Pith Number

pith:PZIL2OD2

pith:2012:PZIL2OD2OPRGKUC4F7C4PFSJG7

not attested not anchored not stored refs pending

Data Clustering via Principal Direction Gap Partitioning

Amy Langville, Carl Meyer, Dexin Zhou, Jeremy Diepenbrock, Ralph Abbey, Shaina Race

arxiv:1211.4142 v1 · 2012-11-17 · stat.ML · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PZIL2OD2OPRGKUC4F7C4PFSJG7}

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	2026-05-18T03:40:27.854721Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e50bd387a73e265505c2fc5c7964937d138b68d7a40cabcc8cf7a89ea053723

Aliases

arxiv: 1211.4142 · arxiv_version: 1211.4142v1 · doi: 10.48550/arxiv.1211.4142 · pith_short_12: PZIL2OD2OPRG · pith_short_16: PZIL2OD2OPRGKUC4 · pith_short_8: PZIL2OD2

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/PZIL2OD2OPRGKUC4F7C4PFSJG7 \
  | 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: 7e50bd387a73e265505c2fc5c7964937d138b68d7a40cabcc8cf7a89ea053723

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70ae13d526740069da49bebd198709a1cb9ce6206ce3765b2611a88e69891068",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2012-11-17T18:28:30Z",
    "title_canon_sha256": "8962d1614274d0e937fbff5bfb950eab56061b9a5dbcfb37441a0521d7705757"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4142",
    "kind": "arxiv",
    "version": 1
  }
}