Pith Number

pith:4WCJLLEY

pith:2002:4WCJLLEYZLLXD4V47MLDEKMQLX

not attested not anchored not stored refs pending

Spatial Clustering of Galaxies in Large Datasets

Adrian Pope, Alexander S. Szalay, Andrew Connolly, Istvan Szapudi, Jim Gray, Takahiko Matsubara, Tamas Budavari

arxiv:cs/0208015 v1 · 2002-08-07 · cs.DB · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4WCJLLEYZLLXD4V47MLDEKMQLX}

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	2026-07-04T16:33:34.720029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e58495ac98cad771f2bcfb163229905ddfa8f53b9201499f7e6078e0c8a4d2ff

Aliases

arxiv: cs/0208015 · arxiv_version: cs/0208015v1 · doi: 10.48550/arxiv.cs/0208015 · pith_short_12: 4WCJLLEYZLLX · pith_short_16: 4WCJLLEYZLLXD4V4 · pith_short_8: 4WCJLLEY

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/4WCJLLEYZLLXD4V47MLDEKMQLX \
  | 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: e58495ac98cad771f2bcfb163229905ddfa8f53b9201499f7e6078e0c8a4d2ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20dacf61c399af4e1fd0a05c3685c5b3dc57429fae54aeef87e3da662c175268",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "",
    "primary_cat": "cs.DB",
    "submitted_at": "2002-08-07T23:06:40Z",
    "title_canon_sha256": "a0739f17e48baca83b45db3f7f5a102c8d36cb2a1d7644a2ef8a2f853552142b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0208015",
    "kind": "arxiv",
    "version": 1
  }
}