Pith Number

pith:OPZICPA2

pith:2017:OPZICPA2CWUPEOED4PXZ7Q2PGK

not attested not anchored not stored refs pending

On deformations of the dispersionless Hirota equation

Wojciech Krynski

arxiv:1704.05666 v1 · 2017-04-19 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OPZICPA2CWUPEOED4PXZ7Q2PGK}

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	2026-05-18T00:19:30.720249Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73f2813c1a15a8f23883e3ef9fc34f3292cf3a2f7f3aa841b7f8e854d5c1485a

Aliases

arxiv: 1704.05666 · arxiv_version: 1704.05666v1 · doi: 10.48550/arxiv.1704.05666 · pith_short_12: OPZICPA2CWUP · pith_short_16: OPZICPA2CWUPEOED · pith_short_8: OPZICPA2

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/OPZICPA2CWUPEOED4PXZ7Q2PGK \
  | 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: 73f2813c1a15a8f23883e3ef9fc34f3292cf3a2f7f3aa841b7f8e854d5c1485a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2867daaef9647e115384a12a058c2c6773d1f8fea756381b3015b125210f9a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-04-19T09:30:35Z",
    "title_canon_sha256": "cd3802c549fcc15a777219706403cb8b1b10e326304600be858959eee980bc9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.05666",
    "kind": "arxiv",
    "version": 1
  }
}