Pith Number

pith:UFDL4TRK

pith:2020:UFDL4TRKAMRQAFRKXROAHUR3SS

not attested not anchored not stored refs pending

Deep Learning-based Four-region Lung Segmentation in Chest Radiography for COVID-19 Diagnosis

Byung Seok Kim, Dufan Wu, Hui Ren, Jung Gil Park, Kyungsang Kim, Mannudeep K. Kalra, Min Kyu Kang, Quanzheng Li, Soo Young Park, Won Young Tak, Woo Jin Chung, Young-Gon Kim, Yu Rim Lee

arxiv:2009.12610 v1 · 2020-09-26 · eess.IV · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UFDL4TRKAMRQAFRKXROAHUR3SS}

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	2026-07-05T01:38:21.824419Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a146be4e2a032300162abc5c03d23b94b0b11f3aebfcd7dbfbc580628dbcaf62

Aliases

arxiv: 2009.12610 · arxiv_version: 2009.12610v1 · doi: 10.48550/arxiv.2009.12610 · pith_short_12: UFDL4TRKAMRQ · pith_short_16: UFDL4TRKAMRQAFRK · pith_short_8: UFDL4TRK

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/UFDL4TRKAMRQAFRKXROAHUR3SS \
  | 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: a146be4e2a032300162abc5c03d23b94b0b11f3aebfcd7dbfbc580628dbcaf62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5078edcf91b636b239ed8b3f032c449c0b032045ad8c398a6d09758c647f9211",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2020-09-26T14:32:13Z",
    "title_canon_sha256": "e5e747e5924a09a82afeacd1105c6d1defdc09a04ed1c7532536b9c3580b8801"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.12610",
    "kind": "arxiv",
    "version": 1
  }
}