Pith Number

pith:HBBFO5HD

pith:2019:HBBFO5HD2NQOQLSPHRLXBE7NI6

not attested not anchored not stored refs pending

Simple Stochastic Gradient Methods for Non-Smooth Non-Convex Regularized Optimization

Akiko Takeda, Michael R. Metel

arxiv:1901.08369 v2 · 2019-01-24 · 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{HBBFO5HD2NQOQLSPHRLXBE7NI6}

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	2026-05-17T23:46:18.766078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38425774e3d360e82e4f3c577093ed47b6b7af77aada1d5f6bdcef59ab390eac

Aliases

arxiv: 1901.08369 · arxiv_version: 1901.08369v2 · doi: 10.48550/arxiv.1901.08369 · pith_short_12: HBBFO5HD2NQO · pith_short_16: HBBFO5HD2NQOQLSP · pith_short_8: HBBFO5HD

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/HBBFO5HD2NQOQLSPHRLXBE7NI6 \
  | 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: 38425774e3d360e82e4f3c577093ed47b6b7af77aada1d5f6bdcef59ab390eac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc602aeadbf885e64c8e860af10fc40fc1907095823863ae48ce4ef376070895",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-01-24T11:56:59Z",
    "title_canon_sha256": "832eeb037e8b59b93e436ae00c2579703f7d816e80c6703b0194336d2b9710bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.08369",
    "kind": "arxiv",
    "version": 2
  }
}