Pith Number

pith:B23GFGJ2

pith:2008:B23GFGJ2DNWTSUL2BQHVT2IWRG

not attested not anchored not stored refs pending

Universal quantum computation with quantum-dot cellular automata in dephasing-free subspace

M. Feng, W. M. Zhang, Z. Y. Xu

arxiv:0801.4617 v2 · 2008-01-30 · 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{B23GFGJ2DNWTSUL2BQHVT2IWRG}

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	2026-07-04T17:30:50.761835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0eb662993a1b6d39517a0c0f59e91689916b446af9a7f2e566153f2197f8feda

Aliases

arxiv: 0801.4617 · arxiv_version: 0801.4617v2 · doi: 10.48550/arxiv.0801.4617 · pith_short_12: B23GFGJ2DNWT · pith_short_16: B23GFGJ2DNWTSUL2 · pith_short_8: B23GFGJ2

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/B23GFGJ2DNWTSUL2BQHVT2IWRG \
  | 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: 0eb662993a1b6d39517a0c0f59e91689916b446af9a7f2e566153f2197f8feda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25b8781f09436a1182af02dd309890584eb2d0c0816a88e095e273dc32ffbc11",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2008-01-30T08:23:56Z",
    "title_canon_sha256": "9eef2efc3920f442213ceeae19bd08c835a5bb18368f51b61cf48e51f39411de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.4617",
    "kind": "arxiv",
    "version": 2
  }
}