Pith Number

pith:UJ5JZCWR

pith:2026:UJ5JZCWRBTP2DUMNXMLSR6UFJY

not attested not anchored not stored refs pending

Pointwise behavior of SU(1,1) nonlinear Fourier transform

Sergey A. Denisov

arxiv:2605.25108 v1 · 2026-05-24 · math.CA · math-ph · math.AP · math.DS · math.MP · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UJ5JZCWRBTP2DUMNXMLSR6UFJY}

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	2026-05-26T02:04:18.392104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a27a9c8ad10cdfa1d18dbb1728fa854e2c3f65d7198a923c551e7dd9c5e4c056

Aliases

arxiv: 2605.25108 · arxiv_version: 2605.25108v1 · doi: 10.48550/arxiv.2605.25108 · pith_short_12: UJ5JZCWRBTP2 · pith_short_16: UJ5JZCWRBTP2DUMN · pith_short_8: UJ5JZCWR

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/UJ5JZCWRBTP2DUMNXMLSR6UFJY \
  | 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: a27a9c8ad10cdfa1d18dbb1728fa854e2c3f65d7198a923c551e7dd9c5e4c056

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1e81eeb4bb31aa06676aa3318d6325c559fe273b7938188eecf82ad430f1160",
    "cross_cats_sorted": [
      "math-ph",
      "math.AP",
      "math.DS",
      "math.MP",
      "math.SP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2026-05-24T14:49:11Z",
    "title_canon_sha256": "ebd7c4742e50f90fe66adb86dcf4fa8fe2bba958ad029fb907783bac52c250cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.25108",
    "kind": "arxiv",
    "version": 1
  }
}