Pith Number

pith:4HPA7G5D

pith:2015:4HPA7G5DXDSIY5HUFQPM6EA6L7

not attested not anchored not stored refs pending

On integrals for some class of ordinary difference equations admitting a Lax pair representation

Andrei K. Svinin

arxiv:1505.06394 v2 · 2015-05-24 · 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{4HPA7G5DXDSIY5HUFQPM6EA6L7}

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	2026-05-18T01:20:46.301162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1de0f9ba3b8e48c74f42c1ecf101e5fdba247c707960d7cb0f9ef358b2ee8c4

Aliases

arxiv: 1505.06394 · arxiv_version: 1505.06394v2 · doi: 10.48550/arxiv.1505.06394 · pith_short_12: 4HPA7G5DXDSI · pith_short_16: 4HPA7G5DXDSIY5HU · pith_short_8: 4HPA7G5D

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/4HPA7G5DXDSIY5HUFQPM6EA6L7 \
  | 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: e1de0f9ba3b8e48c74f42c1ecf101e5fdba247c707960d7cb0f9ef358b2ee8c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "247cd4bcbc6214abb4ad367cbee7ee8c38c76b537acfddba0dddf78cece64bf6",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2015-05-24T02:17:39Z",
    "title_canon_sha256": "22cb2a7d478e2c7dece01a564f7a4ee0b0a33e33d306b9a4fbcb8fb505c3b867"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.06394",
    "kind": "arxiv",
    "version": 2
  }
}