Pith Number

pith:4NCPV4SD

pith:2017:4NCPV4SDQBNUJG3HNL4SHMPHRN

not attested not anchored not stored refs pending

Centers and limit cycles of a generalized cubic Riccati system

Jiang Yu, Valery G. Romanovski, Zhengxin Zhou

arxiv:1706.00099 v1 · 2017-05-31 · 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{4NCPV4SDQBNUJG3HNL4SHMPHRN}

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	2026-05-18T00:43:15.028389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e344faf243805b449b676af923b1e78b5602a7713ce3bcc29bfb3db3e8ee1f4f

Aliases

arxiv: 1706.00099 · arxiv_version: 1706.00099v1 · doi: 10.48550/arxiv.1706.00099 · pith_short_12: 4NCPV4SDQBNU · pith_short_16: 4NCPV4SDQBNUJG3H · pith_short_8: 4NCPV4SD

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/4NCPV4SDQBNUJG3HNL4SHMPHRN \
  | 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: e344faf243805b449b676af923b1e78b5602a7713ce3bcc29bfb3db3e8ee1f4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13ab9cf5776dddffa88ca5a280dae86313965121fe40c87094fd76f7e84e22b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2017-05-31T21:32:39Z",
    "title_canon_sha256": "835f4ffeb05d183c8782ebbeba34423305b90ca932b81b8fd5b189d7c38dada3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.00099",
    "kind": "arxiv",
    "version": 1
  }
}