Pith Number

pith:G6RA7VQX

pith:2011:G6RA7VQXNYMFG5CVIXPGGX6YWX

not attested not anchored not stored refs pending

Group Analysis of Nonlinear Internal Waves in Oceans. I: Self-adjointness, conservation laws, invariant solutions

Nail H. Ibragimov, Ranis N. Ibragimov

arxiv:1108.1877 v1 · 2011-08-09 · 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{G6RA7VQXNYMFG5CVIXPGGX6YWX}

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	2026-05-18T04:15:58.876002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37a20fd6176e1853745545de635fd8b5f0babd28aae09ecd72dd89325029cbc8

Aliases

arxiv: 1108.1877 · arxiv_version: 1108.1877v1 · doi: 10.48550/arxiv.1108.1877 · pith_short_12: G6RA7VQXNYMF · pith_short_16: G6RA7VQXNYMFG5CV · pith_short_8: G6RA7VQX

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/G6RA7VQXNYMFG5CVIXPGGX6YWX \
  | 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: 37a20fd6176e1853745545de635fd8b5f0babd28aae09ecd72dd89325029cbc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66e75056f8ad48083c309dc0ff506ff5ecf1a292113df286815c5a9dd96b30a5",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2011-08-09T08:25:37Z",
    "title_canon_sha256": "5628bf35fcc0e42383a76220b62cb5feb1cd19e7199c9e6a35145675431f1f95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.1877",
    "kind": "arxiv",
    "version": 1
  }
}