Pith Number

pith:XOEUQA2S

pith:2019:XOEUQA2SWL4PYARSAQY2C3W2DN

not attested not anchored not stored refs pending

Global Convergence of Least Squares EM for Demixing Two Log-Concave Densities

Wei Qian, Yudong Chen, Yuqian Zhang

arxiv:1906.06776 v2 · 2019-06-16 · stat.ML · cs.LG · 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{XOEUQA2SWL4PYARSAQY2C3W2DN}

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	2026-05-17T23:42:52.995259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb89480352b2f8fc02320431a16eda1b5a3c9f7d1818230a5961b63d34334970

Aliases

arxiv: 1906.06776 · arxiv_version: 1906.06776v2 · doi: 10.48550/arxiv.1906.06776 · pith_short_12: XOEUQA2SWL4P · pith_short_16: XOEUQA2SWL4PYARS · pith_short_8: XOEUQA2S

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/XOEUQA2SWL4PYARSAQY2C3W2DN \
  | 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: bb89480352b2f8fc02320431a16eda1b5a3c9f7d1818230a5961b63d34334970

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7e125a139325e55992a01cba71cbefd733d0ceeb5d6c513243a78882d634f77",
    "cross_cats_sorted": [
      "cs.LG",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2019-06-16T21:26:17Z",
    "title_canon_sha256": "112b6f747ce1c18eef2243c54eb142926bc432b2dc95b43e043fde6f5be037ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.06776",
    "kind": "arxiv",
    "version": 2
  }
}