Pith Number

pith:IE2JNNNH

pith:2017:IE2JNNNHAPWQ43M2WREQUAXOHU

not attested not anchored not stored refs pending

Efficient fetal-maternal ECG signal separation from two channel maternal abdominal ECG via diffusion-based channel selection

Hau-Tieng Wu, Martin G. Frasch, Ruilin Li

arxiv:1702.02025 v1 · 2017-02-07 · physics.med-ph · physics.data-an · stat.AP · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IE2JNNNHAPWQ43M2WREQUAXOHU}

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	2026-05-18T00:51:10.570683Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

413496b5a703ed0e6d9ab4490a02ee3d3060c6042b98a1b8fb89a041a1baf099

Aliases

arxiv: 1702.02025 · arxiv_version: 1702.02025v1 · doi: 10.48550/arxiv.1702.02025 · pith_short_12: IE2JNNNHAPWQ · pith_short_16: IE2JNNNHAPWQ43M2 · pith_short_8: IE2JNNNH

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/IE2JNNNHAPWQ43M2WREQUAXOHU \
  | 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: 413496b5a703ed0e6d9ab4490a02ee3d3060c6042b98a1b8fb89a041a1baf099

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfe46386db66a3630d01d43f5fe88e20fd228551ee347c57b95ebbe7be5ce887",
    "cross_cats_sorted": [
      "physics.data-an",
      "stat.AP",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2017-02-07T14:06:58Z",
    "title_canon_sha256": "70acbbf02ee23c61065644ed95f8c87cdc45f331aefcc0fc3e261b9d08c05284"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.02025",
    "kind": "arxiv",
    "version": 1
  }
}