Pith Number

pith:POG4YIUV

pith:2026:POG4YIUV7ZUBHEYLQ2GYDP7G63

not attested not anchored not stored refs pending

Exact-Penalty Prox-Linear Methods for Bilevel Optimization with $\ell_1$ Lower-Level Gradient Penalty

Jiani Li, Qingna Li, Yutong Zheng

arxiv:2606.01055 v1 · 2026-05-31 · 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{POG4YIUV7ZUBHEYLQ2GYDP7G63}

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	2026-06-02T01:04:19.903483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b8dcc2295fe6813930b868d81bfe6f6d81c086e9734952a1340e25626f1bb81

Aliases

arxiv: 2606.01055 · arxiv_version: 2606.01055v1 · doi: 10.48550/arxiv.2606.01055 · pith_short_12: POG4YIUV7ZUB · pith_short_16: POG4YIUV7ZUBHEYL · pith_short_8: POG4YIUV

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/POG4YIUV7ZUBHEYLQ2GYDP7G63 \
  | 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: 7b8dcc2295fe6813930b868d81bfe6f6d81c086e9734952a1340e25626f1bb81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1b3fe764b785e27acf3540d535350ebbceef4f0d9888fa71abaabbdb9e03aef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-05-31T06:51:14Z",
    "title_canon_sha256": "81c767469eafb224b73eff3d12eca7b018f003bdc4a8e4737a5e9a39e7e9aa71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.01055",
    "kind": "arxiv",
    "version": 1
  }
}