Pith Number

pith:W4JB3CQP

pith:2020:W4JB3CQPEJYZZQCWV2QEHQYCWU

not attested not anchored not stored refs pending

Sensitivity and Specificity Evaluation of Deep Learning Models for Detection of Pneumoperitoneum on Chest Radiographs

Jessica M. Sin, Judith Austin-Strohbehn, Karen Rodriguez, Manu Goyal, Saeed Hassanpour, Sean J. Sun, Yvonne Y. Cheung

arxiv:2010.08872 v1 · 2020-10-17 · eess.IV · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W4JB3CQPEJYZZQCWV2QEHQYCWU}

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	2026-07-05T01:45:31.181332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7121d8a0f22719cc056aea043c302b50f55785488bebf7e257d12d0ff97ca38

Aliases

arxiv: 2010.08872 · arxiv_version: 2010.08872v1 · doi: 10.48550/arxiv.2010.08872 · pith_short_12: W4JB3CQPEJYZ · pith_short_16: W4JB3CQPEJYZZQCW · pith_short_8: W4JB3CQP

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/W4JB3CQPEJYZZQCWV2QEHQYCWU \
  | 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: b7121d8a0f22719cc056aea043c302b50f55785488bebf7e257d12d0ff97ca38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11c693d37c87a13df633d8cc6af0e1c64bcd0312963f24669c7d7a4a43cc6714",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2020-10-17T21:41:53Z",
    "title_canon_sha256": "387ed86b7c040a57413cf785838f85657ee0ef8c99e26727526a43d92dc91896"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.08872",
    "kind": "arxiv",
    "version": 1
  }
}