Pith Number

pith:GR6ETOI5

pith:2009:GR6ETOI5ZYBI3HLPJNN6MH63MW

not attested not anchored not stored refs pending

Two-Bit Message Passing Decoders for LDPC Codes Over the Binary Symmetric Channel

Bane Vasic, David Declercq, Lucile Sassatelli, Shashi Kiran Chilappagari

arxiv:0901.2090 v3 · 2009-01-14 · 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{GR6ETOI5ZYBI3HLPJNN6MH63MW}

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	2026-05-18T00:58:20.414641Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

347c49b91dce028d9d6f4b5be61fdb65a4dd4450713ce5bc5661e355b95e13c9

Aliases

arxiv: 0901.2090 · arxiv_version: 0901.2090v3 · doi: 10.48550/arxiv.0901.2090 · pith_short_12: GR6ETOI5ZYBI · pith_short_16: GR6ETOI5ZYBI3HLP · pith_short_8: GR6ETOI5

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/GR6ETOI5ZYBI3HLPJNN6MH63MW \
  | 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: 347c49b91dce028d9d6f4b5be61fdb65a4dd4450713ce5bc5661e355b95e13c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "652c66a23ab0a4323a4874f1848f155b9235102ceb5b5d85a66866448ab093da",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-01-14T18:59:53Z",
    "title_canon_sha256": "e4a7cc0fa5ded157fe2095b43ebd8b3260be04402cfc1612dc834a46048d5108"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.2090",
    "kind": "arxiv",
    "version": 3
  }
}