Pith Number

pith:ZWMJJRBE

pith:2019:ZWMJJRBERURJYEDDAIFQJ55FPG

not attested not anchored not stored refs pending

Sharp Analysis for Nonconvex SGD Escaping from Saddle Points

Cong Fang, Tong Zhang, Zhouchen Lin

arxiv:1902.00247 v2 · 2019-02-01 · math.OC · cs.CC · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZWMJJRBERURJYEDDAIFQJ55FPG}

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.

Cited by

3 papers in Pith

Distributed Learning in Non-Convex Environments -- Part I: Agreement at a Linear Rate

Distributed Learning in Non-Convex Environments -- Part II: Polynomial Escape from Saddle-Points

Accelerated Gradient Methods for Nonconvex Optimization: Escape Trajectories From Strict Saddle Points and Convergence to Local Minima

Receipt and verification

First computed	2026-05-17T23:44:21.738174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd9894c4248d229c1063020b04f7a579bb32ca1159d8ad0ac7c7966afa4ead75

Aliases

arxiv: 1902.00247 · arxiv_version: 1902.00247v2 · doi: 10.48550/arxiv.1902.00247 · pith_short_12: ZWMJJRBERURJ · pith_short_16: ZWMJJRBERURJYEDD · pith_short_8: ZWMJJRBE

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/ZWMJJRBERURJYEDDAIFQJ55FPG \
  | 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: cd9894c4248d229c1063020b04f7a579bb32ca1159d8ad0ac7c7966afa4ead75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "baa4554de493be485f7aa3ee6be7dabde73332e57ab3dacf46a7608e4ff21a43",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-02-01T09:35:27Z",
    "title_canon_sha256": "55b0b75926211ceef396d23584e9f660a1799bce80fa2132b44ad55ae27223da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.00247",
    "kind": "arxiv",
    "version": 2
  }
}