Pith Number

pith:YI4TYDB7

pith:2014:YI4TYDB7WFRBIBZ3LMKPYF2LIS

not attested not anchored not stored refs pending

Non-integrability vs. integrability in pentagram maps

Boris Khesin, Fedor Soloviev

arxiv:1404.6221 v1 · 2014-04-24 · math.DS · math.SG · 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{YI4TYDB7WFRBIBZ3LMKPYF2LIS}

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	2026-05-18T01:43:23.518079Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2393c0c3fb16214073b5b14fc174b44b02dacb747a13670516786e3b0766e59

Aliases

arxiv: 1404.6221 · arxiv_version: 1404.6221v1 · doi: 10.48550/arxiv.1404.6221 · pith_short_12: YI4TYDB7WFRB · pith_short_16: YI4TYDB7WFRBIBZ3 · pith_short_8: YI4TYDB7

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/YI4TYDB7WFRBIBZ3LMKPYF2LIS \
  | 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: c2393c0c3fb16214073b5b14fc174b44b02dacb747a13670516786e3b0766e59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d1aafbeb6acdcc191b7d5a525a190f523d22ea30e9403c2dbba217eace6b293",
    "cross_cats_sorted": [
      "math.SG",
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2014-04-24T18:41:56Z",
    "title_canon_sha256": "d822371890740fb7696b616a3ab1d3ab4ea2dbed47200836ef2b1044be5a625f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.6221",
    "kind": "arxiv",
    "version": 1
  }
}