Pith Number

pith:OHH5WKDZ

pith:2009:OHH5WKDZSD6WFLV4FCSPV6E2FO

not attested not anchored not stored refs pending

Universal quantum computation using the discrete time quantum walk

Matthew Everitt, Matthew Trevers, Neil B. Lovett, Sally Cooper, Viv Kendon

arxiv:0910.1024 v3 · 2009-10-06 · 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{OHH5WKDZSD6WFLV4FCSPV6E2FO}

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	2026-07-04T17:27:55.837392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71cfdb287990fd62aebc28a4faf89a2b810a1b9933138308ed4ec34ee13cda34

Aliases

arxiv: 0910.1024 · arxiv_version: 0910.1024v3 · doi: 10.48550/arxiv.0910.1024 · pith_short_12: OHH5WKDZSD6W · pith_short_16: OHH5WKDZSD6WFLV4 · pith_short_8: OHH5WKDZ

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/OHH5WKDZSD6WFLV4FCSPV6E2FO \
  | 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: 71cfdb287990fd62aebc28a4faf89a2b810a1b9933138308ed4ec34ee13cda34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8283cf7fe354732232504317081bf3b756aa9e660cca70232b7f72705cc6b58",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-10-06T16:01:23Z",
    "title_canon_sha256": "f7bfbaa344011bc61cfb350b619d8328cd2372361285b165219eb965a29378bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.1024",
    "kind": "arxiv",
    "version": 3
  }
}