Pith Number

pith:KNF5PXKD

pith:2012:KNF5PXKDREI75GLFZOLEBRA6IJ

not attested not anchored not stored refs pending

Reduced-Complexity Column-Layered Decoding and Implementation for LDPC Codes

Xinmiao Zhang, Zhiqiang Cui, Zhongfeng Wang

arxiv:1204.2577 v1 · 2012-04-11 · 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{KNF5PXKDREI75GLFZOLEBRA6IJ}

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	2026-05-18T03:58:04.000292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

534bd7dd438911fe9965cb9640c41e4278d3c79b86513ef25b74f97d12d69493

Aliases

arxiv: 1204.2577 · arxiv_version: 1204.2577v1 · doi: 10.48550/arxiv.1204.2577 · pith_short_12: KNF5PXKDREI7 · pith_short_16: KNF5PXKDREI75GLF · pith_short_8: KNF5PXKD

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/KNF5PXKDREI75GLFZOLEBRA6IJ \
  | 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: 534bd7dd438911fe9965cb9640c41e4278d3c79b86513ef25b74f97d12d69493

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a5265b426caf08f9b78964d208559fdfa820433a1190787a58e0682b5c51fd0",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-04-11T21:58:52Z",
    "title_canon_sha256": "ccf45d24b6adfe7861c36db9ac3ba50a659650ea8c658e557e9e6c73bac3dd77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2577",
    "kind": "arxiv",
    "version": 1
  }
}