Pith Number

pith:R7BMQXNH

pith:2025:R7BMQXNHPODCD3XXFF7XCD5NC4

not attested not anchored not stored refs pending

Internal solitary and cnoidal waves of moderate amplitude in a two-layer fluid: the extended KdV equation approximation

Dmitri Tseluiko, Karima Khusnutdinova, Nerijus Sidorovas, Wooyoung Choi

arxiv:2504.21513 v1 · 2025-04-30 · physics.flu-dyn · nlin.PS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R7BMQXNHPODCD3XXFF7XCD5NC4}

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	2026-07-05T10:56:24.953091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fc2c85da77b8621eef7297f710fad173883a68bf564291c595db039aff2a6c3

Aliases

arxiv: 2504.21513 · arxiv_version: 2504.21513v1 · doi: 10.48550/arxiv.2504.21513 · pith_short_12: R7BMQXNHPODC · pith_short_16: R7BMQXNHPODCD3XX · pith_short_8: R7BMQXNH

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/R7BMQXNHPODCD3XXFF7XCD5NC4 \
  | 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: 8fc2c85da77b8621eef7297f710fad173883a68bf564291c595db039aff2a6c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "672eb89675bbd80822b4ec666e830d5e814de108d4b6af97095c11a76665443b",
    "cross_cats_sorted": [
      "nlin.PS"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2025-04-30T11:06:07Z",
    "title_canon_sha256": "7e59b86077e74aa9fbefe3de4f9888515a08ccc77073e02beb3b502e685d6e9f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.21513",
    "kind": "arxiv",
    "version": 1
  }
}