Pith Number

pith:4ZALQAHJ

pith:2019:4ZALQAHJ6MS3W7GNOGP5ZYCRH7

not attested not anchored not stored refs pending

Escaping Saddle Points with Adaptive Gradient Methods

Matthew Staib, Sanjiv Kumar, Sashank J. Reddi, Satyen Kale, Suvrit Sra

arxiv:1901.09149 v2 · 2019-01-26 · cs.LG · math.OC · 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{4ZALQAHJ6MS3W7GNOGP5ZYCRH7}

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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

2 papers in Pith

Adaptive Federated Optimization

Dimension-Free Saddle-Point Escape in Muon

Receipt and verification

First computed	2026-07-05T00:37:43.998704Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e640b800e9f325bb7ccd719fdce0513ff81a50cb94e82c791e5b48ece137f564

Aliases

arxiv: 1901.09149 · arxiv_version: 1901.09149v2 · doi: 10.48550/arxiv.1901.09149 · pith_short_12: 4ZALQAHJ6MS3 · pith_short_16: 4ZALQAHJ6MS3W7GN · pith_short_8: 4ZALQAHJ

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/4ZALQAHJ6MS3W7GNOGP5ZYCRH7 \
  | 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: e640b800e9f325bb7ccd719fdce0513ff81a50cb94e82c791e5b48ece137f564

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13d3ea94ed91ca6a6fa07f9ac831e3699a27bb2b78f18db5da4c1a903572844a",
    "cross_cats_sorted": [
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-01-26T03:12:14Z",
    "title_canon_sha256": "10a6c0db9bcbb7fa04b899f99b117f97c55a4c27a1e3a09bb15e8a9d236f7a5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.09149",
    "kind": "arxiv",
    "version": 2
  }
}