Pith Number

pith:2LBBTVES

pith:1999:2LBBTVESLI4QCDKFV22KRWNJXZ

not attested not anchored not stored refs pending

Kullback-Leibler and Renormalized Entropy: Applications to EEGs of Epilepsy Patients

J. Arnhold, K. Lehnertz, P. Grassberger, R. Quian Quiroga

arxiv:physics/9909017 v2 · 1999-09-09 · physics.bio-ph · chao-dyn · cond-mat · nlin.CD · physics.comp-ph · physics.data-an · physics.med-ph · 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{2LBBTVESLI4QCDKFV22KRWNJXZ}

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	2026-05-18T01:05:15.474829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2c219d4925a39010d45aeb4a8d9a9be5c1081f7d052eaa21a6d7976964f991e

Aliases

arxiv: physics/9909017 · arxiv_version: physics/9909017v2 · doi: 10.48550/arxiv.physics/9909017 · pith_short_12: 2LBBTVESLI4Q · pith_short_16: 2LBBTVESLI4QCDKF · pith_short_8: 2LBBTVES

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/2LBBTVESLI4QCDKFV22KRWNJXZ \
  | 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: d2c219d4925a39010d45aeb4a8d9a9be5c1081f7d052eaa21a6d7976964f991e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ad01106412e6373c19c0840614af16061239772d3a1c20ed22e52e237a9cf20",
    "cross_cats_sorted": [
      "chao-dyn",
      "cond-mat",
      "nlin.CD",
      "physics.comp-ph",
      "physics.data-an",
      "physics.med-ph",
      "q-bio"
    ],
    "license": "",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "1999-09-09T12:47:47Z",
    "title_canon_sha256": "51e2c94d3c0543f40acc0c9d8100d5c2db8aaa306c7ca2c4237e73d1659a14dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/9909017",
    "kind": "arxiv",
    "version": 2
  }
}