Pith Number

pith:BA4DDYMF

pith:2015:BA4DDYMFUV7IK5UP7ZWBFDSRQF

not attested not anchored not stored refs pending

Existence of periodic solutions of the FitzHugh-Nagumo equations for an explicit range of the small parameter

Aleksander Czechowski, Piotr Zgliczy\'nski

arxiv:1502.02451 v4 · 2015-02-09 · 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{BA4DDYMFUV7IK5UP7ZWBFDSRQF}

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	2026-05-18T01:04:54.102094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

083831e185a57e85768ffe6c128e51816b8c4f1527017e95f8606625f039c946

Aliases

arxiv: 1502.02451 · arxiv_version: 1502.02451v4 · doi: 10.48550/arxiv.1502.02451 · pith_short_12: BA4DDYMFUV7I · pith_short_16: BA4DDYMFUV7IK5UP · pith_short_8: BA4DDYMF

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/BA4DDYMFUV7IK5UP7ZWBFDSRQF \
  | 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: 083831e185a57e85768ffe6c128e51816b8c4f1527017e95f8606625f039c946

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "941b46bc2a8673dd1b7f6f13d69a08a57d4969f47e3e051466b72cd9c6bdb697",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-02-09T12:02:32Z",
    "title_canon_sha256": "234c5019e5c529eb4af2aa344f2e1e3c83e0796ca66c0570a4d3e33a2c951d39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02451",
    "kind": "arxiv",
    "version": 4
  }
}