Pith Number

pith:7UJEW7PU

pith:2014:7UJEW7PU4AU4ZB36FPE5GSWYG3

not attested not anchored not stored refs pending

An integrable (2+1)-dimensional Camassa-Holm hierarchy with peakon solutions

Baoqiang Xia, Zhijun Qiao

arxiv:1407.7398 v2 · 2014-07-28 · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7UJEW7PU4AU4ZB36FPE5GSWYG3}

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	2026-05-18T01:42:29.351692Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd124b7df4e029cc877e2bc9d34ad836f88c713e56b3f5db1f9224feae315ba8

Aliases

arxiv: 1407.7398 · arxiv_version: 1407.7398v2 · doi: 10.48550/arxiv.1407.7398 · pith_short_12: 7UJEW7PU4AU4 · pith_short_16: 7UJEW7PU4AU4ZB36 · pith_short_8: 7UJEW7PU

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/7UJEW7PU4AU4ZB36FPE5GSWYG3 \
  | 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: fd124b7df4e029cc877e2bc9d34ad836f88c713e56b3f5db1f9224feae315ba8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0a7c02780709263003fcbd7363f14250841a544673d7b1ac78d8d8653b3210b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2014-07-28T12:54:42Z",
    "title_canon_sha256": "e4d44b9e73fca4c3e7bfe7c67d6f96c59b6576652b85ce3e1e9952c8fcc528c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.7398",
    "kind": "arxiv",
    "version": 2
  }
}