Pith Number

pith:OVWUW34L

pith:2002:OVWUW34LBS2QYR3223BV5GDAPR

not attested not anchored not stored refs pending

From bi-Hamiltonian geometry to separation of variables: stationary Harry-Dym and the KdV dressing chain

Maciej Blaszak

arxiv:nlin/0202001 v1 · 2002-02-01 · 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{OVWUW34LBS2QYR3223BV5GDAPR}

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	2026-05-18T01:38:21.546843Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

756d4b6f8b0cb50c477ad6c35e98607c4fb6630293bb5f6040c2245c5432328b

Aliases

arxiv: nlin/0202001 · arxiv_version: nlin/0202001v1 · doi: 10.48550/arxiv.nlin/0202001 · pith_short_12: OVWUW34LBS2Q · pith_short_16: OVWUW34LBS2QYR32 · pith_short_8: OVWUW34L

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/OVWUW34LBS2QYR3223BV5GDAPR \
  | 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: 756d4b6f8b0cb50c477ad6c35e98607c4fb6630293bb5f6040c2245c5432328b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84d1c8feaaf6258e8f9bb9dce8a3d2414cd0a5e6b726283093d9f1a666af9856",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "nlin.SI",
    "submitted_at": "2002-02-01T09:44:35Z",
    "title_canon_sha256": "dfa7edaa7aec258d4ecb2837aaecdf10690b3c46603847aeddd7399e17a2cf8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/0202001",
    "kind": "arxiv",
    "version": 1
  }
}