Pith Number

pith:DPWQEKNT

pith:1996:DPWQEKNTP27JXYIQFX4G6TX6IO

not attested not anchored not stored refs pending

Perfect Quantum Error Correction Code

Cesar Miquel, Juan Pablo Paz, Raymond Laflamme, Wojciech Hubert Zurek

arxiv:quant-ph/9602019 v1 · 1996-02-27 · 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{DPWQEKNTP27JXYIQFX4G6TX6IO}

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

2 papers in Pith

Preparation Circuits for Matrix Product States by Classical Variational Disentanglement

The Heisenberg Representation of Quantum Computers

Receipt and verification

First computed	2026-07-04T14:47:04.171924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bed0229b37ebe9be1102df86f4efe43baa74d14fa4de3fae9d2bb11bcbe4bac

Aliases

arxiv: quant-ph/9602019 · arxiv_version: quant-ph/9602019v1 · doi: 10.48550/arxiv.quant-ph/9602019 · pith_short_12: DPWQEKNTP27J · pith_short_16: DPWQEKNTP27JXYIQ · pith_short_8: DPWQEKNT

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/DPWQEKNTP27JXYIQFX4G6TX6IO \
  | 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: 1bed0229b37ebe9be1102df86f4efe43baa74d14fa4de3fae9d2bb11bcbe4bac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25b83d2fafc5d82525f7463b103a66feadfac09610d54db498b77f0b68f61ab6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1996-02-27T17:27:56Z",
    "title_canon_sha256": "8456e3753951eb290fbf359b5f1c868c1b97c47b19c258e40dc817b0a6e1b6c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9602019",
    "kind": "arxiv",
    "version": 1
  }
}