Pith Number

pith:P744DQFU

pith:2025:P744DQFU62FOT7S6ZWBA5QM2BN

not attested not anchored not stored refs pending

On the complexity of proximal gradient and proximal gradient-Newton-CG methods for \(\ell_1\)-regularized Optimization

Hong Zhu

arxiv:2504.15752 v3 · 2025-04-22 · 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{P744DQFU62FOT7S6ZWBA5QM2BN}

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	2026-06-19T16:10:29.630099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ff9c1c0b4f68ae9fe5ecd820ec19a0b70df5c81e79adc2ee7e04574f8643621

Aliases

arxiv: 2504.15752 · arxiv_version: 2504.15752v3 · doi: 10.48550/arxiv.2504.15752 · pith_short_12: P744DQFU62FO · pith_short_16: P744DQFU62FOT7S6 · pith_short_8: P744DQFU

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/P744DQFU62FOT7S6ZWBA5QM2BN \
  | 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: 7ff9c1c0b4f68ae9fe5ecd820ec19a0b70df5c81e79adc2ee7e04574f8643621

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5713829722ca86cc0957953b52c74e5d89922cc5bdac37769f0c75be2de1590e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2025-04-22T09:56:28Z",
    "title_canon_sha256": "aa1e6adacbdb950ca0e555feb45978270a817a35f6b88f6a9eaa006bc31db402"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.15752",
    "kind": "arxiv",
    "version": 3
  }
}