Pith Number

pith:ZRM7Q2MO

pith:2004:ZRM7Q2MODTLCVS26AJNTM4HF4L

not attested not anchored not stored refs pending

Large Scale Clustering of Sloan Digital Sky Survey Quasars: Impact of the Baryon Density and the Cosmological Constant

Alexander S. Szalay, Andrew Connolly, Daniel Vanden Berk, Donald York, Issha Kayo, Istvan Csabai, Istvan Szapudi, Jon Brinkmann, Jon Loveday, Kazuhiro Yahata (Univ. of Tokyo), Neta Bahcall, Ravi Sheth, Scott F. Anderson, Takahiko Matsubara, Xiaohui Fan, Yasushi Suto

arxiv:astro-ph/0412631 v3 · 2004-12-27 · 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{ZRM7Q2MODTLCVS26AJNTM4HF4L}

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	2026-05-18T01:40:34.587708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc59f8698e1cd62acb5e025b3670e5e2f33a1d919f249f1da8fe0db6c1627c62

Aliases

arxiv: astro-ph/0412631 · arxiv_version: astro-ph/0412631v3 · doi: 10.48550/arxiv.astro-ph/0412631 · pith_short_12: ZRM7Q2MODTLC · pith_short_16: ZRM7Q2MODTLCVS26 · pith_short_8: ZRM7Q2MO

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/ZRM7Q2MODTLCVS26AJNTM4HF4L \
  | 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: cc59f8698e1cd62acb5e025b3670e5e2f33a1d919f249f1da8fe0db6c1627c62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7fe67240d36717dcbb76638f561694759b3cb323d58877ed858c5ee061b191f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-12-27T03:35:08Z",
    "title_canon_sha256": "6bda7915a9d6188e7eb388cb89e2b8faf6056fe2aa685553902b61528a0d78ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0412631",
    "kind": "arxiv",
    "version": 3
  }
}