Pith Number

pith:43HVKFLC

pith:2012:43HVKFLCSSAQQSSE4KZQVB722P

not attested not anchored not stored refs pending

On three-parameter families of Filippov systems -- the fold-saddle singularity

Claudio Aguinaldo Buzzi, Marco Antonio Teixeira, Tiago De Carvalho

arxiv:1210.7528 v1 · 2012-10-29 · 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{43HVKFLCSSAQQSSE4KZQVB722P}

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	2026-05-18T00:54:42.014494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6cf5515629481084a44e2b30a87fad3cc791b111ae1b83da9c90e3145096e4e

Aliases

arxiv: 1210.7528 · arxiv_version: 1210.7528v1 · doi: 10.48550/arxiv.1210.7528 · pith_short_12: 43HVKFLCSSAQ · pith_short_16: 43HVKFLCSSAQQSSE · pith_short_8: 43HVKFLC

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/43HVKFLCSSAQQSSE4KZQVB722P \
  | 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: e6cf5515629481084a44e2b30a87fad3cc791b111ae1b83da9c90e3145096e4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cb0eca6a3166593114f460fee3f537c21604e056e4a3694979edde253065d73",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2012-10-29T00:17:31Z",
    "title_canon_sha256": "a992ea72e89222993d5325a4950ed7b1b99bd87b80a721b60e329637a271172e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.7528",
    "kind": "arxiv",
    "version": 1
  }
}