Pith Number

pith:NJ6PCD5O

pith:2014:NJ6PCD5O6CQT3XRWVAJ33QTYXU

not attested not anchored not stored refs pending

Quasi-Cyclic LDPC Codes based on Pre-Lifted Protographs

Daniel J. Costello Jr, David G. M. Mitchell, Roxana Smarandache

arxiv:1407.5364 v1 · 2014-07-21 · 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{NJ6PCD5O6CQT3XRWVAJ33QTYXU}

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	2026-05-18T02:47:14.233559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a7cf10faef0a13dde36a813bdc278bd3390e036af65a9cf407a8b82461807d9

Aliases

arxiv: 1407.5364 · arxiv_version: 1407.5364v1 · doi: 10.48550/arxiv.1407.5364 · pith_short_12: NJ6PCD5O6CQT · pith_short_16: NJ6PCD5O6CQT3XRW · pith_short_8: NJ6PCD5O

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/NJ6PCD5O6CQT3XRWVAJ33QTYXU \
  | 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: 6a7cf10faef0a13dde36a813bdc278bd3390e036af65a9cf407a8b82461807d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f38c4335ba3b715ffca4c2cb85ede551551b88a8fe416b6fcbc1b703efefb504",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-07-21T02:45:23Z",
    "title_canon_sha256": "d46045e46502680584e6586fb6896ae4cb8087f5484b0d94723eb5d1ee8f253e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.5364",
    "kind": "arxiv",
    "version": 1
  }
}