Pith Number

pith:UWLAV6JR

pith:2011:UWLAV6JREERFR74QBD3W7YAPTO

not attested not anchored not stored refs pending

Sparse Inverse Covariance Estimation via an Adaptive Gradient-Based Method

Dongmin Kim, Suvrit Sra

arxiv:1106.5175 v1 · 2011-06-25 · stat.ML

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UWLAV6JREERFR74QBD3W7YAPTO}

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	2026-05-18T04:19:14.136462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5960af931212258ff9008f76fe00f9b8ca9068bbae769e85097e2066cb4111b

Aliases

arxiv: 1106.5175 · arxiv_version: 1106.5175v1 · doi: 10.48550/arxiv.1106.5175 · pith_short_12: UWLAV6JREERF · pith_short_16: UWLAV6JREERFR74Q · pith_short_8: UWLAV6JR

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/UWLAV6JREERFR74QBD3W7YAPTO \
  | 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: a5960af931212258ff9008f76fe00f9b8ca9068bbae769e85097e2066cb4111b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e385dfc7a042cc6065f31321f69b1b4c1e01f295ef2798760e3a965c084eaf57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2011-06-25T21:38:55Z",
    "title_canon_sha256": "ee996c67612a29e0a174bec215d5c0fe6b83c84ef408008c4815a950e7c3e72e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.5175",
    "kind": "arxiv",
    "version": 1
  }
}