Pith Number

pith:7F74ORSS

pith:2013:7F74ORSSDYJTSUEUFCXWUWMYPP

not attested not anchored not stored refs pending

Maximum likelihood estimation in constrained parameter spaces for mixtures of factor analyzers

Francesca Greselin, Salvatore Ingrassia

arxiv:1301.1505 v1 · 2013-01-08 · 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{7F74ORSSDYJTSUEUFCXWUWMYPP}

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	2026-05-18T03:36:57.293441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f97fc746521e1339509428af6a59987bf118b1ef40f503a9a1856f2a4b0f5846

Aliases

arxiv: 1301.1505 · arxiv_version: 1301.1505v1 · doi: 10.48550/arxiv.1301.1505 · pith_short_12: 7F74ORSSDYJT · pith_short_16: 7F74ORSSDYJTSUEU · pith_short_8: 7F74ORSS

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/7F74ORSSDYJTSUEUFCXWUWMYPP \
  | 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: f97fc746521e1339509428af6a59987bf118b1ef40f503a9a1856f2a4b0f5846

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e758404bf6b442efb11fff4ea85a830e5d16e474dbb003653d77d261c4bb1cf8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2013-01-08T12:10:57Z",
    "title_canon_sha256": "8c583ea7b7e094e9c55aecb5d4cbff49e2f8dd48a16982cf5fce2ea7494da052"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.1505",
    "kind": "arxiv",
    "version": 1
  }
}