Pith Number

pith:23CH4BQL

pith:2017:23CH4BQLY4WKLZOZMS666GL4L3

not attested not anchored not stored refs pending

Comparison of machine learning methods for classifying mediastinal lymph node metastasis of non-small cell lung cancer from 18F-FDG PET/CT images

Hongkai Wang, Lijuan Yu, Peiou Lu, Wanyu Liu, Wenzhi Wang, Yingci Li, Zhonghua Chen, Zongwei Zhou

arxiv:1702.02223 v1 · 2017-02-07 · cs.CV · physics.med-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{23CH4BQLY4WKLZOZMS666GL4L3}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:51:06.468471Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6c47e060bc72ca5e5d964bdef197c5ef73bb64ab56fc5448466a57c83373f2e

Aliases

arxiv: 1702.02223 · arxiv_version: 1702.02223v1 · doi: 10.48550/arxiv.1702.02223 · pith_short_12: 23CH4BQLY4WK · pith_short_16: 23CH4BQLY4WKLZOZ · pith_short_8: 23CH4BQL

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/23CH4BQLY4WKLZOZMS666GL4L3 \
  | 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: d6c47e060bc72ca5e5d964bdef197c5ef73bb64ab56fc5448466a57c83373f2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c5978b84ab314a3d51d022ad1222192c64a23c78847c58fcaec35ad14295424",
    "cross_cats_sorted": [
      "physics.med-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-02-07T23:12:45Z",
    "title_canon_sha256": "99641e438a656805d00a9fd4e713ca65461f9cf2aa8674779ca33231809ffe69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.02223",
    "kind": "arxiv",
    "version": 1
  }
}