Pith Number

pith:HQG5XRX5

pith:2015:HQG5XRX5LYPDB3RDVM5KKM6ONA

not attested not anchored not stored refs pending

On the periodic solutions of discontinuous piecewise differential systems

Douglas Duarte Novaes, Jaume Llibre

arxiv:1504.03008 v1 · 2015-04-12 · 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{HQG5XRX5LYPDB3RDVM5KKM6ONA}

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	2026-05-18T02:18:59.432202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c0ddbc6fd5e1e30ee23ab3aa533ce6836debcff345d115966fadc987183bb66

Aliases

arxiv: 1504.03008 · arxiv_version: 1504.03008v1 · doi: 10.48550/arxiv.1504.03008 · pith_short_12: HQG5XRX5LYPD · pith_short_16: HQG5XRX5LYPDB3RD · pith_short_8: HQG5XRX5

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/HQG5XRX5LYPDB3RDVM5KKM6ONA \
  | 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: 3c0ddbc6fd5e1e30ee23ab3aa533ce6836debcff345d115966fadc987183bb66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4af5d93b0f72c87cadac8c1c1da2441e1bd6ff47af9d3aa9f041966386e5faaf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-04-12T19:12:08Z",
    "title_canon_sha256": "82fba1956e54c45b774f8295532279f94add6fa9bd914090d9640028b43c98d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03008",
    "kind": "arxiv",
    "version": 1
  }
}