Pith Number

pith:3X43FJEV

pith:2011:3X43FJEV2ZAX74J2KX6JJMIEVW

not attested not anchored not stored refs pending

Point vortices and polynomials of the Sawada-Kotera and Kaup-Kupershmidt equations

Maria V. Demina, Nikolay A. Kudryashov

arxiv:1112.4804 v1 · 2011-12-20 · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3X43FJEV2ZAX74J2KX6JJMIEVW}

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	2026-05-18T04:04:44.553051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ddf9b2a495d6417ff13a55fc94b104ad868fa14f207f3e98295c8de335e9a0ba

Aliases

arxiv: 1112.4804 · arxiv_version: 1112.4804v1 · doi: 10.48550/arxiv.1112.4804 · pith_short_12: 3X43FJEV2ZAX · pith_short_16: 3X43FJEV2ZAX74J2 · pith_short_8: 3X43FJEV

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/3X43FJEV2ZAX74J2KX6JJMIEVW \
  | 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: ddf9b2a495d6417ff13a55fc94b104ad868fa14f207f3e98295c8de335e9a0ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e842aa6ef1c793576a1085f2054cbded5fb10e44f1f9bdffea5f62e1f52bb6d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2011-12-20T19:17:00Z",
    "title_canon_sha256": "0086e2727f7688b53cefe0cef556a7f76afb4e528b6ed1288d269ec48eb11539"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.4804",
    "kind": "arxiv",
    "version": 1
  }
}