Pith Number

pith:MDHKEVYI

pith:2010:MDHKEVYITWRR4XYY5IXHWKSCDA

not attested not anchored not stored refs pending

High-dimensional covariance estimation based on Gaussian graphical models

Min Xu, Peter Buhlmann, Philipp Rutimann, Shuheng Zhou

arxiv:1009.0530 v2 · 2010-09-02 · stat.ML · 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{MDHKEVYITWRR4XYY5IXHWKSCDA}

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	2026-05-18T04:04:55.003626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60cea257089da31e5f18ea2e7b2a4218329811a05ec148577ff2e959e141e9e0

Aliases

arxiv: 1009.0530 · arxiv_version: 1009.0530v2 · doi: 10.48550/arxiv.1009.0530 · pith_short_12: MDHKEVYITWRR · pith_short_16: MDHKEVYITWRR4XYY · pith_short_8: MDHKEVYI

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/MDHKEVYITWRR4XYY5IXHWKSCDA \
  | 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: 60cea257089da31e5f18ea2e7b2a4218329811a05ec148577ff2e959e141e9e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ad0a94ac9283a5eb68ecc3482e5489dbb83d8ffdde278bbe71170656f70213f",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2010-09-02T20:06:40Z",
    "title_canon_sha256": "2f4e8214580fb7d66f38194d79835e1ca5ebb12357223cb38269f6e7e9adcda4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.0530",
    "kind": "arxiv",
    "version": 2
  }
}