Pith Number

pith:P2XSDWCS

pith:2015:P2XSDWCSRCFS3E4EIRHCVYCPSQ

not attested not anchored not stored refs pending

A Spectral Clustering Approach to Lagrangian Vortex Detection

Alireza Hadjighasem, Daniel Karrasch, George Haller, Hiroshi Teramoto

arxiv:1506.02258 v3 · 2015-06-07 · 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{P2XSDWCSRCFS3E4EIRHCVYCPSQ}

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	2026-05-18T01:11:33.557584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7eaf21d852888b2d9384444e2ae04f9434bde30f3367b68c851e4e012c24f8f8

Aliases

arxiv: 1506.02258 · arxiv_version: 1506.02258v3 · doi: 10.48550/arxiv.1506.02258 · pith_short_12: P2XSDWCSRCFS · pith_short_16: P2XSDWCSRCFS3E4E · pith_short_8: P2XSDWCS

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/P2XSDWCSRCFS3E4EIRHCVYCPSQ \
  | 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: 7eaf21d852888b2d9384444e2ae04f9434bde30f3367b68c851e4e012c24f8f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f84f37b45f0de488b3145a382ae4c8b515aaca1dcd59cb276cb586b9da30fe61",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2015-06-07T12:18:39Z",
    "title_canon_sha256": "8816b53c6be9cba4ccc95669af2feb9a9b45099efeb879a195baf3a34c131f25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.02258",
    "kind": "arxiv",
    "version": 3
  }
}