Pith Number

pith:JSXBK4JJ

pith:2016:JSXBK4JJQDP7SLYP2K5GFSO7K2

not attested not anchored not stored refs pending

Enumerating meandric systems with large number of loops

Ion Nechita, Motohisa Fukuda

arxiv:1609.02756 v2 · 2016-09-09 · math.CO · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JSXBK4JJQDP7SLYP2K5GFSO7K2}

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	2026-07-05T00:22:33.410248Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4cae15712980dff92f0fd2ba62c9df56b66b418128ecd9d10cf755dae7630bee

Aliases

arxiv: 1609.02756 · arxiv_version: 1609.02756v2 · doi: 10.48550/arxiv.1609.02756 · pith_short_12: JSXBK4JJQDP7 · pith_short_16: JSXBK4JJQDP7SLYP · pith_short_8: JSXBK4JJ

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/JSXBK4JJQDP7SLYP2K5GFSO7K2 \
  | 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: 4cae15712980dff92f0fd2ba62c9df56b66b418128ecd9d10cf755dae7630bee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10580e95e1ccbd901a35ce228bebaf9fafc200d7701f8dab1ff00a7c4c8d69ef",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-09-09T12:06:11Z",
    "title_canon_sha256": "468de5bcc07d7a283674f86cc638d1c58a6e52b524c39eee939360362091c0f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.02756",
    "kind": "arxiv",
    "version": 2
  }
}