Pith Number

pith:SJ2LHQT2

pith:2025:SJ2LHQT2UB7R4VF5GUI3WHHN6L

not attested not anchored not stored refs pending

FitzHugh-Nagumo equation: bifurcations, slow-fast system and dynamics near infinity

Alexandre A. P. Rodrigues, Nasrin Sadri

arxiv:2507.01623 v4 · 2025-07-02 · 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{SJ2LHQT2UB7R4VF5GUI3WHHN6L}

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	2026-06-02T02:04:06.885869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9274b3c27aa07f1e54bd3511bb1cedf2f866c2046db78f2908a79ef4d6034095

Aliases

arxiv: 2507.01623 · arxiv_version: 2507.01623v4 · doi: 10.48550/arxiv.2507.01623 · pith_short_12: SJ2LHQT2UB7R · pith_short_16: SJ2LHQT2UB7R4VF5 · pith_short_8: SJ2LHQT2

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/SJ2LHQT2UB7R4VF5GUI3WHHN6L \
  | 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: 9274b3c27aa07f1e54bd3511bb1cedf2f866c2046db78f2908a79ef4d6034095

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "465c5d18ece8acaf486c9d3a2b0b2e4fa0f93c8ed12b2a593b8c3d7237110f46",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2025-07-02T11:52:39Z",
    "title_canon_sha256": "8f7862cca7125ba675b432681044441d4c8882261d5432c4706a1dfbc6bd4d80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.01623",
    "kind": "arxiv",
    "version": 4
  }
}