Pith Number

pith:SQZX4HQA

pith:2001:SQZX4HQAPLHTRTVGMSAJ2YZJME

not attested not anchored not stored refs pending

Implementation of quantum search algorithm using classical Fourier optics

H. B. van Linden van den Heuvell, N. Bhattacharya, R. J. C. Spreeuw

arxiv:quant-ph/0110034 v3 · 2001-10-05 · 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{SQZX4HQAPLHTRTVGMSAJ2YZJME}

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	2026-05-18T01:05:04.778794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94337e1e007acf38cea664809d632961395eb96332bbd741a2925cc48ecacf3d

Aliases

arxiv: quant-ph/0110034 · arxiv_version: quant-ph/0110034v3 · doi: 10.48550/arxiv.quant-ph/0110034 · pith_short_12: SQZX4HQAPLHT · pith_short_16: SQZX4HQAPLHTRTVG · pith_short_8: SQZX4HQA

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/SQZX4HQAPLHTRTVGMSAJ2YZJME \
  | 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: 94337e1e007acf38cea664809d632961395eb96332bbd741a2925cc48ecacf3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd4f69cb3162de4e767ff19bfbbd089c353760a13bbaeaa7a9e76d80674bc239",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2001-10-05T14:10:45Z",
    "title_canon_sha256": "25bf2f3e4d07af7c43747a62b27cde29b05db27fd6ae6448c0b818cd34889f19"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0110034",
    "kind": "arxiv",
    "version": 3
  }
}