Pith Number

pith:E55SNBZV

pith:2010:E55SNBZVYUXEZIGB7DKPNSJRNS

not attested not anchored not stored refs pending

Canard Cycles and Poincar\'e Index of Non-Smooth Vector Fields on the Plane

Claudio Buzzi, Paulo Ricardo da Silva, Tiago De Carvalho

arxiv:1002.4169 v2 · 2010-02-22 · 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{E55SNBZVYUXEZIGB7DKPNSJRNS}

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	2026-05-18T02:24:38.651755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

277b268735c52e4ca0c1f8d4f6c9316cb1390a44a4ece8e144147708944d48c9

Aliases

arxiv: 1002.4169 · arxiv_version: 1002.4169v2 · doi: 10.48550/arxiv.1002.4169 · pith_short_12: E55SNBZVYUXE · pith_short_16: E55SNBZVYUXEZIGB · pith_short_8: E55SNBZV

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/E55SNBZVYUXEZIGB7DKPNSJRNS \
  | 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: 277b268735c52e4ca0c1f8d4f6c9316cb1390a44a4ece8e144147708944d48c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f9a7e7939e789ce4bd36e8c6dbb5ed1a58bc781562eeb1f61f00d1a31221b6b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2010-02-22T19:13:17Z",
    "title_canon_sha256": "7bdfdc376293acee0f9117e85c0d6aa1f5db53d0464f114035dbf83a17e5686c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.4169",
    "kind": "arxiv",
    "version": 2
  }
}