Pith Number

pith:RPP2YYQP

pith:2002:RPP2YYQPUREAWI3UA4LAW7ARTW

not attested not anchored not stored refs pending

On a two-parameter extension of the lattice KdV system associated with an elliptic curve

Frank W. Nijhoff, Sian Puttock

arxiv:nlin/0212041 v1 · 2002-12-19 · 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{RPP2YYQPUREAWI3UA4LAW7ARTW}

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	2026-05-18T01:38:19.563241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8bdfac620fa4480b237407160b7c119d8518a3e9afb9151dfd39b7e738d21d8f

Aliases

arxiv: nlin/0212041 · arxiv_version: nlin/0212041v1 · doi: 10.48550/arxiv.nlin/0212041 · pith_short_12: RPP2YYQPUREA · pith_short_16: RPP2YYQPUREAWI3U · pith_short_8: RPP2YYQP

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/RPP2YYQPUREAWI3UA4LAW7ARTW \
  | 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: 8bdfac620fa4480b237407160b7c119d8518a3e9afb9151dfd39b7e738d21d8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9c38fd900e3a1e52ed7a1c8ba02428c01bb2d28e71cfbb6d8147507c7aac7d2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "nlin.SI",
    "submitted_at": "2002-12-19T01:00:38Z",
    "title_canon_sha256": "d5d4fb601fb94d0164502155ef14532bb4163cb6b588ffe7529fe4250ef18d65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/0212041",
    "kind": "arxiv",
    "version": 1
  }
}