Pith Number

pith:EXTTO4RF

pith:2019:EXTTO4RFVHCXIOOJ6LZV2DAKBJ

not attested not anchored not stored refs pending

Modified method of simplest equation for obtaining exact solutions of nonlinear partial differential equations: past and present

Nikolay K. Vitanov

arxiv:1906.08053 v1 · 2019-06-18 · 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{EXTTO4RFVHCXIOOJ6LZV2DAKBJ}

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	2026-05-17T23:42:54.743656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25e7377225a9c57439c9f2f35d0c0a0a7c258b5516dbe811a647d9087be3876f

Aliases

arxiv: 1906.08053 · arxiv_version: 1906.08053v1 · doi: 10.48550/arxiv.1906.08053 · pith_short_12: EXTTO4RFVHCX · pith_short_16: EXTTO4RFVHCXIOOJ · pith_short_8: EXTTO4RF

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/EXTTO4RFVHCXIOOJ6LZV2DAKBJ \
  | 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: 25e7377225a9c57439c9f2f35d0c0a0a7c258b5516dbe811a647d9087be3876f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e55d32e8334f43372fba06d12f562c7b551eea1ebebddc307d542ff3dac89e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2019-06-18T17:53:30Z",
    "title_canon_sha256": "6153f255e668ab9c94b238f3dbf1b0a23bbbb5c5031d9907d03ded8b8ee703be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.08053",
    "kind": "arxiv",
    "version": 1
  }
}