Pith Number

pith:RV6SJYXQ

pith:2012:RV6SJYXQHFKF3FKQXV56SSIP6X

not attested not anchored not stored refs pending

Discriminative variable selection for clustering with the sparse Fisher-EM algorithm

Camille Brunet, Charles Bouveyron

arxiv:1204.2067 v1 · 2012-04-10 · stat.ME · math.ST · 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{RV6SJYXQHFKF3FKQXV56SSIP6X}

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	2026-05-18T03:58:13.419245Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d7d24e2f039545d9550bd7be9490ff5c2ea550892fa1f24729c114c190b09f0

Aliases

arxiv: 1204.2067 · arxiv_version: 1204.2067v1 · doi: 10.48550/arxiv.1204.2067 · pith_short_12: RV6SJYXQHFKF · pith_short_16: RV6SJYXQHFKF3FKQ · pith_short_8: RV6SJYXQ

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/RV6SJYXQHFKF3FKQXV56SSIP6X \
  | 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: 8d7d24e2f039545d9550bd7be9490ff5c2ea550892fa1f24729c114c190b09f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9b32851d883e94dae4034bcc9fe6c272df664544d7d44db5d7ee42b66c0d20e",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2012-04-10T07:34:07Z",
    "title_canon_sha256": "1887fb59eab4c4b4fbcc340eb0a9fceb66af8d4977b6f8ae8d426258c7b2866a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2067",
    "kind": "arxiv",
    "version": 1
  }
}