Pith Number

pith:5NRBRWY3

pith:2011:5NRBRWY3NYJDX7IM2EAUSPA3SW

not attested not anchored not stored refs pending

High-dimensional Sparse Inverse Covariance Estimation using Greedy Methods

Ali Jalali, Christopher C. Johnson, Pradeep Ravikumar

arxiv:1112.6411 v1 · 2011-12-29 · cs.LG · math.ST · 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{5NRBRWY3NYJDX7IM2EAUSPA3SW}

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	2026-05-18T04:01:25.699490Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb6218db1b6e123bfd0cd101493c1b9580bef14cb4ef68a88fc6c5e188af82c6

Aliases

arxiv: 1112.6411 · arxiv_version: 1112.6411v1 · doi: 10.48550/arxiv.1112.6411 · pith_short_12: 5NRBRWY3NYJD · pith_short_16: 5NRBRWY3NYJDX7IM · pith_short_8: 5NRBRWY3

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/5NRBRWY3NYJDX7IM2EAUSPA3SW \
  | 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: eb6218db1b6e123bfd0cd101493c1b9580bef14cb4ef68a88fc6c5e188af82c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be0c88950696bb8df9ad544446ea6c414de256cb890384643dedef772347f235",
    "cross_cats_sorted": [
      "math.ST",
      "stat.ML",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2011-12-29T20:35:40Z",
    "title_canon_sha256": "6526c91494af45c1b0a86876d62df3112e798db4400b9de4676fff019fc43f54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.6411",
    "kind": "arxiv",
    "version": 1
  }
}