Pith Number

pith:NL2S2ORW

pith:2017:NL2S2ORWCVX3HZRM2HB2WJWM3P

not attested not anchored not stored refs pending

Spectrum of the Koopman Operator, Spectral Expansions in Functional Spaces, and State Space Geometry

Igor Mezic

arxiv:1702.07597 v2 · 2017-02-22 · nlin.CD · 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{NL2S2ORWCVX3HZRM2HB2WJWM3P}

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

Quantum mechanics for classical transport equations

On the algebra of Koopman eigenfunctions and on some of their infinities

Receipt and verification

First computed	2026-07-05T00:12:59.445104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6af52d3a36156fb3e62cd1c3ab26ccdbf37d83e2b9da58d8f6b03fd3d1e222f2

Aliases

arxiv: 1702.07597 · arxiv_version: 1702.07597v2 · doi: 10.48550/arxiv.1702.07597 · pith_short_12: NL2S2ORWCVX3 · pith_short_16: NL2S2ORWCVX3HZRM · pith_short_8: NL2S2ORW

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/NL2S2ORWCVX3HZRM2HB2WJWM3P \
  | 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: 6af52d3a36156fb3e62cd1c3ab26ccdbf37d83e2b9da58d8f6b03fd3d1e222f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15ab18ac2b22f1d4e328eb909a9632b16bdaa0f780371f8097ea91f0ad33eb53",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2017-02-22T19:58:36Z",
    "title_canon_sha256": "08fe57f9af9adf7bf88ab1dd4940ad5c87cc50040c399c1ccdfdc0f6d1fc5317"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.07597",
    "kind": "arxiv",
    "version": 2
  }
}