Pith Number

pith:5KTXA676

pith:2018:5KTXA676DYQO5IBIQNGJX3W5OY

not attested not anchored not stored refs pending

Limit cycles of a Li\'enard system with symmetry allowing for discontinuity

Hebai Chen Maoan Han, Yonghui Xia

arxiv:1802.06601 v3 · 2018-02-19 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5KTXA676DYQO5IBIQNGJX3W5OY}

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	2026-05-18T00:19:32.842519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eaa7707bfe1e20eea028834c9beedd76397345f8ed6def822b4a25d7903705aa

Aliases

arxiv: 1802.06601 · arxiv_version: 1802.06601v3 · doi: 10.48550/arxiv.1802.06601 · pith_short_12: 5KTXA676DYQO · pith_short_16: 5KTXA676DYQO5IBI · pith_short_8: 5KTXA676

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/5KTXA676DYQO5IBIQNGJX3W5OY \
  | 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: eaa7707bfe1e20eea028834c9beedd76397345f8ed6def822b4a25d7903705aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4adde5e34b676f10e730dfb845d2100e99323729a678f94e045fa266566174d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2018-02-19T12:08:11Z",
    "title_canon_sha256": "3950a0fa71561612a9c8621ea8f0b76ee00696df233eff18a612becc5dc85b2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.06601",
    "kind": "arxiv",
    "version": 3
  }
}