Pith Number

pith:OQNQHL3P

pith:2017:OQNQHL3PSXEE257XPK32HI4WBS

not attested not anchored not stored refs pending

BP-LED decoding algorithm for LDPC codes over AWGN channels

Boris D. Kudryashov, Irina E. Bocharova, Vitaly Skachek, Yauhen Yakimenka

arxiv:1705.09507 v1 · 2017-05-26 · 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{OQNQHL3PSXEE257XPK32HI4WBS}

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	2026-05-18T00:43:38.504162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

741b03af6f95c84d77f77ab7a3a3960cb660dd8bd88d3244c16dcc93c63560ae

Aliases

arxiv: 1705.09507 · arxiv_version: 1705.09507v1 · doi: 10.48550/arxiv.1705.09507 · pith_short_12: OQNQHL3PSXEE · pith_short_16: OQNQHL3PSXEE257X · pith_short_8: OQNQHL3P

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/OQNQHL3PSXEE257XPK32HI4WBS \
  | 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: 741b03af6f95c84d77f77ab7a3a3960cb660dd8bd88d3244c16dcc93c63560ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ed2ef161a3640b46cef03a3e082fdb1f68b8a7ea86ff5a962f7ce468b35c5c4",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-05-26T10:02:54Z",
    "title_canon_sha256": "b4dc834fc2610b56adf3deff272aab1f3188aa30285f92a5e5c86940d8f7b0f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.09507",
    "kind": "arxiv",
    "version": 1
  }
}