Pith Number

pith:LQP74UQX

pith:2005:LQP74UQXCSKSAU7EXK37BH2ZVH

not attested not anchored not stored refs pending

The Benefit of Thresholding in LP Decoding of LDPC Codes

Jon Feldman, Pascal O. Vontobel, Ralf Koetter

arxiv:cs/0508014 v1 · 2005-08-02 · 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{LQP74UQXCSKSAU7EXK37BH2ZVH}

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	2026-05-18T00:58:26.798826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c1ffe521714952053e4bab7f09f59a9f2fe669d2fec8ae9516c11771b135893

Aliases

arxiv: cs/0508014 · arxiv_version: cs/0508014v1 · doi: 10.48550/arxiv.cs/0508014 · pith_short_12: LQP74UQXCSKS · pith_short_16: LQP74UQXCSKSAU7E · pith_short_8: LQP74UQX

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/LQP74UQXCSKSAU7EXK37BH2ZVH \
  | 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: 5c1ffe521714952053e4bab7f09f59a9f2fe669d2fec8ae9516c11771b135893

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "100c11b72d14dd7dc0745a54638ce9bb165c7d69dedb249bd47aaf348d2979de",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "",
    "primary_cat": "cs.IT",
    "submitted_at": "2005-08-02T16:52:11Z",
    "title_canon_sha256": "4a72b108697b94cf13bab53725188770f7b3fd87398b55aeb1ceac64cf77678f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0508014",
    "kind": "arxiv",
    "version": 1
  }
}