Pith Number

pith:A4OPXB4L

pith:2023:A4OPXB4LPBJMQT4LGMMHC6PQGS

not attested not anchored not stored refs pending

A data driven Koopman-Schur decomposition for computational analysis of nonlinear dynamics

Igor Mezi\'c, Zlatko Drma\v{c}

arxiv:2312.15837 v2 · 2023-12-26 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A4OPXB4LPBJMQT4LGMMHC6PQGS}

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.

Cited by

2 papers in Pith

Residual Pseudospectra Reveal a Physics-Informed Koopman Backbone for Tropical Pacific Variability and ENSO Prediction

Wavelet-Based Observables for Koopman Analysis: An Extended Dynamic Mode Decomposition Framework

Receipt and verification

First computed	2026-07-05T09:06:56.564717Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

071cfb878b7852c84f8b33187179f034a7f4dd50cdfcf343a1817135111aeb33

Aliases

arxiv: 2312.15837 · arxiv_version: 2312.15837v2 · doi: 10.48550/arxiv.2312.15837 · pith_short_12: A4OPXB4LPBJM · pith_short_16: A4OPXB4LPBJMQT4L · pith_short_8: A4OPXB4L

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/A4OPXB4LPBJMQT4LGMMHC6PQGS \
  | 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: 071cfb878b7852c84f8b33187179f034a7f4dd50cdfcf343a1817135111aeb33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbe3b27fd4869c28dbd946a62887c4b4411618b232cdef4cce2caebefa5ece3c",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2023-12-26T00:53:02Z",
    "title_canon_sha256": "fb5d4043a6faebf7901afc9743b539abd8b816f29c59e721202ae5a3c8f8a8d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2312.15837",
    "kind": "arxiv",
    "version": 2
  }
}