Pith Number

pith:GTPHT3O2

pith:2019:GTPHT3O25K4UK5HQOV37RESHCM

not attested not anchored not stored refs pending

Perturbed Proximal Descent to Escape Saddle Points for Non-convex and Non-smooth Objective Functions

Stephen Becker, Zhishen Huang

arxiv:1901.08958 v1 · 2019-01-24 · 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{GTPHT3O25K4UK5HQOV37RESHCM}

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	2026-07-04T23:52:41.612659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34de79eddaeab94574f07577f892471329435d29480e148a40cf4ea606008c34

Aliases

arxiv: 1901.08958 · arxiv_version: 1901.08958v1 · doi: 10.48550/arxiv.1901.08958 · pith_short_12: GTPHT3O25K4U · pith_short_16: GTPHT3O25K4UK5HQ · pith_short_8: GTPHT3O2

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/GTPHT3O25K4UK5HQOV37RESHCM \
  | 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: 34de79eddaeab94574f07577f892471329435d29480e148a40cf4ea606008c34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc887654c163f5e95c493e7a7972e79601a08e2add5f6fc128897c54475c734b",
    "cross_cats_sorted": [
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-01-24T18:58:12Z",
    "title_canon_sha256": "b2249d88538622f029838f3c158483185edc219b426cfc9d07d399b6f756aedd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.08958",
    "kind": "arxiv",
    "version": 1
  }
}