Pith Number

pith:L3YJDNN3

pith:2001:L3YJDNN346VO6HJ4YGKHPN76VT

not attested not anchored not stored refs pending

Zipf's law in human heartbeat dynamics

J. Kalda, M. Laan, M. Sakki, M. Vainu

arxiv:physics/0110075 v1 · 2001-10-26 · physics.med-ph · physics.data-an · q-bio

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L3YJDNN346VO6HJ4YGKHPN76VT}

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	2026-07-04T14:43:29.966863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ef091b5bbe7aaef1d3cc19477b7feacd813fe2b448898be62910bb21e93de6b

Aliases

arxiv: physics/0110075 · arxiv_version: physics/0110075v1 · doi: 10.48550/arxiv.physics/0110075 · pith_short_12: L3YJDNN346VO · pith_short_16: L3YJDNN346VO6HJ4 · pith_short_8: L3YJDNN3

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/L3YJDNN346VO6HJ4YGKHPN76VT \
  | 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: 5ef091b5bbe7aaef1d3cc19477b7feacd813fe2b448898be62910bb21e93de6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "298fd7edfdbae303e60b9a72a1b092135d95eaba725ae38cab6df7c558845aa0",
    "cross_cats_sorted": [
      "physics.data-an",
      "q-bio"
    ],
    "license": "",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2001-10-26T18:08:01Z",
    "title_canon_sha256": "17b8b5fadf19efe1bd1aa02d9c3f03a6e2f5b51b46fa113a92b6f1d1fc045e8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0110075",
    "kind": "arxiv",
    "version": 1
  }
}