Pith Number

pith:LBDVEC6A

pith:2001:LBDVEC6ABTDY5W7CGP73BOFN2Y

not attested not anchored not stored refs pending

Encoded Universality in Physical Implementations of a Quantum Computer

(2) IBM Yorktown, (3) University of Toronto), Berkeley, D.A. Lidar (3), D. Bacon (1), D.P. DiVincenzo (2), J. Kempe (1), K.B. Whaley (1) ((1) University of California

arxiv:quant-ph/0102140 v2 · 2001-02-27 · 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{LBDVEC6ABTDY5W7CGP73BOFN2Y}

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	2026-05-18T01:05:05.028284Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5847520bc00cc78edbe233ffb0b8add61bebd4b0d27482d30fce41791b1cf78e

Aliases

arxiv: quant-ph/0102140 · arxiv_version: quant-ph/0102140v2 · doi: 10.48550/arxiv.quant-ph/0102140 · pith_short_12: LBDVEC6ABTDY · pith_short_16: LBDVEC6ABTDY5W7C · pith_short_8: LBDVEC6A

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/LBDVEC6ABTDY5W7CGP73BOFN2Y \
  | 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: 5847520bc00cc78edbe233ffb0b8add61bebd4b0d27482d30fce41791b1cf78e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34f2199d4c9ab626a10554c97c6f31a095b27bb8a0516ab042df60995fb6a093",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2001-02-27T23:45:02Z",
    "title_canon_sha256": "0a8850736e56012967c079a8147326b6dc94b3030103793a0d47d664c4ee8ebe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0102140",
    "kind": "arxiv",
    "version": 2
  }
}