Pith Number

pith:V6TOEFMW

pith:2021:V6TOEFMWDGYGKBFHPCLFEJDFAU

not attested not anchored not stored refs pending

A Hybrid Variance-Reduced Method for Decentralized Stochastic Non-Convex Optimization

Ran Xin, Soummya Kar, Usman A. Khan

arxiv:2102.06752 v2 · 2021-02-12 · math.OC · cs.DC · cs.LG · cs.MA · 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{V6TOEFMWDGYGKBFHPCLFEJDFAU}

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	2026-07-05T02:48:59.633904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

afa6e2159619b06504a77896522465051a82feb620f8b35909ac59b7a5fbe6e1

Aliases

arxiv: 2102.06752 · arxiv_version: 2102.06752v2 · doi: 10.48550/arxiv.2102.06752 · pith_short_12: V6TOEFMWDGYG · pith_short_16: V6TOEFMWDGYGKBFH · pith_short_8: V6TOEFMW

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/V6TOEFMWDGYGKBFHPCLFEJDFAU \
  | 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: afa6e2159619b06504a77896522465051a82feb620f8b35909ac59b7a5fbe6e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "548a964bb69dd6dff64c080b9da940ee20bf35dac943b63b0c5e927bf55d40ef",
    "cross_cats_sorted": [
      "cs.DC",
      "cs.LG",
      "cs.MA",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2021-02-12T20:13:05Z",
    "title_canon_sha256": "7688dae7f16346b00b236306d3fa4b75c1ab5f1e7e95e48d62a28c23334467ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.06752",
    "kind": "arxiv",
    "version": 2
  }
}