Pith Number

pith:JDMSI5IA

pith:2015:JDMSI5IACJEZF62TMSPZNEFGH2

not attested not anchored not stored refs pending

A Factorization Scheme for Some Discrete Hartley Transform Matrices

H. M. de Oliveira, R. J. Cintra, R. M. Campello de Souza

arxiv:1502.01038 v1 · 2015-02-01 · cs.NA · math.NA · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JDMSI5IACJEZF62TMSPZNEFGH2}

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	2026-05-18T02:27:56.698291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48d9247500124992fb53649f9690a63ea1894ee3ca914ede2359d74cf654ce89

Aliases

arxiv: 1502.01038 · arxiv_version: 1502.01038v1 · doi: 10.48550/arxiv.1502.01038 · pith_short_12: JDMSI5IACJEZ · pith_short_16: JDMSI5IACJEZF62T · pith_short_8: JDMSI5IA

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/JDMSI5IACJEZF62TMSPZNEFGH2 \
  | 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: 48d9247500124992fb53649f9690a63ea1894ee3ca914ede2359d74cf654ce89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f020306e2b44f5959c8705c102d328a723f98dd9871d03b9655f02dae8cd051f",
    "cross_cats_sorted": [
      "math.NA",
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2015-02-01T16:06:29Z",
    "title_canon_sha256": "91fd1391ee1863fea27b5cfe2ca50ff1a00a67f3a8f10901e9344ec7f0f56040"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.01038",
    "kind": "arxiv",
    "version": 1
  }
}