Pith Number

pith:HVG47OVC

pith:2008:HVG47OVC336XZ6KF7KDQFKYCKY

not attested not anchored not stored refs pending

Error Correction Capability of Column-Weight-Three LDPC Codes: Part II

Bane Vasic, Dung Viet Nguyen, Michael W. Marcellin, Shashi Kiran Chilappagari

arxiv:0807.3582 v1 · 2008-07-23 · 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{HVG47OVC336XZ6KF7KDQFKYCKY}

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	2026-05-18T00:59:11.698671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d4dcfbaa2defd7cf945fa8702ab02560ee616ca7f17ba439b3b7e8b116a2065

Aliases

arxiv: 0807.3582 · arxiv_version: 0807.3582v1 · doi: 10.48550/arxiv.0807.3582 · pith_short_12: HVG47OVC336X · pith_short_16: HVG47OVC336XZ6KF · pith_short_8: HVG47OVC

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/HVG47OVC336XZ6KF7KDQFKYCKY \
  | 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: 3d4dcfbaa2defd7cf945fa8702ab02560ee616ca7f17ba439b3b7e8b116a2065

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "819285dc6ceff678983700b9c0f8bbe616ac817bc31e61b00fd67ef9d3898a92",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2008-07-23T01:04:27Z",
    "title_canon_sha256": "63d202f689ac018a82c8efe19d6dd4581480f818539099863bafb6a625588132"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.3582",
    "kind": "arxiv",
    "version": 1
  }
}