Pith Number

pith:UVIADWK2

pith:2020:UVIADWK2PDML55POD6GG44IOLK

not attested not anchored not stored refs pending

Federated Matrix Factorization: Algorithm Design and Application to Data Clustering

Shuai Wang, Tsung-Hui Chang

arxiv:2002.04930 v2 · 2020-02-12 · cs.LG · cs.DC · 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{UVIADWK2PDML55POD6GG44IOLK}

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	2026-07-05T01:47:43.041207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a55001d95a78d8bef5ee1f8c6e710e5a96a4d6f8450ddd25d6b5cd5a5a292bc7

Aliases

arxiv: 2002.04930 · arxiv_version: 2002.04930v2 · doi: 10.48550/arxiv.2002.04930 · pith_short_12: UVIADWK2PDML · pith_short_16: UVIADWK2PDML55PO · pith_short_8: UVIADWK2

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/UVIADWK2PDML55POD6GG44IOLK \
  | 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: a55001d95a78d8bef5ee1f8c6e710e5a96a4d6f8450ddd25d6b5cd5a5a292bc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc8b6caf2cd27b4467effdef5977f7bb09f4cfbc0f15266abb85b348ff634f30",
    "cross_cats_sorted": [
      "cs.DC",
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-02-12T11:48:54Z",
    "title_canon_sha256": "417d96bc47ee746f40ab1ba71b1963cf5db8bae34fd482860fec03a92926d06e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.04930",
    "kind": "arxiv",
    "version": 2
  }
}