Pith Number

pith:L7QESDED

pith:2025:L7QESDEDAL6S4MG7UYKSWZZL2O

not attested not anchored not stored refs pending

Subspace Newton's Method for $\ell_0$-Regularized Optimization Problems with Box Constraint

Qingna Li, Yuge Ye

arxiv:2505.17382 v1 · 2025-05-23 · 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{L7QESDEDAL6S4MG7UYKSWZZL2O}

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	2026-07-05T11:08:25.096588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fe0490c8302fd2e30dfa6152b672bd3a110e21798782183e8445d1bb86c4fe5

Aliases

arxiv: 2505.17382 · arxiv_version: 2505.17382v1 · doi: 10.48550/arxiv.2505.17382 · pith_short_12: L7QESDEDAL6S · pith_short_16: L7QESDEDAL6S4MG7 · pith_short_8: L7QESDED

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/L7QESDEDAL6S4MG7UYKSWZZL2O \
  | 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: 5fe0490c8302fd2e30dfa6152b672bd3a110e21798782183e8445d1bb86c4fe5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33d9aeecd31d19f5bc6290d1c487c21493a110017066f78ae4897a18344ee351",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2025-05-23T01:40:19Z",
    "title_canon_sha256": "8bc756dfaaa2eaeca3f85f89c43e449a7be536786694d46ec4036f98f1d8c85a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.17382",
    "kind": "arxiv",
    "version": 1
  }
}