Pith Number

pith:JPEJJPZE

pith:2009:JPEJJPZET3N5QPCQCDZOSFWH37

not attested not anchored not stored refs pending

Intrinsic dynamics of heart regulatory systems on short time-scales: from experiment to modelling

A. Stefanovska, I.A. Khovanov, N.A. Khovanova, P.V.E. McClintock

arxiv:0912.2237 v1 · 2009-12-11 · physics.bio-ph · physics.data-an · physics.med-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JPEJJPZET3N5QPCQCDZOSFWH37}

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	2026-05-18T02:10:24.460028Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bc894bf249edbd83c5010f2e916c7dfcf492c8f60864fc33a4c0f639d1ea92d

Aliases

arxiv: 0912.2237 · arxiv_version: 0912.2237v1 · doi: 10.48550/arxiv.0912.2237 · pith_short_12: JPEJJPZET3N5 · pith_short_16: JPEJJPZET3N5QPCQ · pith_short_8: JPEJJPZE

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/JPEJJPZET3N5QPCQCDZOSFWH37 \
  | 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: 4bc894bf249edbd83c5010f2e916c7dfcf492c8f60864fc33a4c0f639d1ea92d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35389e46158cdd38a5ec95a1f422e12d187973fd4d26ee36afc1cfde1e2d6aff",
    "cross_cats_sorted": [
      "physics.data-an",
      "physics.med-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2009-12-11T14:32:30Z",
    "title_canon_sha256": "bab0f2e88869b9e7ed07544fc24abf31531ab71c79e9a2a4861c59e052f92fc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2237",
    "kind": "arxiv",
    "version": 1
  }
}