Pith Number

pith:VOQQPNGX

pith:2018:VOQQPNGXMMSJDRAHGN2WKHUCP7

not attested not anchored not stored refs pending

Optimization of Bit Mapping and Quantized Decoding for Off-the-Shelf Protograph LDPC Codes with Application to IEEE 802.3ca

Fabian Steiner, Gerhard Kramer

arxiv:1810.00469 v1 · 2018-09-30 · 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{VOQQPNGXMMSJDRAHGN2WKHUCP7}

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	2026-05-18T00:04:26.070634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aba107b4d7632491c4073375651e827ff436374a431a42e35ea5c0f992d3356a

Aliases

arxiv: 1810.00469 · arxiv_version: 1810.00469v1 · doi: 10.48550/arxiv.1810.00469 · pith_short_12: VOQQPNGXMMSJ · pith_short_16: VOQQPNGXMMSJDRAH · pith_short_8: VOQQPNGX

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/VOQQPNGXMMSJDRAHGN2WKHUCP7 \
  | 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: aba107b4d7632491c4073375651e827ff436374a431a42e35ea5c0f992d3356a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7524ea81896a2033dceefa076cbdc4f9d8b682454de7e194c6d21bcafc8fc94c",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-09-30T21:33:33Z",
    "title_canon_sha256": "ceb822bcbcbd13ee2e804b4a9b3ed428de14c43cb5b888404082590f9e90d1ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.00469",
    "kind": "arxiv",
    "version": 1
  }
}