Pith Number

pith:C7W3G5LO

pith:2010:C7W3G5LO6PNZAB4II2TBYOKLP2

not attested not anchored not stored refs pending

Split Bregman Method for Sparse Inverse Covariance Estimation with Matrix Iteration Acceleration

Gui-Bo Ye, Jian-Feng Cai, Xiaohui Xie

arxiv:1012.0975 v2 · 2010-12-05 · 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{C7W3G5LO6PNZAB4II2TBYOKLP2}

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	2026-05-18T02:23:15.773112Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17edb3756ef3db90078846a61c394b7ebe3c45dbbd263e721b3207458cb8c1d5

Aliases

arxiv: 1012.0975 · arxiv_version: 1012.0975v2 · doi: 10.48550/arxiv.1012.0975 · pith_short_12: C7W3G5LO6PNZ · pith_short_16: C7W3G5LO6PNZAB4I · pith_short_8: C7W3G5LO

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/C7W3G5LO6PNZAB4II2TBYOKLP2 \
  | 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: 17edb3756ef3db90078846a61c394b7ebe3c45dbbd263e721b3207458cb8c1d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ac06d07b6c8f044a5867778a6d185693863c345833b21dc7eaea91996ef60d2",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2010-12-05T07:27:42Z",
    "title_canon_sha256": "d69adef3e443564abf7d56ebfd0503fc5a7847cd1bcb236be2073bf90975bd55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.0975",
    "kind": "arxiv",
    "version": 2
  }
}