Pith Number

pith:3SKU4O4M

pith:2015:3SKU4O4MVWJ5BLF4FNIAJMKQ4X

not attested not anchored not stored refs pending

Radix-2 Fast Hartley Transform Revisited

H.A.N., H.M. de Oliveira, R.M. Campello de Souza, V.L. Sousa

arxiv:1503.03794 v1 · 2015-03-12 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3SKU4O4MVWJ5BLF4FNIAJMKQ4X}

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	2026-05-18T02:24:27.314307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc954e3b8cad93d0acbc2b5004b150e5dbe8b185e41127558264c68a2e8915ec

Aliases

arxiv: 1503.03794 · arxiv_version: 1503.03794v1 · doi: 10.48550/arxiv.1503.03794 · pith_short_12: 3SKU4O4MVWJ5 · pith_short_16: 3SKU4O4MVWJ5BLF4 · pith_short_8: 3SKU4O4M

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/3SKU4O4MVWJ5BLF4FNIAJMKQ4X \
  | 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: dc954e3b8cad93d0acbc2b5004b150e5dbe8b185e41127558264c68a2e8915ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "212b3a0ec8c892e1ce0393a2a2a19e3c67d8f017515663979ffe3499a262ab33",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2015-03-12T16:17:51Z",
    "title_canon_sha256": "fa840eb90dd860525eb984b802dded412add6a31f32b9950aab90782397486ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.03794",
    "kind": "arxiv",
    "version": 1
  }
}