Pith Number

pith:UIZLR6DU

pith:2013:UIZLR6DUVZSLPHF5BK4EXGTN3U

not attested not anchored not stored refs pending

Finite Length Analysis of LDPC Codes

Gottfried Lechner, Khoa D. Nguyen, Md. Noor-A-Rahim

arxiv:1309.7102 v1 · 2013-09-27 · 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{UIZLR6DUVZSLPHF5BK4EXGTN3U}

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	2026-05-18T03:12:08.030780Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a232b8f874ae64b79cbd0ab84b9a6ddd13f02965f21cc6d9a2109c9cbe52ec46

Aliases

arxiv: 1309.7102 · arxiv_version: 1309.7102v1 · doi: 10.48550/arxiv.1309.7102 · pith_short_12: UIZLR6DUVZSL · pith_short_16: UIZLR6DUVZSLPHF5 · pith_short_8: UIZLR6DU

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/UIZLR6DUVZSLPHF5BK4EXGTN3U \
  | 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: a232b8f874ae64b79cbd0ab84b9a6ddd13f02965f21cc6d9a2109c9cbe52ec46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab6b7edef02f6c8f9cf87998a1f22286fcc59c1991f540cbde60fdf53bcd0321",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-09-27T02:43:17Z",
    "title_canon_sha256": "b37c637bc060146c5ec4c6380cba20b989ff4a92df3a4ae30ae199766d37d9b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.7102",
    "kind": "arxiv",
    "version": 1
  }
}