Pith Number

pith:M3VPVJSW

pith:2019:M3VPVJSWW4OSQEQKFZELTSLC6P

not attested not anchored not stored refs pending

On a $q-$analog of a singularly perturbed problem of irregular type with two complex time variables

Alberto Lastra, St\'ephane Malek

arxiv:1907.04130 v1 · 2019-07-09 · math.CV · math.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M3VPVJSWW4OSQEQKFZELTSLC6P}

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	2026-05-17T23:41:03.253415Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66eafaa656b71d28120a2e48b9c962f3cb51e632ea136bed2476e43bf08eb009

Aliases

arxiv: 1907.04130 · arxiv_version: 1907.04130v1 · doi: 10.48550/arxiv.1907.04130 · pith_short_12: M3VPVJSWW4OS · pith_short_16: M3VPVJSWW4OSQEQK · pith_short_8: M3VPVJSW

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/M3VPVJSWW4OSQEQKFZELTSLC6P \
  | 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: 66eafaa656b71d28120a2e48b9c962f3cb51e632ea136bed2476e43bf08eb009

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c1183790914267afe4288326c12cc952f5d3d63066905780cfd78d8f63700fb",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2019-07-09T13:09:15Z",
    "title_canon_sha256": "557c62d01ba8ac895e0caf81ce53b5b8bde4fa056ad4380929c0e78025d971f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04130",
    "kind": "arxiv",
    "version": 1
  }
}