Pith Number

pith:EDDFQCYF

pith:2018:EDDFQCYFKHECFBWNZSHBVRB2SI

not attested not anchored not stored refs pending

New exact superposition solutions to KdV2 equation

Anna Karczewska, Piotr Rozmej

arxiv:1804.02222 v1 · 2018-04-06 · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EDDFQCYFKHECFBWNZSHBVRB2SI}

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	2026-05-18T00:19:05.489335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20c6580b0551c82286cdcc8e1ac43a9210f257ca246ea0418c89b0a762a56219

Aliases

arxiv: 1804.02222 · arxiv_version: 1804.02222v1 · doi: 10.48550/arxiv.1804.02222 · pith_short_12: EDDFQCYFKHEC · pith_short_16: EDDFQCYFKHECFBWN · pith_short_8: EDDFQCYF

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/EDDFQCYFKHECFBWNZSHBVRB2SI \
  | 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: 20c6580b0551c82286cdcc8e1ac43a9210f257ca246ea0418c89b0a762a56219

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1d804ec1af8f4572b6f4e261912c477977eed5843819c82de02c22caf3d2063",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2018-04-06T12:17:32Z",
    "title_canon_sha256": "267228198b3f788660b657a0df0bac94c2b77f71d6f982a05bd246da849975d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02222",
    "kind": "arxiv",
    "version": 1
  }
}