Pith Number

pith:4OA56NW3

pith:2019:4OA56NW3OYJGXLZAFIKCDZ3ZJI

not attested not anchored not stored refs pending

Communication-Censored Distributed Stochastic Gradient Descent

Liping Li, Qing Ling, Tianyi Chen, Weiyu Li, Zhaoxian Wu

arxiv:1909.03631 v2 · 2019-09-09 · stat.ML · cs.LG · 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{4OA56NW3OYJGXLZAFIKCDZ3ZJI}

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	2026-07-05T00:29:28.938078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e381df36db76126baf202a1421e7794a15108cf985b1fc071a5a3f0018bfc9b3

Aliases

arxiv: 1909.03631 · arxiv_version: 1909.03631v2 · doi: 10.48550/arxiv.1909.03631 · pith_short_12: 4OA56NW3OYJG · pith_short_16: 4OA56NW3OYJGXLZA · pith_short_8: 4OA56NW3

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/4OA56NW3OYJGXLZAFIKCDZ3ZJI \
  | 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: e381df36db76126baf202a1421e7794a15108cf985b1fc071a5a3f0018bfc9b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89b80c17166c9920d841c55698653df7d749949df2d00d58e9b3f301f0296b10",
    "cross_cats_sorted": [
      "cs.LG",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2019-09-09T04:27:57Z",
    "title_canon_sha256": "905cab32aa382c7a1ce12ee2dc1c6ab595365eaf67c37df2b55aac318ac3927c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.03631",
    "kind": "arxiv",
    "version": 2
  }
}