Pith Number

pith:CE2QWWFP

pith:2017:CE2QWWFPRK64TICGGJRPAV2U63

not attested not anchored not stored refs pending

Speeding Up Latent Variable Gaussian Graphical Model Estimation via Nonconvex Optimizations

Jian Ma, Pan Xu, Quanquan Gu

arxiv:1702.08651 v1 · 2017-02-28 · stat.ML · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CE2QWWFPRK64TICGGJRPAV2U63}

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	2026-05-18T00:49:48.186646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11350b58af8abdc9a0463262f05754f6c4ca85a28e5c49bd0ee39cea0a01336d

Aliases

arxiv: 1702.08651 · arxiv_version: 1702.08651v1 · doi: 10.48550/arxiv.1702.08651 · pith_short_12: CE2QWWFPRK64 · pith_short_16: CE2QWWFPRK64TICG · pith_short_8: CE2QWWFP

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/CE2QWWFPRK64TICGGJRPAV2U63 \
  | 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: 11350b58af8abdc9a0463262f05754f6c4ca85a28e5c49bd0ee39cea0a01336d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9176e4301d22e16c02ab2212f470af2f76b4dacb0d6e89a7e3495c9e5081e0ad",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2017-02-28T05:38:40Z",
    "title_canon_sha256": "ffbc73a513450a141382f679902f7e047278655ccf17fe0d60781b874c69486b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.08651",
    "kind": "arxiv",
    "version": 1
  }
}