Pith Number

pith:OZFNW573

pith:2002:OZFNW573TYTVHCHKZIDUD7I7E4

not attested not anchored not stored refs pending

Exponential algorithmic speedup by quantum walk

Andrew M. Childs, Daniel A. Spielman, Edward Farhi, Enrico Deotto, Richard Cleve, Sam Gutmann

arxiv:quant-ph/0209131 v2 · 2002-09-24 · 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{OZFNW573TYTVHCHKZIDUD7I7E4}

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.

Cited by

1 paper in Pith

Matrix Inversion by Quantum Walk

Receipt and verification

First computed	2026-07-04T14:46:01.471293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

764adb77fb9e275388eaca0741fd1f2714bddd2873572ba65ef8da22cc3581fd

Aliases

arxiv: quant-ph/0209131 · arxiv_version: quant-ph/0209131v2 · doi: 10.48550/arxiv.quant-ph/0209131 · pith_short_12: OZFNW573TYTV · pith_short_16: OZFNW573TYTVHCHK · pith_short_8: OZFNW573

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/OZFNW573TYTVHCHKZIDUD7I7E4 \
  | 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: 764adb77fb9e275388eaca0741fd1f2714bddd2873572ba65ef8da22cc3581fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a4b0aab11ef40c912ebcc02157cfe8f5b801854a51be66f7316c22b6313cb5b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-09-24T18:43:37Z",
    "title_canon_sha256": "5de8ae4af387e5c8a0452fd311c62389057560fa0ba51465d8a48e92d42ce650"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0209131",
    "kind": "arxiv",
    "version": 2
  }
}