Pith Number

pith:UPOYNDNZ

pith:2013:UPOYNDNZSTJ56NFYRZ3FN4YW2A

not attested not anchored not stored refs pending

Linked-Cluster Technique for Finding the Distance of a Quantum LDPC Code

Alexey A. Kovalev, Ilya Dumer, Leonid P. Pryadko

arxiv:1302.1845 v1 · 2013-02-07 · quant-ph · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UPOYNDNZSTJ56NFYRZ3FN4YW2A}

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	2026-05-18T03:34:14.448131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3dd868db994d3df34b88e7656f316d011fb5ecea38cc826ff45f48733e97b77

Aliases

arxiv: 1302.1845 · arxiv_version: 1302.1845v1 · doi: 10.48550/arxiv.1302.1845 · pith_short_12: UPOYNDNZSTJ5 · pith_short_16: UPOYNDNZSTJ56NFY · pith_short_8: UPOYNDNZ

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/UPOYNDNZSTJ56NFYRZ3FN4YW2A \
  | 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: a3dd868db994d3df34b88e7656f316d011fb5ecea38cc826ff45f48733e97b77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16e0336e0ca640b7cc34df5f0a7e0f317b064e89de14a9df7e1d209a475a562b",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-02-07T20:00:07Z",
    "title_canon_sha256": "fa91c0f56da97dae57a3dc138d0c3f75ca4055463b8e1f7924ea660ac1216d88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.1845",
    "kind": "arxiv",
    "version": 1
  }
}