Pith Number

pith:WM2W4JER

pith:2004:WM2W4JER45AAC2RXW34XSQHEKU

not attested not anchored not stored refs pending

Scaling and wavelet-based analyses of the long-term heart rate variability of the Eastern Oyster

J. G. Contreras, J. J. Alvarado-Gil, P. A. Ritto

arxiv:physics/0411087 v2 · 2004-11-08 · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WM2W4JER45AAC2RXW34XSQHEKU}

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	2026-05-18T04:29:43.883523Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3356e2491e740016a37b6f97940e455267e80ab8a9b556cce29336dfbf88f5d

Aliases

arxiv: physics/0411087 · arxiv_version: physics/0411087v2 · doi: 10.48550/arxiv.physics/0411087 · pith_short_12: WM2W4JER45AA · pith_short_16: WM2W4JER45AAC2RX · pith_short_8: WM2W4JER

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/WM2W4JER45AAC2RXW34XSQHEKU \
  | 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: b3356e2491e740016a37b6f97940e455267e80ab8a9b556cce29336dfbf88f5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90374de442258503d41bf85251d4d6887b926fe7c0cc8d255874ae3d892cb406",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.data-an",
    "submitted_at": "2004-11-08T16:35:58Z",
    "title_canon_sha256": "de1350dd561b3d1088e5a01d8ac606d3b69fa11ba0f4342b958e4ebabd9ae1b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0411087",
    "kind": "arxiv",
    "version": 2
  }
}