Pith Number

pith:JBB5RSRI

pith:2011:JBB5RSRIOPXYG5RXABHB2NERTX

not attested not anchored not stored refs pending

Bi-Hamiltonian ODEs with matrix variables

Alexander Odesskii, Vladimir Rubtsov, Vladimir Sokolov

arxiv:1105.1740 v1 · 2011-05-09 · 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{JBB5RSRIOPXYG5RXABHB2NERTX}

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	2026-05-18T04:22:32.577786Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4843d8ca2873ef837637004e1d34919de4b5a2673e8952391b35e7387c368660

Aliases

arxiv: 1105.1740 · arxiv_version: 1105.1740v1 · doi: 10.48550/arxiv.1105.1740 · pith_short_12: JBB5RSRIOPXY · pith_short_16: JBB5RSRIOPXYG5RX · pith_short_8: JBB5RSRI

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/JBB5RSRIOPXYG5RXABHB2NERTX \
  | 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: 4843d8ca2873ef837637004e1d34919de4b5a2673e8952391b35e7387c368660

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8e05bf59d3c6d8f2067f7e0f6770b96d838fc4e8a99821eec2378b1d9e2bde1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2011-05-09T17:37:18Z",
    "title_canon_sha256": "d743f9a5c804cb889a804424c427e0d476df2b07af77985255313c85c5bd7419"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.1740",
    "kind": "arxiv",
    "version": 1
  }
}