Pith Number

pith:4QJWLCGW

pith:2017:4QJWLCGWVDW46L2MFG6PUMFRWI

not attested not anchored not stored refs pending

A Coordinate-wise Optimization Algorithm for Sparse Inverse Covariance Selection

Ganzhao Yuan, Haoxian Tan, Wei-Shi Zheng

arxiv:1711.07038 v2 · 2017-11-19 · cs.NA · 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{4QJWLCGWVDW46L2MFG6PUMFRWI}

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	2026-05-18T00:19:16.857637Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4136588d6a8edcf2f4c29bcfa30b1b20f655cfac5a2cf3799b597ac66e659de

Aliases

arxiv: 1711.07038 · arxiv_version: 1711.07038v2 · doi: 10.48550/arxiv.1711.07038 · pith_short_12: 4QJWLCGWVDW4 · pith_short_16: 4QJWLCGWVDW46L2M · pith_short_8: 4QJWLCGW

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/4QJWLCGWVDW46L2MFG6PUMFRWI \
  | 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: e4136588d6a8edcf2f4c29bcfa30b1b20f655cfac5a2cf3799b597ac66e659de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71ca8d167924e11fd518698c3bf691f62fc1b56adc9a77b7ef97ce8e863fc180",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2017-11-19T16:04:51Z",
    "title_canon_sha256": "be198141be278c2e36b78c328941bec8028cab3ab2ee680bbc56c580ce1558f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.07038",
    "kind": "arxiv",
    "version": 2
  }
}