Pith Number

pith:R7JUD5LR

pith:2012:R7JUD5LRXOBXPN3PD6LNXVQECS

not attested not anchored not stored refs pending

A Simplified Min-Sum Decoding Algorithm for Non-Binary LDPC Codes

Chung-Li Wang, Shaohua Yang, Xiaoheng Chen, Zongwang Li

arxiv:1207.5555 v1 · 2012-07-23 · 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{R7JUD5LRXOBXPN3PD6LNXVQECS}

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	2026-05-18T00:57:56.840484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fd341f571bb8377b76f1f96dbd60414b13e29e2972a404e4541280d983ec18c

Aliases

arxiv: 1207.5555 · arxiv_version: 1207.5555v1 · doi: 10.48550/arxiv.1207.5555 · pith_short_12: R7JUD5LRXOBX · pith_short_16: R7JUD5LRXOBXPN3P · pith_short_8: R7JUD5LR

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/R7JUD5LRXOBXPN3PD6LNXVQECS \
  | 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: 8fd341f571bb8377b76f1f96dbd60414b13e29e2972a404e4541280d983ec18c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "598ad0b1547595409746561925a0eb5610b4ce496f1552345d0289e77e86003c",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-07-23T22:46:38Z",
    "title_canon_sha256": "f9d213c4754329191eb192a6161094dee8e779cef19a5b9a4986ccc6f823b180"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5555",
    "kind": "arxiv",
    "version": 1
  }
}