Pith Number

pith:QBF3KBTW

pith:1998:QBF3KBTWOQRZPAVTG47NJCF4TR

not attested not anchored not stored refs pending

Decoherence Free Subspaces for Quantum Computation

D.A. Lidar (UC Berkeley), I.L. Chuang (IBM San Jose), K.B. Whaley (UC Berkeley)

arxiv:quant-ph/9807004 v2 · 1998-07-01 · quant-ph · math-ph · math.MP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QBF3KBTWOQRZPAVTG47NJCF4TR}

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

3 papers in Pith

Quantum Error Correction Exploiting Quantum Spatial Distribution and Gauge Symmetry

Receipt and verification

First computed	2026-05-18T01:05:00.508273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

804bb5067674239782b3373ed488bc9c4515c467746d9792fffc47ce2ab5a43a

Aliases

arxiv: quant-ph/9807004 · arxiv_version: quant-ph/9807004v2 · doi: 10.48550/arxiv.quant-ph/9807004 · pith_short_12: QBF3KBTWOQRZ · pith_short_16: QBF3KBTWOQRZPAVT · pith_short_8: QBF3KBTW

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/QBF3KBTWOQRZPAVTG47NJCF4TR \
  | 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: 804bb5067674239782b3373ed488bc9c4515c467746d9792fffc47ce2ab5a43a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46d491a5acea77c2316523b04e8bb8a8e6455fa65cd94bee4ca386523e1e504d",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1998-07-01T12:10:38Z",
    "title_canon_sha256": "3c754707fbdd27e9ef9a382fe6305a298efc304ce72c6a19a900f250b834f5ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9807004",
    "kind": "arxiv",
    "version": 2
  }
}