Pith Number

pith:KLY7BTWM

pith:2002:KLY7BTWMLTVEAXBRMRMYOFDR5H

not attested not anchored not stored refs pending

Quantum Computing and a Unified Approach to Fast Unitary Transforms

(2) Texas A&M University), Andreas Klappenecker (2) ((1) UT San Antonio, CUNY, Sos S. Agaian (1)

arxiv:quant-ph/0201120 v1 · 2002-01-26 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KLY7BTWMLTVEAXBRMRMYOFDR5H}

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	2026-05-18T01:38:02.171452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52f1f0cecc5cea405c316459871471e9ebf5f85f3d631b0b1356eb61dedfb8b7

Aliases

arxiv: quant-ph/0201120 · arxiv_version: quant-ph/0201120v1 · doi: 10.48550/arxiv.quant-ph/0201120 · pith_short_12: KLY7BTWMLTVE · pith_short_16: KLY7BTWMLTVEAXBR · pith_short_8: KLY7BTWM

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/KLY7BTWMLTVEAXBRMRMYOFDR5H \
  | 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: 52f1f0cecc5cea405c316459871471e9ebf5f85f3d631b0b1356eb61dedfb8b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8efdf733e7499168196119b2e126b65a9738ffa66671bbf91f3e47702ec48a26",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-01-26T00:58:42Z",
    "title_canon_sha256": "c1486726c55ee917b790e9b03577864f3a062b9141a45cb5bbadf683ee667ed0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0201120",
    "kind": "arxiv",
    "version": 1
  }
}