Pith Number

pith:7TQP5ZDG

pith:2018:7TQP5ZDGF2YNQPYSAZOC4JA6MU

not attested not anchored not stored refs pending

A Simple Proximal Stochastic Gradient Method for Nonsmooth Nonconvex Optimization

Jian Li, Zhize Li

arxiv:1802.04477 v4 · 2018-02-13 · math.OC · cs.DS · 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{7TQP5ZDGF2YNQPYSAZOC4JA6MU}

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	2026-05-17T23:59:22.940189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fce0fee4662eb0d83f12065c2e241e6513ce74280d6823b4cb622b3f65e1610a

Aliases

arxiv: 1802.04477 · arxiv_version: 1802.04477v4 · doi: 10.48550/arxiv.1802.04477 · pith_short_12: 7TQP5ZDGF2YN · pith_short_16: 7TQP5ZDGF2YNQPYS · pith_short_8: 7TQP5ZDG

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/7TQP5ZDGF2YNQPYSAZOC4JA6MU \
  | 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: fce0fee4662eb0d83f12065c2e241e6513ce74280d6823b4cb622b3f65e1610a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05cfd05628b2088164d6002fa787ab3087a3346270230c14617685a2c0ad1384",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-02-13T06:34:22Z",
    "title_canon_sha256": "a6ece4e919bf66586794623b987033c7c31d57985bdf9d626aa648453d7284fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.04477",
    "kind": "arxiv",
    "version": 4
  }
}