Pith Number

pith:NANBLA7G

pith:2009:NANBLA7GP2QX6ZMT2NFGOJLJ5S

not attested not anchored not stored refs pending

The clustering of barred galaxies in the local Universe

Cheng Li, Dimitri A. Gadotti, Guinevere Kauffmann, Shude Mao

arxiv:0902.1175 v2 · 2009-02-06 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NANBLA7GP2QX6ZMT2NFGOJLJ5S}

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	2026-05-18T02:14:48.942519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

681a1583e67ea17f6593d34a672569ec82cb059845938660d0659cf1efa589d2

Aliases

arxiv: 0902.1175 · arxiv_version: 0902.1175v2 · doi: 10.48550/arxiv.0902.1175 · pith_short_12: NANBLA7GP2QX · pith_short_16: NANBLA7GP2QX6ZMT · pith_short_8: NANBLA7G

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/NANBLA7GP2QX6ZMT2NFGOJLJ5S \
  | 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: 681a1583e67ea17f6593d34a672569ec82cb059845938660d0659cf1efa589d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed7d9793b7b296f0788881c4b7c796ebe24e858e5410eccf363e66a2671e438a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-02-06T21:00:04Z",
    "title_canon_sha256": "6174a451bfea0af3770988579afc01f11f11f4a12c3fb97aaddd446db3a0717a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1175",
    "kind": "arxiv",
    "version": 2
  }
}