Pith Number

pith:QMWTH2NC

pith:2017:QMWTH2NCNOCW3J7KJBGWRVY7GN

not attested not anchored not stored refs pending

Topological classification of limit periodic sets of polynomial planar vector fields

Andr\'e Belotto da Silva, Jos\'e Gin\'es Esp\'in Buend\'ia

arxiv:1702.04965 v2 · 2017-02-16 · 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{QMWTH2NCNOCW3J7KJBGWRVY7GN}

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	2026-05-18T00:30:34.218391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

832d33e9a26b856da7ea484d68d71f3361fc9e59df7e51dc4f5eeead4a93257d

Aliases

arxiv: 1702.04965 · arxiv_version: 1702.04965v2 · doi: 10.48550/arxiv.1702.04965 · pith_short_12: QMWTH2NCNOCW · pith_short_16: QMWTH2NCNOCW3J7K · pith_short_8: QMWTH2NC

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/QMWTH2NCNOCW3J7KJBGWRVY7GN \
  | 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: 832d33e9a26b856da7ea484d68d71f3361fc9e59df7e51dc4f5eeead4a93257d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d01fc05c34c331054a7bcb0606a5f41d16e5bd7b9cc1a6304a73e1eb2e42f20",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2017-02-16T13:55:56Z",
    "title_canon_sha256": "5fc1965f225640587d5fcc51b375631bbb6438efed3e4a4db7056b9682a13262"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.04965",
    "kind": "arxiv",
    "version": 2
  }
}