Pith Number

pith:NCULAPYL

pith:2013:NCULAPYLCUBMHTWW5HQEYJGPH5

not attested not anchored not stored refs pending

Network-based clustering with mixtures of L1-penalized Gaussian graphical models: an empirical investigation

Sach Mukherjee, Steven M. Hill

arxiv:1301.2194 v1 · 2013-01-10 · stat.ML · cs.LG · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NCULAPYLCUBMHTWW5HQEYJGPH5}

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	2026-05-18T03:36:47.226558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68a8b03f0b1502c3ced6e9e04c24cf3f480d3ae35132baa6a80f1a6c7a231950

Aliases

arxiv: 1301.2194 · arxiv_version: 1301.2194v1 · doi: 10.48550/arxiv.1301.2194 · pith_short_12: NCULAPYLCUBM · pith_short_16: NCULAPYLCUBMHTWW · pith_short_8: NCULAPYL

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/NCULAPYLCUBMHTWW5HQEYJGPH5 \
  | 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: 68a8b03f0b1502c3ced6e9e04c24cf3f480d3ae35132baa6a80f1a6c7a231950

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ece3d2eb7e228b039d477b5af334372d75a58a84e96358b8ae7b36023440076e",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2013-01-10T17:23:11Z",
    "title_canon_sha256": "7818cd7de0b7a82455df12cc18235ba6e1d757e2076195ebcc2dba0e2e570e45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2194",
    "kind": "arxiv",
    "version": 1
  }
}