Pith Number

pith:YIUZCFHY

pith:2019:YIUZCFHY7AXHAY3LWCJUNVXXR6

not attested not anchored not stored refs pending

A Key to Your Heart: Biometric Authentication Based on ECG Signals

Donald Sannella, Nikita Samarin

arxiv:1906.09181 v1 · 2019-06-21 · cs.CR · cs.SY · eess.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YIUZCFHY7AXHAY3LWCJUNVXXR6}

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	2026-05-17T23:42:44.257300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2299114f8f82e70636bb09346d6f78f8ddfc56a813fe31f23bffa06f5c0551b

Aliases

arxiv: 1906.09181 · arxiv_version: 1906.09181v1 · doi: 10.48550/arxiv.1906.09181 · pith_short_12: YIUZCFHY7AXH · pith_short_16: YIUZCFHY7AXHAY3L · pith_short_8: YIUZCFHY

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/YIUZCFHY7AXHAY3LWCJUNVXXR6 \
  | 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: c2299114f8f82e70636bb09346d6f78f8ddfc56a813fe31f23bffa06f5c0551b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1cd7842485da45aa338f6b43f96a13a454a8dde1fae7a24506ed161e5b31d54",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2019-06-21T15:04:23Z",
    "title_canon_sha256": "328e4f3cafc88f035d13bf2ea0f98ca1d93be100497e683932736c21b6618f00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.09181",
    "kind": "arxiv",
    "version": 1
  }
}