Pith Number

pith:ZU4DY7MX

pith:2003:ZU4DY7MXNQKORBTY76HXVQDYNJ

not attested not anchored not stored refs pending

The Morphological Butcher-Oemler effect in the SDSS Cut&Enhance Galaxy Cluster Catalog

Adam Knudson (CMU), Christopher J. Miller (CMU), James Annis (FNAL), Maki Sekiguchi (Tokyo), Mariangela Bernardi, Masafumi Yagi (NAOJ), Michael S. Crouch (CMU), Neta A. Bahcall (PU), Percy L. Gomez (CMU), Ravi K. Sheth (Pitt), Rita S. J. Kim (JHU), Sadanori Okamura (Tokyo), Sarah Hansen (Chicago), Shane A. Zabel, Shang-Shan Chong, Timothy A. Mckay (Michigan), Tomotsugu Goto

arxiv:astro-ph/0301302 v2 · 2003-01-15 · 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{ZU4DY7MXNQKORBTY76HXVQDYNJ}

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	2026-05-18T01:40:39.577722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd383c7d976c14e88678ff8f7ac0786a51419619244947e1a2d5d452bb312668

Aliases

arxiv: astro-ph/0301302 · arxiv_version: astro-ph/0301302v2 · doi: 10.48550/arxiv.astro-ph/0301302 · pith_short_12: ZU4DY7MXNQKO · pith_short_16: ZU4DY7MXNQKORBTY · pith_short_8: ZU4DY7MX

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/ZU4DY7MXNQKORBTY76HXVQDYNJ \
  | 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: cd383c7d976c14e88678ff8f7ac0786a51419619244947e1a2d5d452bb312668

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78d96fa67fd06d2862ad376b82f4da5e077f85f4e0e4f4bf7abd0508e45c3349",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-01-15T22:08:33Z",
    "title_canon_sha256": "cb7a1b0dee9693e1f1ddeccac0847cbb1497fe02e15e24e3fa82fb44be0ccd0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0301302",
    "kind": "arxiv",
    "version": 2
  }
}