Pith Number

pith:PUZEKH5H

pith:2026:PUZEKH5HZ3ABGVLWR6RK2O2CTP

not attested not anchored not stored refs pending

FGFRFT: Fast Graph Fractional Fourier Transform via Exact Spectral Splitting and Fourier-Series Approximation

Feiyue Zhao, Manjun Cui, Mingzhi Wang, Sen Shi, Yangfan He, Zhichao Zhang, Ziqi Yan

arxiv:2602.20870 v2 · 2026-02-24 · eess.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{PUZEKH5HZ3ABGVLWR6RK2O2CTP}

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	2026-05-20T00:03:06.561678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d32451fa7cec01355768fa2ad3b429bc4c288981a8a94874f0a51325f3660df

Aliases

arxiv: 2602.20870 · arxiv_version: 2602.20870v2 · doi: 10.48550/arxiv.2602.20870 · pith_short_12: PUZEKH5HZ3AB · pith_short_16: PUZEKH5HZ3ABGVLW · pith_short_8: PUZEKH5H

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/PUZEKH5HZ3ABGVLWR6RK2O2CTP \
  | 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: 7d32451fa7cec01355768fa2ad3b429bc4c288981a8a94874f0a51325f3660df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2a5da99aadf2541bbedbf7d98de1711760105a9d60b6c1f95164765e9fbe427",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2026-02-24T13:14:25Z",
    "title_canon_sha256": "a3a968ec22aaed1161f30bbf61a6269bb9425d5cc178239f889b4cf7958016fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.20870",
    "kind": "arxiv",
    "version": 2
  }
}