Pith Number

pith:G6GZ45XH

pith:2025:G6GZ45XHEQRBVQ7VBJPFT64MCH

not attested not anchored not stored refs pending

Scalable First-order Method for Certifying Optimal k-Sparse GLMs

Andrea Lodi, Jiachang Liu, Soroosh Shafiee

arxiv:2502.09502 v3 · 2025-02-13 · cs.LG · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G6GZ45XHEQRBVQ7VBJPFT64MCH}

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	2026-07-05T11:19:51.378041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

378d9e76e724221ac3f50a5e59fb8c11ef0a2fe188be4935037c04bbbd6f7207

Aliases

arxiv: 2502.09502 · arxiv_version: 2502.09502v3 · doi: 10.48550/arxiv.2502.09502 · pith_short_12: G6GZ45XHEQRB · pith_short_16: G6GZ45XHEQRBVQ7V · pith_short_8: G6GZ45XH

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/G6GZ45XHEQRBVQ7VBJPFT64MCH \
  | 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: 378d9e76e724221ac3f50a5e59fb8c11ef0a2fe188be4935037c04bbbd6f7207

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f26956a664cc463204e24b30acd48803591d74bd76c5edec179177ee77ecce98",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-02-13T17:14:18Z",
    "title_canon_sha256": "5d05c1fa24db55561485184e7ff54e71b36b49532abf2dbf614a83657252c31e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.09502",
    "kind": "arxiv",
    "version": 3
  }
}