Pith Number

pith:CD5ID6VH

pith:2012:CD5ID6VHCCSFE36ESUJHX6LV2L

not attested not anchored not stored refs pending

A Construction of Quantum LDPC Codes from Cayley Graphs

Alain Couvreur, Gilles Z\'emor, Nicolas Delfosse

arxiv:1206.2656 v3 · 2012-06-12 · cs.IT · math.CO · 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{CD5ID6VHCCSFE36ESUJHX6LV2L}

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	2026-05-18T03:04:24.334512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10fa81faa710a4526fc495127bf975d2f25e1689675d050cac407bcf9c52c166

Aliases

arxiv: 1206.2656 · arxiv_version: 1206.2656v3 · doi: 10.48550/arxiv.1206.2656 · pith_short_12: CD5ID6VHCCSF · pith_short_16: CD5ID6VHCCSFE36E · pith_short_8: CD5ID6VH

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/CD5ID6VHCCSFE36ESUJHX6LV2L \
  | 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: 10fa81faa710a4526fc495127bf975d2f25e1689675d050cac407bcf9c52c166

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "494c8437be1c2175ba0555e3a7e19412fbb84fc5d7c29f24e561eb824a134187",
    "cross_cats_sorted": [
      "math.CO",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-06-12T20:11:53Z",
    "title_canon_sha256": "c03facd8dc6eb3065b782d652ca70137e1b1b7fc141791ef198f563210b4d43c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.2656",
    "kind": "arxiv",
    "version": 3
  }
}