Pith Number

pith:TZDRQZRO

pith:2012:TZDRQZRORILO3PLQDXKLNLSUBV

not attested not anchored not stored refs pending

Sparse Ising Models with Covariates

Elizaveta Levina, Jie Cheng, Ji Zhu, Pei Wang

arxiv:1209.6342 v1 · 2012-09-27 · 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{TZDRQZRORILO3PLQDXKLNLSUBV}

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	2026-05-18T03:44:34.502943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e4718662e8a16edbd701dd4b6ae540d480fb5d1be006246fe30ab76a58344ed

Aliases

arxiv: 1209.6342 · arxiv_version: 1209.6342v1 · doi: 10.48550/arxiv.1209.6342 · pith_short_12: TZDRQZRORILO · pith_short_16: TZDRQZRORILO3PLQ · pith_short_8: TZDRQZRO

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/TZDRQZRORILO3PLQDXKLNLSUBV \
  | 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: 9e4718662e8a16edbd701dd4b6ae540d480fb5d1be006246fe30ab76a58344ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1348e0876a590a229cc6c0cd7dff5b390dfbee2ef96602a235792546b945d7c0",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2012-09-27T19:43:44Z",
    "title_canon_sha256": "f92d56f2e992fa71a14a9e50d15aac7f9be744a21cca9b58b32846d9699f5b7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.6342",
    "kind": "arxiv",
    "version": 1
  }
}