Pith Number

pith:JI3NLURW

pith:2009:JI3NLURWXSX4RPRARIU4WLDXFZ

not attested not anchored not stored refs pending

Clustering of Low-Redshift (z <= 2.2) Quasars from the Sloan Digital Sky Survey

(2) Princeton, (3) University of Washington, (4) Drexel University, (5) Ohio State University, (6) York University, (7) University of Illinois at Urbana-Champaign), Andrew J. Connolly (3), Daniel E. Vanden Berk (1), David H. Weinberg (5), Donald P. Schneider (1), Gordon T. Richards (4), Michael A. Strauss (2), Neta A. Bahcall (2), Nicholas P. Ross (1), Patrick B. Hall (6), Robert J. Brunner (7) ((1) The Pennsylvania State University, Yue Shen (2)

arxiv:0903.3230 v1 · 2009-03-18 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JI3NLURWXSX4RPRARIU4WLDXFZ}

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	2026-05-18T02:14:27.446451Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a36d5d236bcafc8be208a29cb2c772e68fb48a7e7a1e41582173356c3dbbf6d

Aliases

arxiv: 0903.3230 · arxiv_version: 0903.3230v1 · doi: 10.48550/arxiv.0903.3230 · pith_short_12: JI3NLURWXSX4 · pith_short_16: JI3NLURWXSX4RPRA · pith_short_8: JI3NLURW

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/JI3NLURWXSX4RPRARIU4WLDXFZ \
  | 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: 4a36d5d236bcafc8be208a29cb2c772e68fb48a7e7a1e41582173356c3dbbf6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71a6a1538c3f18af7c855845f41aca24bbbe81c7d340029aa810e3f38f1dc7cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-03-18T20:10:38Z",
    "title_canon_sha256": "2ceb74d85ea766041ccb6a8644406ade58c4d8c4a4347252b78e48df282c07db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3230",
    "kind": "arxiv",
    "version": 1
  }
}