Pith Number

pith:IQWQC37K

pith:2019:IQWQC37KCLGP4H27HZW7APHDPE

not attested not anchored not stored refs pending

Bifurcation of limit cycles from the global center of a class of integrable non-Hamilton system under perturbations of piecewise smooth polynomials

Liqin Zhao, Shiyou Sui

arxiv:1904.05702 v1 · 2019-04-11 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IQWQC37KCLGP4H27HZW7APHDPE}

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	2026-05-17T23:48:48.718085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

442d016fea12ccfe1f5f3e6df03ce37933f7505b2b95c14eedb3f3a110a075f2

Aliases

arxiv: 1904.05702 · arxiv_version: 1904.05702v1 · doi: 10.48550/arxiv.1904.05702 · pith_short_12: IQWQC37KCLGP · pith_short_16: IQWQC37KCLGP4H27 · pith_short_8: IQWQC37K

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/IQWQC37KCLGP4H27HZW7APHDPE \
  | 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: 442d016fea12ccfe1f5f3e6df03ce37933f7505b2b95c14eedb3f3a110a075f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e002969d5e24f06e15850fa2320a2b4ce060fbe91844a21ab068d9dbe4450b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2019-04-11T14:04:51Z",
    "title_canon_sha256": "756b02b7f6d816c7cb9827755ce8db551e5cb8b7c6828ed53e398b4c72ee2ce9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.05702",
    "kind": "arxiv",
    "version": 1
  }
}