Pith Number

pith:QY5EAEGW

pith:2016:QY5EAEGW6JKZX5Y45LMZBJE73T

not attested not anchored not stored refs pending

Predictive Hierarchical Clustering: Learning clusters of CPT codes for improving surgical outcomes

Elizabeth C. Lorenzi, Katherine Heller, Stephanie L. Brown, Zhifei Sun

arxiv:1604.07031 v2 · 2016-04-24 · stat.ME · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QY5EAEGW6JKZX5Y45LMZBJE73T}

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	2026-05-18T00:38:46.620834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

863a4010d6f2559bf71cead990a49fdcdd8425e91b36a13eba67e0a0c35c7325

Aliases

arxiv: 1604.07031 · arxiv_version: 1604.07031v2 · doi: 10.48550/arxiv.1604.07031 · pith_short_12: QY5EAEGW6JKZ · pith_short_16: QY5EAEGW6JKZX5Y4 · pith_short_8: QY5EAEGW

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/QY5EAEGW6JKZX5Y45LMZBJE73T \
  | 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: 863a4010d6f2559bf71cead990a49fdcdd8425e91b36a13eba67e0a0c35c7325

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04e72ba85e41d6c92c8661955df465b09baf791da9b5493d7fbe1ecf05904f73",
    "cross_cats_sorted": [
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2016-04-24T13:49:23Z",
    "title_canon_sha256": "a3a6b0f6b0740473ffbb411bc679ed9ac5d6e5c7d6fc2a7763426a9dfce7ebc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.07031",
    "kind": "arxiv",
    "version": 2
  }
}