Pith Number

pith:5UVXJJON

pith:2009:5UVXJJONGAC4I4IMJHTEO4D4VL

not attested not anchored not stored refs pending

On the Dynamics of the Error Floor Behavior in (Regular) LDPC Codes

Christian Schlegel, Shuai Zhang

arxiv:0902.1786 v2 · 2009-02-11 · 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{5UVXJJONGAC4I4IMJHTEO4D4VL}

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	2026-05-18T02:24:56.462306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed2b74a5cd3005c4710c49e647707caacd2ae02ec704726d539b210ec138a119

Aliases

arxiv: 0902.1786 · arxiv_version: 0902.1786v2 · doi: 10.48550/arxiv.0902.1786 · pith_short_12: 5UVXJJONGAC4 · pith_short_16: 5UVXJJONGAC4I4IM · pith_short_8: 5UVXJJON

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/5UVXJJONGAC4I4IMJHTEO4D4VL \
  | 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: ed2b74a5cd3005c4710c49e647707caacd2ae02ec704726d539b210ec138a119

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2e6210e456c1b87108a6cf69201350876a4df054305c79dd2dfa4a6f5bf8f37",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-02-11T00:29:55Z",
    "title_canon_sha256": "501d14449abf420fd899f15f0651870ee855e678a4f677445d9d987bbcb7e96b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1786",
    "kind": "arxiv",
    "version": 2
  }
}