Pith Number

pith:Y2RBZ4KZ

pith:2018:Y2RBZ4KZXH74EMPIF6SZX5VBNY

not attested not anchored not stored refs pending

Extended KdV equation for the case of uneven bottom

Anna Karczewska, Piotr Rozmej

arxiv:1810.07183 v3 · 2018-10-16 · 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{Y2RBZ4KZXH74EMPIF6SZX5VBNY}

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	2026-05-17T23:42:58.747084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6a21cf159b9ffc231e82fa59bf6a16e1965a26afda2613791262b487d7df967

Aliases

arxiv: 1810.07183 · arxiv_version: 1810.07183v3 · doi: 10.48550/arxiv.1810.07183 · pith_short_12: Y2RBZ4KZXH74 · pith_short_16: Y2RBZ4KZXH74EMPI · pith_short_8: Y2RBZ4KZ

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/Y2RBZ4KZXH74EMPIF6SZX5VBNY \
  | 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: c6a21cf159b9ffc231e82fa59bf6a16e1965a26afda2613791262b487d7df967

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d8c102d5a94b8e87cec72516b8025108f208c8c04c019a53f81797bf99e4d9f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2018-10-16T17:38:38Z",
    "title_canon_sha256": "6269d1798870f1cb8e6ffd5856d88a96bd426d1b25250faedc0ea68af9a1caf3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.07183",
    "kind": "arxiv",
    "version": 3
  }
}