Pith Number

pith:DDFXJ4ZH

pith:2019:DDFXJ4ZH3M4IYN6RMT3JUFOJHX

not attested not anchored not stored refs pending

Learning Multimorbidity Patterns from Electronic Health Records Using Non-negative Matrix Factorisation

Abdelaali Hassaine, Dexter Canoy, Gholamreza Salimi-Khorshidi, Jose Roberto Ayala Solares, Kazem Rahimi, Mariagrazia Zottoli, Shishir Rao, Yajie Zhu, Yikuan Li

arxiv:1907.08577 v2 · 2019-07-19 · stat.ML · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DDFXJ4ZH3M4IYN6RMT3JUFOJHX}

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	2026-07-05T00:20:01.245629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18cb74f327db388c37d164f69a15c93dc64870b881e55b4f1b5192bec2ac682b

Aliases

arxiv: 1907.08577 · arxiv_version: 1907.08577v2 · doi: 10.48550/arxiv.1907.08577 · pith_short_12: DDFXJ4ZH3M4I · pith_short_16: DDFXJ4ZH3M4IYN6R · pith_short_8: DDFXJ4ZH

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/DDFXJ4ZH3M4IYN6RMT3JUFOJHX \
  | 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: 18cb74f327db388c37d164f69a15c93dc64870b881e55b4f1b5192bec2ac682b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1260b90c9c5ec93adf6de3051df9eae5d42559876e0b294019fc36234396f9e0",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2019-07-19T17:03:44Z",
    "title_canon_sha256": "ef0363363fe51506e5c8e7f9927a1727340a388cf6e5903ec711bd5ed561d516"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.08577",
    "kind": "arxiv",
    "version": 2
  }
}