Pith Number

pith:N4DRR5WB

pith:2013:N4DRR5WB6DNFGHRBNALRBEKNYQ

not attested not anchored not stored refs pending

Data Fusion by Matrix Factorization

Bla\v{z} Zupan, Marinka \v{Z}itnik

arxiv:1307.0803 v2 · 2013-07-02 · cs.LG · cs.AI · cs.DB · 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{N4DRR5WB6DNFGHRBNALRBEKNYQ}

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	2026-05-18T02:27:51.298275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f0718f6c1f0da531e21681710914dc423b7ea20b07371c037f0878d05bb71f5

Aliases

arxiv: 1307.0803 · arxiv_version: 1307.0803v2 · doi: 10.48550/arxiv.1307.0803 · pith_short_12: N4DRR5WB6DNF · pith_short_16: N4DRR5WB6DNFGHRB · pith_short_8: N4DRR5WB

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/N4DRR5WB6DNFGHRBNALRBEKNYQ \
  | 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: 6f0718f6c1f0da531e21681710914dc423b7ea20b07371c037f0878d05bb71f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79ae8cd2907a051b7b2fea39d4a1858e74cbc7b9980581ee892c5c50d2f897f1",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.DB",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-07-02T19:35:21Z",
    "title_canon_sha256": "54dc145ff8d5136c21d393c5d4c62da46dbb7b208b9cd6c8593a96397517a48d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.0803",
    "kind": "arxiv",
    "version": 2
  }
}