Pith Number

pith:3LF5USII

pith:2019:3LF5USIIOKQLRXDXXG2X3K7QRV

not attested not anchored not stored refs pending

An Enhanced Electrocardiogram Biometric Authentication System Using Machine Learning

Chan Yeob Yeun, Ebrahim Al Alkeem, Kin Poon, M. Jamal Zemerly, Paul D. Yoo, Song-Kyoo Kim

arxiv:1907.00366 v2 · 2019-06-30 · cs.CR · cs.LG · eess.SP · 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{3LF5USIIOKQLRXDXXG2X3K7QRV}

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	2026-07-05T00:06:47.684077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dacbda490872a0b8dc77b9b57dabf08d5f821ef1a107ff506f4750a150bd1208

Aliases

arxiv: 1907.00366 · arxiv_version: 1907.00366v2 · doi: 10.48550/arxiv.1907.00366 · pith_short_12: 3LF5USIIOKQL · pith_short_16: 3LF5USIIOKQLRXDX · pith_short_8: 3LF5USII

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/3LF5USIIOKQLRXDXXG2X3K7QRV \
  | 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: dacbda490872a0b8dc77b9b57dabf08d5f821ef1a107ff506f4750a150bd1208

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bf09ebbf1b3acdf6fecee15ec7119caed6783f3bc7794603e0ded2726f1cca1",
    "cross_cats_sorted": [
      "cs.LG",
      "eess.SP",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2019-06-30T11:10:35Z",
    "title_canon_sha256": "3ab5bac267d6006817550c396aab697ccb1ba94ff0e0e2a805278860fb90f0fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.00366",
    "kind": "arxiv",
    "version": 2
  }
}