Pith Number

pith:E5PM4QVT

pith:2026:E5PM4QVTO6GLULWV6FW44XO2WF

not attested not anchored not stored refs pending

On the Fast Fourier Transform on SU(2)

Alejandro Uma\~na, Julio Delgado

arxiv:2605.23923 v1 · 2026-04-19 · physics.comp-ph · cs.NA · math.AP · math.NA · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E5PM4QVTO6GLULWV6FW44XO2WF}

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	2026-05-26T00:02:22.125416Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

275ece42b3778cba2ed5f16dce5ddab146d7e62457db45bb252953de16a4204d

Aliases

arxiv: 2605.23923 · arxiv_version: 2605.23923v1 · doi: 10.48550/arxiv.2605.23923 · pith_short_12: E5PM4QVTO6GL · pith_short_16: E5PM4QVTO6GLULWV · pith_short_8: E5PM4QVT

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/E5PM4QVTO6GLULWV6FW44XO2WF \
  | 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: 275ece42b3778cba2ed5f16dce5ddab146d7e62457db45bb252953de16a4204d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bdc32a7b8479d3523885df19cc8bc81fab740e85ff937d0c51e7814b3653801",
    "cross_cats_sorted": [
      "cs.NA",
      "math.AP",
      "math.NA",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2026-04-19T17:38:38Z",
    "title_canon_sha256": "810ae0d065c59cab3e27964ad66ad88f65b7d8610e8ed5aa4c77e9af05743138"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.23923",
    "kind": "arxiv",
    "version": 1
  }
}