Pith Number

pith:UIPBQJAG

pith:2013:UIPBQJAGRH5AR5PSDNYTSRO26H

not attested not anchored not stored refs pending

Constrained Optimization for a Subset of the Gaussian Parsimonious Clustering Models

Paul McNicholas, Ryan P. Browne, Sanjeena Subedi

arxiv:1306.5824 v1 · 2013-06-25 · stat.CO · math.ST · stat.ML · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UIPBQJAGRH5AR5PSDNYTSRO26H}

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	2026-05-18T03:19:58.450067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a21e18240689fa08f5f21b713945daf1eff394af98cb7dad744a5f4e54f492ae

Aliases

arxiv: 1306.5824 · arxiv_version: 1306.5824v1 · doi: 10.48550/arxiv.1306.5824 · pith_short_12: UIPBQJAGRH5A · pith_short_16: UIPBQJAGRH5AR5PS · pith_short_8: UIPBQJAG

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/UIPBQJAGRH5AR5PSDNYTSRO26H \
  | 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: a21e18240689fa08f5f21b713945daf1eff394af98cb7dad744a5f4e54f492ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "757e82846cab577c9277174a3aad90d46781aa1406bd04abd4a92c5731e9e866",
    "cross_cats_sorted": [
      "math.ST",
      "stat.ML",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2013-06-25T01:27:09Z",
    "title_canon_sha256": "2e1a749c9e2b020b3cba967e5b0a770b115ba0c4dbf87bf659e6e14ea9761ec5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.5824",
    "kind": "arxiv",
    "version": 1
  }
}