Pith Number

pith:LEPPWZNM

pith:2016:LEPPWZNMM3NKD6AVSBU2ALYGFU

not attested not anchored not stored refs pending

Discrete fractional Fourier transform: Vandermonde approach

Francisco Soto-Eguibar, H\'ector M. Moya-Cessa

arxiv:1604.06686 v1 · 2016-04-19 · math.GM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LEPPWZNMM3NKD6AVSBU2ALYGFU}

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	2026-05-18T01:16:28.426656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

591efb65ac66daa1f8159069a02f062d318ad4f2a67868416692a068797acba9

Aliases

arxiv: 1604.06686 · arxiv_version: 1604.06686v1 · doi: 10.48550/arxiv.1604.06686 · pith_short_12: LEPPWZNMM3NK · pith_short_16: LEPPWZNMM3NKD6AV · pith_short_8: LEPPWZNM

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/LEPPWZNMM3NKD6AVSBU2ALYGFU \
  | 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: 591efb65ac66daa1f8159069a02f062d318ad4f2a67868416692a068797acba9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b95e6b7c1515a81258886cf7c4c575a210422e693caa7c3157148cc6ed7813da",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2016-04-19T21:54:03Z",
    "title_canon_sha256": "24cdbf828305309b6b1d96a8d733aa237c7f5bb3dffd881de4cf308cdac9c587"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.06686",
    "kind": "arxiv",
    "version": 1
  }
}