Pith Number

pith:PSJL66EF

pith:2012:PSJL66EFRBUVLCL56W2PSU24L5

not attested not anchored not stored refs pending

The Two-Component Camassa-Holm Equations CH(2,1) and CH(2,2): First-Order Integrating Factors and Conservation Laws

Marianna Euler, Norbert Euler, Thomas Wolf

arxiv:1204.3738 v2 · 2012-04-17 · 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{PSJL66EFRBUVLCL56W2PSU24L5}

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	2026-05-18T01:57:51.619775Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c92bf7885886955897df5b4f9535c5f64263d86c9fdb4cc6ad883bcd95e2efe

Aliases

arxiv: 1204.3738 · arxiv_version: 1204.3738v2 · doi: 10.48550/arxiv.1204.3738 · pith_short_12: PSJL66EFRBUV · pith_short_16: PSJL66EFRBUVLCL5 · pith_short_8: PSJL66EF

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/PSJL66EFRBUVLCL56W2PSU24L5 \
  | 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: 7c92bf7885886955897df5b4f9535c5f64263d86c9fdb4cc6ad883bcd95e2efe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5350c1a141e60cfe4f176c239bfb6c47929d2f6d1b336d9e4292fa65daea95d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2012-04-17T09:10:40Z",
    "title_canon_sha256": "a56b85ac3a8b73081a34c8ae8b15db4ce629eed84bdb4a0e1ff46244bf4a2830"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3738",
    "kind": "arxiv",
    "version": 2
  }
}