Pith Number

pith:7WPP3LZ7

pith:2006:7WPP3LZ7WRHYGD3K6CHOXF2HP5

not attested not anchored not stored refs pending

Pseudocodeword weights for non-binary LDPC codes

Christine A. Kelley, Deepak Sridhara, Joachim Rosenthal

arxiv:cs/0605118 v1 · 2006-05-24 · 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{7WPP3LZ7WRHYGD3K6CHOXF2HP5}

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	2026-05-18T00:58:08.816859Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd9efdaf3fb44f830f6af08eeb97477f7109667d4ed1a5098dde8d39384e247f

Aliases

arxiv: cs/0605118 · arxiv_version: cs/0605118v1 · doi: 10.48550/arxiv.cs/0605118 · pith_short_12: 7WPP3LZ7WRHY · pith_short_16: 7WPP3LZ7WRHYGD3K · pith_short_8: 7WPP3LZ7

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/7WPP3LZ7WRHYGD3K6CHOXF2HP5 \
  | 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: fd9efdaf3fb44f830f6af08eeb97477f7109667d4ed1a5098dde8d39384e247f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4d5654a56ad119e572ddc366c3b463bb10ac3fff4699381f4fecd22b0ebdf70",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "",
    "primary_cat": "cs.IT",
    "submitted_at": "2006-05-24T22:03:41Z",
    "title_canon_sha256": "0ed186d463716576f14450ee4e2f2d8fb5eb1e448f10bffb6bd29a3cf3aaba42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0605118",
    "kind": "arxiv",
    "version": 1
  }
}