Pith Number

pith:OWLQ3OWD

pith:2017:OWLQ3OWDB3QLUNXLISL3ZELS7I

not attested not anchored not stored refs pending

2D reductions of the equation $u_{yy} = u_{tx} + u_yu_{xx} - u_xu_{xy}$ and their nonlocal symmetries

I.S. Krasil'shchik, O.I. Morozov, P. Holba, P. Vojcak

arxiv:1707.07645 v1 · 2017-07-24 · 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{OWLQ3OWDB3QLUNXLISL3ZELS7I}

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	2026-05-18T00:39:41.516069Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75970dbac30ee0ba36eb4497bc9172fa37d4ef9fa3a6a703474b1ab6c5f2547c

Aliases

arxiv: 1707.07645 · arxiv_version: 1707.07645v1 · doi: 10.48550/arxiv.1707.07645 · pith_short_12: OWLQ3OWDB3QL · pith_short_16: OWLQ3OWDB3QLUNXL · pith_short_8: OWLQ3OWD

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/OWLQ3OWDB3QLUNXLISL3ZELS7I \
  | 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: 75970dbac30ee0ba36eb4497bc9172fa37d4ef9fa3a6a703474b1ab6c5f2547c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11ad2e70e6242b72e954c1fe8d7afe51b789cdb8a0354ef0df24535771675b0e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2017-07-24T17:01:45Z",
    "title_canon_sha256": "7a9738fdfcf14ef8035683396b8d6bb598ac991725f3f7c5104b0258e8370dc6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.07645",
    "kind": "arxiv",
    "version": 1
  }
}