Pith Number

pith:4PYQIVUW

pith:2019:4PYQIVUW2UBUEJUSPS6ARUQ73T

not attested not anchored not stored refs pending

Understanding Top-k Sparsification in Distributed Deep Learning

Ka Chun Cheung, Shaohuai Shi, Simon See, Xiaowen Chu

arxiv:1911.08772 v1 · 2019-11-20 · cs.LG · cs.DC · 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{4PYQIVUW2UBUEJUSPS6ARUQ73T}

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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

1 paper in Pith

ZipCCL: Efficient Lossless Data Compression of Communication Collectives for Accelerating LLM Training

Receipt and verification

First computed	2026-07-05T00:20:45.365558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3f1045696d5034226927cbc08d21fdcd29682d93c0f0b8876fd39af6918d275

Aliases

arxiv: 1911.08772 · arxiv_version: 1911.08772v1 · doi: 10.48550/arxiv.1911.08772 · pith_short_12: 4PYQIVUW2UBU · pith_short_16: 4PYQIVUW2UBUEJUS · pith_short_8: 4PYQIVUW

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/4PYQIVUW2UBUEJUSPS6ARUQ73T \
  | 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: e3f1045696d5034226927cbc08d21fdcd29682d93c0f0b8876fd39af6918d275

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32ec828738853c78a75644a6ca268994f8edffa2dbe5c03257988c2e26a8b44b",
    "cross_cats_sorted": [
      "cs.DC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-11-20T08:50:59Z",
    "title_canon_sha256": "25d14fc1ebcdc0bfa12c83db11fecbcfb48bca8a936c696e013a0ebe94cb48ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.08772",
    "kind": "arxiv",
    "version": 1
  }
}