Pith Number

pith:LBRVXKZD

pith:2015:LBRVXKZDXCXCYFC5444HVUPVWF

not attested not anchored not stored refs pending

The bi-Hamiltonian cohomology of a scalar Poisson pencil

Guido Carlet, Hessel Posthuma, Sergey Shadrin

arxiv:1505.03894 v2 · 2015-05-14 · math.DG · math-ph · math.MP · 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{LBRVXKZDXCXCYFC5444HVUPVWF}

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	2026-05-18T00:37:48.906510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58635bab23b8ae2c145de7387ad1f5b1673e11f92678d3602c66674d32e73526

Aliases

arxiv: 1505.03894 · arxiv_version: 1505.03894v2 · doi: 10.48550/arxiv.1505.03894 · pith_short_12: LBRVXKZDXCXC · pith_short_16: LBRVXKZDXCXCYFC5 · pith_short_8: LBRVXKZD

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/LBRVXKZDXCXCYFC5444HVUPVWF \
  | 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: 58635bab23b8ae2c145de7387ad1f5b1673e11f92678d3602c66674d32e73526

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c019184e5b1d07f52013d85675b9dc20ad869425a570963eb0f99a211245ff86",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-05-14T21:25:54Z",
    "title_canon_sha256": "bdd524c4dd885bcf4c64c3a0159f90bd268c2e7ca647455d339d70c0ebf22422"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.03894",
    "kind": "arxiv",
    "version": 2
  }
}