Pith Number

pith:C4CBRIK7

pith:2017:C4CBRIK7YSWMK4NIKKZEIMCLHH

not attested not anchored not stored refs pending

Predicting Surgery Duration from a New Perspective: Evaluation from a Database on Thoracic Surgery

Hainan Guo, Javier Cabrera, Jin Wang, John B. Kostis, Kwok-Leung Tsui, Monique Bakker

arxiv:1712.07809 v1 · 2017-12-21 · 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{C4CBRIK7YSWMK4NIKKZEIMCLHH}

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	2026-05-18T00:27:29.749673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

170418a15fc4acc571a852b244304b39ef6ece820a10f0085d578135ee425de0

Aliases

arxiv: 1712.07809 · arxiv_version: 1712.07809v1 · doi: 10.48550/arxiv.1712.07809 · pith_short_12: C4CBRIK7YSWM · pith_short_16: C4CBRIK7YSWMK4NI · pith_short_8: C4CBRIK7

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/C4CBRIK7YSWMK4NIKKZEIMCLHH \
  | 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: 170418a15fc4acc571a852b244304b39ef6ece820a10f0085d578135ee425de0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "851445db037fb2822e4e6c5be7cf0158f87bab895bb63be23d8bc02b6fcaff16",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2017-12-21T06:31:03Z",
    "title_canon_sha256": "12f9981a3be747a9ffa904acb52338b3159cb96619f36305880ec10885d12934"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.07809",
    "kind": "arxiv",
    "version": 1
  }
}