Pith Number

pith:KUDDFCCA

pith:2013:KUDDFCCALSM3XN2PQOIENFVGBK

not attested not anchored not stored refs pending

Metric Entropy of Nonautonomous Dynamical Systems

Christoph Kawan

arxiv:1304.5682 v2 · 2013-04-21 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KUDDFCCALSM3XN2PQOIENFVGBK}

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	2026-05-18T00:56:52.070492Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55063288405c99bbb74f83904696a60a867ac867d26f24e7a6344de42a2d7e5f

Aliases

arxiv: 1304.5682 · arxiv_version: 1304.5682v2 · doi: 10.48550/arxiv.1304.5682 · pith_short_12: KUDDFCCALSM3 · pith_short_16: KUDDFCCALSM3XN2P · pith_short_8: KUDDFCCA

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/KUDDFCCALSM3XN2PQOIENFVGBK \
  | 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: 55063288405c99bbb74f83904696a60a867ac867d26f24e7a6344de42a2d7e5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13d1a81581b9c627e4b007ad8f18c7e90eb8a1d96ad229093c25dbe19e0eb0f7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2013-04-21T02:02:06Z",
    "title_canon_sha256": "6aede68cbc53b8c7d115fe0eb45386de4e255f58ccd26a2676156c0b8107033e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.5682",
    "kind": "arxiv",
    "version": 2
  }
}