Pith Number

pith:D3SZ6XKI

pith:2023:D3SZ6XKIRVPUFC7PVFFEB53XGG

not attested not anchored not stored refs pending

OKRidge: Scalable Optimal k-Sparse Ridge Regression

Chudi Zhong, Cynthia Rudin, Jiachang Liu, Sam Rosen

arxiv:2304.06686 v3 · 2023-04-13 · cs.LG · 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{D3SZ6XKIRVPUFC7PVFFEB53XGG}

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	2026-07-05T07:32:42.626664Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ee59f5d488d5f428befa94a40f777318fa16a6bb52f94b461f1fe47e3a8fd7a

Aliases

arxiv: 2304.06686 · arxiv_version: 2304.06686v3 · doi: 10.48550/arxiv.2304.06686 · pith_short_12: D3SZ6XKIRVPU · pith_short_16: D3SZ6XKIRVPUFC7P · pith_short_8: D3SZ6XKI

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/D3SZ6XKIRVPUFC7PVFFEB53XGG \
  | 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: 1ee59f5d488d5f428befa94a40f777318fa16a6bb52f94b461f1fe47e3a8fd7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72214493514b74faeeaeea9cb32692e206f36ad11e8310251d38f8e531b6e13e",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2023-04-13T17:34:44Z",
    "title_canon_sha256": "80f641b47f936850db930dc678b51433b37c0c0cb92d760dacc6f33b3f67e588"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.06686",
    "kind": "arxiv",
    "version": 3
  }
}