Pith Number

pith:KH647VZF

pith:2010:KH647VZF6SPCQDVRNH5T5IHXUJ

not attested not anchored not stored refs pending

Obtaining the Quantum Fourier Transform from the Classical FFT with QR Decomposition

F.D. Sasse, F.L. Marquezino, R. Portugal

arxiv:1005.3730 v1 · 2010-05-20 · quant-ph · cs.CC · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KH647VZF6SPCQDVRNH5T5IHXUJ}

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	2026-05-18T03:55:25.162421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51fdcfd725f49e280eb169fb3ea0f7a2700605349462d07d19da23b08fac69fe

Aliases

arxiv: 1005.3730 · arxiv_version: 1005.3730v1 · doi: 10.48550/arxiv.1005.3730 · pith_short_12: KH647VZF6SPC · pith_short_16: KH647VZF6SPCQDVR · pith_short_8: KH647VZF

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/KH647VZF6SPCQDVRNH5T5IHXUJ \
  | 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: 51fdcfd725f49e280eb169fb3ea0f7a2700605349462d07d19da23b08fac69fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4446ad2983aaa321963cd1ec885768d2ee30c0dab754beef0f82aa75b394c6a",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-05-20T15:08:27Z",
    "title_canon_sha256": "3e165e42680896211c1b10b743ee2b0b38dea12ee49a0559744d23666e8bdcde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.3730",
    "kind": "arxiv",
    "version": 1
  }
}