Pith Number

pith:TU4HLZPS

pith:2017:TU4HLZPSVFAKM2H5VHCDPDSUSU

not attested not anchored not stored refs pending

The Multiple Roots Phenomenon in Maximum Likelihood Estimation for Factor Analysis

Despina Stasi, Donald Richards, Elizabeth Gross, Sonja Petrovi\'c

arxiv:1702.04477 v1 · 2017-02-15 · 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{TU4HLZPSVFAKM2H5VHCDPDSUSU}

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	2026-05-18T00:50:41.569635Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d3875e5f2a940a668fda9c4378e549524a04e243d86b3cc84114aab770967e5

Aliases

arxiv: 1702.04477 · arxiv_version: 1702.04477v1 · doi: 10.48550/arxiv.1702.04477 · pith_short_12: TU4HLZPSVFAK · pith_short_16: TU4HLZPSVFAKM2H5 · pith_short_8: TU4HLZPS

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/TU4HLZPSVFAKM2H5VHCDPDSUSU \
  | 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: 9d3875e5f2a940a668fda9c4378e549524a04e243d86b3cc84114aab770967e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ea454dfe9e0f5a355200d70342bd5b687f0eec17dd9ad96c4bc7e99074e4bba",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2017-02-15T06:53:03Z",
    "title_canon_sha256": "7d99affa3e72de59d256ff2b667667126f85ae52c6ae7ea0f0ebd229434b9b88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.04477",
    "kind": "arxiv",
    "version": 1
  }
}