Pith Number

pith:JO7BMM4G

pith:2018:JO7BMM4G2EGMY3M2AO2YQQN5NQ

not attested not anchored not stored refs pending

On the approximation of Koopman spectra of measure-preserving flows

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

arxiv:1806.10296 v1 · 2018-06-27 · 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{JO7BMM4G2EGMY3M2AO2YQQN5NQ}

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	2026-05-18T00:12:12.912675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bbe163386d10ccc6d9a03b58841bd6c27ae6ac47e4bda86f8c8208e0da09037

Aliases

arxiv: 1806.10296 · arxiv_version: 1806.10296v1 · doi: 10.48550/arxiv.1806.10296 · pith_short_12: JO7BMM4G2EGM · pith_short_16: JO7BMM4G2EGMY3M2 · pith_short_8: JO7BMM4G

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/JO7BMM4G2EGMY3M2AO2YQQN5NQ \
  | 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: 4bbe163386d10ccc6d9a03b58841bd6c27ae6ac47e4bda86f8c8208e0da09037

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b899b491af50225de2c10f62dbad5e2259c5adb035f57aa5f38de5fba8f1a281",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2018-06-27T04:40:24Z",
    "title_canon_sha256": "ddf52697bbd43d6c8c62f185f99510ed9eb396829ed66cb9f2eb5b7aec11d988"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.10296",
    "kind": "arxiv",
    "version": 1
  }
}