Pith Number

pith:JIC5OSO7

pith:2018:JIC5OSO7LFHPMNM6LJNTEVMRH5

not attested not anchored not stored refs pending

On the approximation of Koopman spectra for measure preserving transformations

Igor Mezi\'c, Nithin Govindarajan, Ryan Mohr, Shivkumar Chandrasekaran

arxiv:1803.03920 v2 · 2018-03-11 · 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{JIC5OSO7LFHPMNM6LJNTEVMRH5}

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	2026-05-17T23:58:52.925155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a05d749df594ef6359e5a5b3255913f5a507f773b9e8360d187a2ebdb919d4a

Aliases

arxiv: 1803.03920 · arxiv_version: 1803.03920v2 · doi: 10.48550/arxiv.1803.03920 · pith_short_12: JIC5OSO7LFHP · pith_short_16: JIC5OSO7LFHPMNM6 · pith_short_8: JIC5OSO7

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/JIC5OSO7LFHPMNM6LJNTEVMRH5 \
  | 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: 4a05d749df594ef6359e5a5b3255913f5a507f773b9e8360d187a2ebdb919d4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fccd86b07263afda08481d8a316fab12375bfc7b810dc2c7793b0966a6360559",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2018-03-11T07:48:44Z",
    "title_canon_sha256": "564fef08665e13825583b0c1cf112bd12bccee9ed05e41578c4170801675222a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.03920",
    "kind": "arxiv",
    "version": 2
  }
}