Pith Number

pith:YXYXMWQW

pith:2010:YXYXMWQWQZNZNBKJCZ5YURF5BL

not attested not anchored not stored refs pending

Isochronicity conditions for some planar polynomial systems II

A. Raouf Chouikha, Islam Boussaada, Jean-Marie Strelcyn, Magali Bardet

arxiv:1005.5048 v4 · 2010-05-27 · math.CA · 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{YXYXMWQWQZNZNBKJCZ5YURF5BL}

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	2026-05-18T03:04:59.907170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5f1765a16865b968549167b8a44bd0af5facf244d91841d697a4d5c0a8199f2

Aliases

arxiv: 1005.5048 · arxiv_version: 1005.5048v4 · doi: 10.48550/arxiv.1005.5048 · pith_short_12: YXYXMWQWQZNZ · pith_short_16: YXYXMWQWQZNZNBKJ · pith_short_8: YXYXMWQW

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/YXYXMWQWQZNZNBKJCZ5YURF5BL \
  | 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: c5f1765a16865b968549167b8a44bd0af5facf244d91841d697a4d5c0a8199f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dead566a123bad7330dc97c821e9f234fae32957834d344f08d397522c09cd51",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2010-05-27T12:36:31Z",
    "title_canon_sha256": "b84758178b9243fa1cb0c19bdfab7128ccb21bf19e121def356c611a827881d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.5048",
    "kind": "arxiv",
    "version": 4
  }
}