Pith Number

pith:B2NWPIOB

pith:2025:B2NWPIOBFOL5QZXGTFN52ELFNF

not attested not anchored not stored refs pending

Simultaneous Polysomnography and Cardiotocography Reveal Temporal Correlation Between Maternal Obstructive Sleep Apnea and Fetal Hypoxia

Bing Zhou, Donglin Xie, Fang Han, Guoli Liu, Huijie Yi, Jingjing Yang, Jingying Ma, Jingyu Wang, Jun Wei, Linyan Zhang, Liyue Xu, Long Zhao, Mengling Feng, Rui Bai, Shenda Hong, Xiaosong Dong, Xueli Zhang, Yanan Liu, Yunliang Sun, Zelin Tu

arxiv:2504.13010 v1 · 2025-04-17 · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B2NWPIOBFOL5QZXGTFN52ELFNF}

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	2026-07-05T10:50:36.164220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e9b67a1c12b97d866e6995bdd1165695655f8f4b8c0c114ed6ee80d8175c97c

Aliases

arxiv: 2504.13010 · arxiv_version: 2504.13010v1 · doi: 10.48550/arxiv.2504.13010 · pith_short_12: B2NWPIOBFOL5 · pith_short_16: B2NWPIOBFOL5QZXG · pith_short_8: B2NWPIOB

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/B2NWPIOBFOL5QZXGTFN52ELFNF \
  | 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: 0e9b67a1c12b97d866e6995bdd1165695655f8f4b8c0c114ed6ee80d8175c97c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7131f0a409577fc075662aea7cd5566026b142fc948ea0e282ce6e172b5533f5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2025-04-17T15:17:14Z",
    "title_canon_sha256": "77558cbb11eead516957ce6ec9ebf48f1bed24344dc1d3b15d5e6199d8d32cf6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.13010",
    "kind": "arxiv",
    "version": 1
  }
}