Pith Number

pith:YUHMV6ZI

pith:2010:YUHMV6ZIONOWE2ADUAICGV3FIW

not attested not anchored not stored refs pending

Group Lasso estimation of high-dimensional covariance matrices

Jean-Michel Loubes (IMT), J\'er\'emie Bigot (IMT), Lilian Muniz Alvarez (IMT), Rolando Biscay (IMFAV-DEUV)

arxiv:1010.1601 v2 · 2010-10-08 · 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{YUHMV6ZIONOWE2ADUAICGV3FIW}

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	2026-05-18T04:10:23.670170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c50ecafb28735d626803a0102357654599e1be68a2c1ea61c1bba033176c0c61

Aliases

arxiv: 1010.1601 · arxiv_version: 1010.1601v2 · doi: 10.48550/arxiv.1010.1601 · pith_short_12: YUHMV6ZIONOW · pith_short_16: YUHMV6ZIONOWE2AD · pith_short_8: YUHMV6ZI

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/YUHMV6ZIONOWE2ADUAICGV3FIW \
  | 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: c50ecafb28735d626803a0102357654599e1be68a2c1ea61c1bba033176c0c61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12a43049457ba451e997c7d6bcea40342fa2fa4d8dd5519b59f1cbdbe7a28233",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2010-10-08T06:06:49Z",
    "title_canon_sha256": "13e3c03f3f5e0138390c8ada5618a78ee65661173c911c514a469e2b82b26700"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.1601",
    "kind": "arxiv",
    "version": 2
  }
}