Pith Number

pith:UPFTBOLW

pith:2021:UPFTBOLWHZ3OWWIH2XPHZXBPWN

not attested not anchored not stored refs pending

Fourier, Gabor, Morlet or Wigner: Comparison of Time-Frequency Transforms

Stefan Scholl

arxiv:2101.06707 v1 · 2021-01-17 · 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{UPFTBOLWHZ3OWWIH2XPHZXBPWN}

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

1 paper in Pith

RadDet: A Wideband Dataset for Real-Time Radar Spectrum Detection

Receipt and verification

First computed	2026-07-05T02:07:36.413178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3cb30b9763e76eb5907d5de7cdc2fb352f8ffe986689157bc1eea1d08995426

Aliases

arxiv: 2101.06707 · arxiv_version: 2101.06707v1 · doi: 10.48550/arxiv.2101.06707 · pith_short_12: UPFTBOLWHZ3O · pith_short_16: UPFTBOLWHZ3OWWIH · pith_short_8: UPFTBOLW

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/UPFTBOLWHZ3OWWIH2XPHZXBPWN \
  | 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: a3cb30b9763e76eb5907d5de7cdc2fb352f8ffe986689157bc1eea1d08995426

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "676574745f8dfcedb24b178954fa9275dd541a54fb3e369110360d2e75ae57a0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2021-01-17T16:39:33Z",
    "title_canon_sha256": "1c4a87a80fea57fb92dc7c7d29bfd5078365cb2eddef36fc7dde3b771f9674c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.06707",
    "kind": "arxiv",
    "version": 1
  }
}