Pith Number

pith:ISLS4SUC

pith:2021:ISLS4SUCXJZ43V2N3W4MGOT67T

not attested not anchored not stored refs pending

FNet: Mixing Tokens with Fourier Transforms

Ilya Eckstein, James Lee-Thorp, Joshua Ainslie, Santiago Ontanon

arxiv:2105.03824 v4 · 2021-05-09 · cs.CL · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ISLS4SUCXJZ43V2N3W4MGOT67T}

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.

Cited by

11 papers in Pith

FourierQK: Spectral Preprocessing of Query-Key Projections Improves Transformer Attention

Chiaroscuro Attention: Spending Compute in the Dark

Beyond Sinusoids: A Morlet Wavelet Framework for Transformer Positional Encoding

Blurry Window Attention

Fourier Compressor: Frequency-Domain Visual Token Compression for Vision-Language Models

Receipt and verification

First computed	2026-07-05T04:26:45.111472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44972e4a82ba73cdd74dddb8c33a7efcceb65af6b82b8f4c183027eb8a854e43

Aliases

arxiv: 2105.03824 · arxiv_version: 2105.03824v4 · doi: 10.48550/arxiv.2105.03824 · pith_short_12: ISLS4SUCXJZ4 · pith_short_16: ISLS4SUCXJZ43V2N · pith_short_8: ISLS4SUC

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/ISLS4SUCXJZ43V2N3W4MGOT67T \
  | 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: 44972e4a82ba73cdd74dddb8c33a7efcceb65af6b82b8f4c183027eb8a854e43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0c228284009d8021dac7eecadd69a3e3b4bd2894e1b4f33f7aea16823232930",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-05-09T03:32:48Z",
    "title_canon_sha256": "ed9234676b9629c768996824edc1a6978040d0cc45a8a057cb2517104f430a27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.03824",
    "kind": "arxiv",
    "version": 4
  }
}