Pith Number

pith:POWMHWMC

pith:2006:POWMHWMCXRX2UQ7CYHTV3PPHDX

not attested not anchored not stored refs pending

Solvable Nonlinear Evolution PDEs in Multidimensional Space

Francesco Calogero, Matteo Sommacal

arxiv:nlin/0612019 v2 · 2006-12-10 · nlin.SI · hep-th · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{POWMHWMCXRX2UQ7CYHTV3PPHDX}

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	2026-07-04T15:11:06.874332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bacc3d982bc6faa43e2c1e75dbde71de34676b581c5a2c4339fd75da48d4d22

Aliases

arxiv: nlin/0612019 · arxiv_version: nlin/0612019v2 · doi: 10.48550/arxiv.nlin/0612019 · pith_short_12: POWMHWMCXRX2 · pith_short_16: POWMHWMCXRX2UQ7C · pith_short_8: POWMHWMC

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/POWMHWMCXRX2UQ7CYHTV3PPHDX \
  | 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: 7bacc3d982bc6faa43e2c1e75dbde71de34676b581c5a2c4339fd75da48d4d22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3939a4507b1e6ff503e2762b3df6d674d3a0bcb1201630ec5fe3e1abcb08e4e4",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "nlin.SI",
    "submitted_at": "2006-12-10T06:21:47Z",
    "title_canon_sha256": "bc05cfd911ea66a98ac2ccf3c085e036579f4afbbd6009d46cf2c298333aacb3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/0612019",
    "kind": "arxiv",
    "version": 2
  }
}