Pith Number

pith:Q7NF4ANT

pith:2009:Q7NF4ANTLYGPLGKVDVD43VYH6O

not attested not anchored not stored refs pending

Repetition Versus Noiseless Quantum Codes For Correlated Errors

Carlo Cafaro, Stefano Mancini

arxiv:0906.3787 v4 · 2009-06-20 · 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{Q7NF4ANTLYGPLGKVDVD43VYH6O}

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	2026-05-18T02:13:13.596966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87da5e01b35e0cf599551d47cdd707f3a8cb784a4b4f8de438d639c358a55212

Aliases

arxiv: 0906.3787 · arxiv_version: 0906.3787v4 · doi: 10.48550/arxiv.0906.3787 · pith_short_12: Q7NF4ANTLYGP · pith_short_16: Q7NF4ANTLYGPLGKV · pith_short_8: Q7NF4ANT

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/Q7NF4ANTLYGPLGKVDVD43VYH6O \
  | 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: 87da5e01b35e0cf599551d47cdd707f3a8cb784a4b4f8de438d639c358a55212

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "433b94014879b187b2b3741a6465b5fd010b40fc12653b027f7ea187db2129af",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-06-20T08:58:19Z",
    "title_canon_sha256": "ea5252949f02f539017aefc40452eb6e6bd56fc320cadef7dc58a9e92f6a1d48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.3787",
    "kind": "arxiv",
    "version": 4
  }
}