Pith Number

pith:IKV7WI2M

pith:2019:IKV7WI2MISU2GQOMZEFGNB4RPL

not attested not anchored not stored refs pending

Sharp Analysis of Expectation-Maximization for Weakly Identifiable Models

Bin Yu, Koulik Khamaru, Martin J. Wainwright, Michael I. Jordan, Nhat Ho, Raaz Dwivedi

arxiv:1902.00194 v4 · 2019-02-01 · math.ST · cs.LG · 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{IKV7WI2MISU2GQOMZEFGNB4RPL}

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	2026-07-05T03:31:51.138225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42abfb234c44a9a341ccc90a6687917ae551dbb4be09affb0b1d4368e80ae775

Aliases

arxiv: 1902.00194 · arxiv_version: 1902.00194v4 · doi: 10.48550/arxiv.1902.00194 · pith_short_12: IKV7WI2MISU2 · pith_short_16: IKV7WI2MISU2GQOM · pith_short_8: IKV7WI2M

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/IKV7WI2MISU2GQOMZEFGNB4RPL \
  | 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: 42abfb234c44a9a341ccc90a6687917ae551dbb4be09affb0b1d4368e80ae775

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d877b502838dc817fb3e5239b82e678715580d810cbd32b53028d074f0762c9",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2019-02-01T06:07:08Z",
    "title_canon_sha256": "9aba840f6637cd0928e109ccdbe55eb08a7494f6a3774fccb2cdd527b3f34b9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.00194",
    "kind": "arxiv",
    "version": 4
  }
}