Pith Number

pith:EUPSNTM5

pith:2006:EUPSNTM5DYWV7IZFPXBTAYUHDK

not attested not anchored not stored refs pending

Classification of integrable Hamiltonian hydrodynamic chains associated with Kupershmidt's brackets

D.G. Marshall, E.V. Ferapontov, K.R. Khusnutdinova, M.V. Pavlov

arxiv:nlin/0607003 v2 · 2006-07-05 · nlin.SI · nlin.AO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EUPSNTM5DYWV7IZFPXBTAYUHDK}

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	2026-05-18T01:38:18.024737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

251f26cd9d1e2d5fa3257dc33062871abd2ed9951748aa6a841770abb1e02281

Aliases

arxiv: nlin/0607003 · arxiv_version: nlin/0607003v2 · doi: 10.48550/arxiv.nlin/0607003 · pith_short_12: EUPSNTM5DYWV · pith_short_16: EUPSNTM5DYWV7IZF · pith_short_8: EUPSNTM5

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/EUPSNTM5DYWV7IZFPXBTAYUHDK \
  | 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: 251f26cd9d1e2d5fa3257dc33062871abd2ed9951748aa6a841770abb1e02281

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9362dce5cc0d0aaaf62a75b430b34209fe159be22aae36886d6544732aa48905",
    "cross_cats_sorted": [
      "nlin.AO"
    ],
    "license": "",
    "primary_cat": "nlin.SI",
    "submitted_at": "2006-07-05T12:21:11Z",
    "title_canon_sha256": "88218e5c2bbad146a716be837575e392d39d05d2562bf7b751b565ac4985a884"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/0607003",
    "kind": "arxiv",
    "version": 2
  }
}