Pith Number

pith:4YXDLJ4C

pith:2015:4YXDLJ4CLZQTHMIK4IASEJQXEM

not attested not anchored not stored refs pending

Reciprocal link for a coupled Camassa-Holm type equation

Jinshun Zhang, Lihua Wu, NianHua Li

arxiv:1505.00961 v1 · 2015-05-05 · math-ph · math.MP · 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{4YXDLJ4CLZQTHMIK4IASEJQXEM}

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	2026-05-18T01:16:50.686443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e62e35a7825e6133b10ae201222617230b1f984ada7f94982ef5b286baa32722

Aliases

arxiv: 1505.00961 · arxiv_version: 1505.00961v1 · doi: 10.48550/arxiv.1505.00961 · pith_short_12: 4YXDLJ4CLZQT · pith_short_16: 4YXDLJ4CLZQTHMIK · pith_short_8: 4YXDLJ4C

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/4YXDLJ4CLZQTHMIK4IASEJQXEM \
  | 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: e62e35a7825e6133b10ae201222617230b1f984ada7f94982ef5b286baa32722

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "452f236ddb99f3a70fcfd6d048465cf433fc2f29d941a64f994153f3eadb1db3",
    "cross_cats_sorted": [
      "math.MP",
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2015-05-05T11:29:33Z",
    "title_canon_sha256": "fe93866e5bdd029e3edf22841ec3232530f689b1fa0ddb2a56f075f6096f50db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.00961",
    "kind": "arxiv",
    "version": 1
  }
}