Pith Number

pith:2O2EI6XE

pith:1998:2O2EI6XEU5XNHUHVOCXO7UKLCV

not attested not anchored not stored refs pending

Extending Hamiltonian Operators to Get Bi-Hamiltonian Coupled KdV Systems

Maxim Pavlov, Wen-Xiu Ma

arxiv:solv-int/9807002 v1 · 1998-07-08 · solv-int · 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{2O2EI6XEU5XNHUHVOCXO7UKLCV}

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	2026-05-18T01:04:59.924040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3b4447ae4a76ed3d0f570aeefd14b154ccb25a25d8148bf73694720e8b90254

Aliases

arxiv: solv-int/9807002 · arxiv_version: solv-int/9807002v1 · doi: 10.48550/arxiv.solv-int/9807002 · pith_short_12: 2O2EI6XEU5XN · pith_short_16: 2O2EI6XEU5XNHUHV · pith_short_8: 2O2EI6XE

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/2O2EI6XEU5XNHUHVOCXO7UKLCV \
  | 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: d3b4447ae4a76ed3d0f570aeefd14b154ccb25a25d8148bf73694720e8b90254

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cc6dc3ba5f733ea6d1c6dbf686e688bdbbb116536458699da4777a5e9cb95a8",
    "cross_cats_sorted": [
      "nlin.SI"
    ],
    "license": "",
    "primary_cat": "solv-int",
    "submitted_at": "1998-07-08T06:33:00Z",
    "title_canon_sha256": "113d599dcf9a1cf3bc13027eec90dc9583a79d73dc96ca16edd45ba5fb3b4a3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "solv-int/9807002",
    "kind": "arxiv",
    "version": 1
  }
}