGEE · pith_short_8: 45QWLPUC

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/45QWLPUCE65CAGEE7GCQZZ554J \
  | 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: e76165be8227ba201884f9850ce7bde24b24e8084c79dfb0d827cbff2215d5d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b4ba8e2fd16e156372ae889f7236809077db450e2059aeb6acb7b25e52d9952",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-06-02T00:26:52Z",
    "title_canon_sha256": "037ba66e484aa2e130c5de59b3944d35a86faf46ade07633963fcbfebf391831"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0306023",
    "kind": "arxiv",
    "version": 1
  }
}