Pith Number

pith:BXR44BYX

pith:2019:BXR44BYX7QJYUE4NG2BGVT7ISB

not attested not anchored not stored refs pending

Computation of the largest Lyapunov exponent using recursive estimation with variable factor

E. A. Sousa, E. G. Nepomuceno, M. F. S. Barroso

arxiv:1908.10789 v1 · 2019-08-19 · math.NA · cs.NA · cs.SY · eess.SP · eess.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BXR44BYX7QJYUE4NG2BGVT7ISB}

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	2026-07-05T00:00:21.264108Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0de3ce0717fc138a138d36826acfe8906b40314b3a1e6db97209f5adec8bce5b

Aliases

arxiv: 1908.10789 · arxiv_version: 1908.10789v1 · doi: 10.48550/arxiv.1908.10789 · pith_short_12: BXR44BYX7QJY · pith_short_16: BXR44BYX7QJYUE4N · pith_short_8: BXR44BYX

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/BXR44BYX7QJYUE4NG2BGVT7ISB \
  | 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: 0de3ce0717fc138a138d36826acfe8906b40314b3a1e6db97209f5adec8bce5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67e58d24e68603c9174a79512fb0dbeae0da9cc276e243ef835ceaa960b562ad",
    "cross_cats_sorted": [
      "cs.NA",
      "cs.SY",
      "eess.SP",
      "eess.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-08-19T13:07:41Z",
    "title_canon_sha256": "91999c56a3c6b7708a073756cbc28dca9bb560e57a343b4eb7edf60a87b05761"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.10789",
    "kind": "arxiv",
    "version": 1
  }
}