Pith Number

pith:NMLC7JL4

pith:2009:NMLC7JL4DYHJQE7GNF3NQIRDZZ

not attested not anchored not stored refs pending

Soliton Solutions of the KP Equation with V-Shape Initial Waves

Hidekazu tsuji, Masayuki Oikawa, Yuji Kodama

arxiv:0904.2620 v1 · 2009-04-17 · nlin.SI · math-ph · math.MP · nlin.PS · 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{NMLC7JL4DYHJQE7GNF3NQIRDZZ}

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	2026-05-18T02:13:59.629297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b162fa57c1e0e9813e66976d82223ce50cd1033a00bcd2e2393f677a2b583ca

Aliases

arxiv: 0904.2620 · arxiv_version: 0904.2620v1 · doi: 10.48550/arxiv.0904.2620 · pith_short_12: NMLC7JL4DYHJ · pith_short_16: NMLC7JL4DYHJQE7G · pith_short_8: NMLC7JL4

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/NMLC7JL4DYHJQE7GNF3NQIRDZZ \
  | 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: 6b162fa57c1e0e9813e66976d82223ce50cd1033a00bcd2e2393f677a2b583ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f986e67257fea198d143ffaaafca4ca633c2758114b054c1fc0bca688ef910c",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "nlin.PS",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2009-04-17T03:06:37Z",
    "title_canon_sha256": "84893f8031a1a79692751876ec24dfa49240ee5e9a124256de96fdd12fee6442"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2620",
    "kind": "arxiv",
    "version": 1
  }
}