Pith Number

pith:I7VTT3VN

pith:2015:I7VTT3VNDEBZB75CAWD7XZCU27

not attested not anchored not stored refs pending

Deformations of semisimple Poisson pencils of hydrodynamic type are unobstructed

Guido Carlet, Hessel Posthuma, Sergey Shadrin

arxiv:1501.04295 v4 · 2015-01-18 · 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{I7VTT3VNDEBZB75CAWD7XZCU27}

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	2026-05-18T00:02:46.101543Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47eb39eead190390ffa20587fbe454d7d98f64fb32484d4675d439c0dd3dc222

Aliases

arxiv: 1501.04295 · arxiv_version: 1501.04295v4 · doi: 10.48550/arxiv.1501.04295 · pith_short_12: I7VTT3VNDEBZ · pith_short_16: I7VTT3VNDEBZB75C · pith_short_8: I7VTT3VN

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/I7VTT3VNDEBZB75CAWD7XZCU27 \
  | 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: 47eb39eead190390ffa20587fbe454d7d98f64fb32484d4675d439c0dd3dc222

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3876a87df34d1b78c009bfc5c1f0707c2710e9122a587724bb97f4fdefe0c458",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-01-18T13:25:38Z",
    "title_canon_sha256": "3560a6342050bdaaa7be24471bc0a4764e901e50ad9bac9934f6c8fcbb3864a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04295",
    "kind": "arxiv",
    "version": 4
  }
}