Pith Number

pith:UGFAQFG5

pith:2015:UGFAQFG5ONGGAO4I7U33NCBII6

not attested not anchored not stored refs pending

A Flexible Implementation of a Matrix Laurent Series-Based 16-Point Fast Fourier and Hartley Transforms

E.J.P. Santos, H.M. de Oliveira, R.C. de Oliveira, R.M. Campello de Souza

arxiv:1502.05880 v1 · 2015-02-20 · cs.NA · cs.DM · 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{UGFAQFG5ONGGAO4I7U33NCBII6}

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	2026-05-18T00:25:08.204945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a18a0814dd734c603b88fd37b6882847b868618eafcda15cb67271b14c940fcc

Aliases

arxiv: 1502.05880 · arxiv_version: 1502.05880v1 · doi: 10.48550/arxiv.1502.05880 · pith_short_12: UGFAQFG5ONGG · pith_short_16: UGFAQFG5ONGGAO4I · pith_short_8: UGFAQFG5

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/UGFAQFG5ONGGAO4I7U33NCBII6 \
  | 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: a18a0814dd734c603b88fd37b6882847b868618eafcda15cb67271b14c940fcc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "189d7d78d2f715433d93e4802be8d5762f78d60b1c99d3042ad93c3216b64bde",
    "cross_cats_sorted": [
      "cs.DM",
      "eess.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2015-02-20T14:14:50Z",
    "title_canon_sha256": "b56954632534c3e3751adf4007b9d7f92c8790d2acbc4dc16270bd8c7b9e43ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.05880",
    "kind": "arxiv",
    "version": 1
  }
}