Pith Number

pith:25XBHEH5

pith:2013:25XBHEH5C2LFFSP7DW4DG6ADTR

not attested not anchored not stored refs pending

On a class of integrable systems with a quartic first integral

Galliano Valent

arxiv:1304.5859 v1 · 2013-04-22 · nlin.SI · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{25XBHEH5C2LFFSP7DW4DG6ADTR}

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	2026-05-18T01:50:23.783991Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d76e1390fd169652c9ff1db83378039c6aa44d6e634bd4d8154d3e4f6cce68a0

Aliases

arxiv: 1304.5859 · arxiv_version: 1304.5859v1 · doi: 10.48550/arxiv.1304.5859 · pith_short_12: 25XBHEH5C2LF · pith_short_16: 25XBHEH5C2LFFSP7 · pith_short_8: 25XBHEH5

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/25XBHEH5C2LFFSP7DW4DG6ADTR \
  | 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: d76e1390fd169652c9ff1db83378039c6aa44d6e634bd4d8154d3e4f6cce68a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3961c8f0c29c97fcc3d356c53c5c1228f50f6fa9ff7cbd270957ae8c942a96ec",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2013-04-22T07:12:47Z",
    "title_canon_sha256": "5e6c16c34fa144de2438bb1ed71de4de8ad52d20ed71a2469a56a2b82f2eef51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.5859",
    "kind": "arxiv",
    "version": 1
  }
}