Pith Number

pith:U4BDV34E

pith:2019:U4BDV34E2TTQUX2NDW3P7IDY6G

not attested not anchored not stored refs pending

Understanding Spatial Language in Radiology: Representation Framework, Annotation, and Spatial Relation Extraction from Chest X-ray Reports using Deep Learning

Dina Demner-Fushman, Kirk Roberts, Laritza Rodriguez, Sonya E Shooshan, Surabhi Datta, Yuqi Si

arxiv:1908.04485 v1 · 2019-08-13 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U4BDV34E2TTQUX2NDW3P7IDY6G}

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	2026-07-04T23:55:14.073107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7023aef84d4e70a5f4d1db6ffa078f195f63fa454ea51bf80e086f08d610a63

Aliases

arxiv: 1908.04485 · arxiv_version: 1908.04485v1 · doi: 10.48550/arxiv.1908.04485 · pith_short_12: U4BDV34E2TTQ · pith_short_16: U4BDV34E2TTQUX2N · pith_short_8: U4BDV34E

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/U4BDV34E2TTQUX2NDW3P7IDY6G \
  | 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: a7023aef84d4e70a5f4d1db6ffa078f195f63fa454ea51bf80e086f08d610a63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6897887c1f6838cbe81b2e825b8136de3a10f62e754ca41ee1c8ecccbf594062",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-08-13T04:44:22Z",
    "title_canon_sha256": "a773c0e001a6eb8f14f56820dca52f1dd9eb63e584ae0b7f5dcea99d3db75e61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04485",
    "kind": "arxiv",
    "version": 1
  }
}