Pith Number

pith:OLUYPFGG

pith:2011:OLUYPFGGOCZZR75GAQHYRMZXYT

not attested not anchored not stored refs pending

Interleaved Product LDPC Codes

Franco Chiaraluce, Giovanni Cancellieri, Marco Baldi

arxiv:1112.0945 v1 · 2011-12-05 · 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{OLUYPFGGOCZZR75GAQHYRMZXYT}

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	2026-05-18T03:38:05.095725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72e98794c670b398ffa6040f88b337c4d66a096f8baf9cfd3fae490b6c6feec6

Aliases

arxiv: 1112.0945 · arxiv_version: 1112.0945v1 · doi: 10.48550/arxiv.1112.0945 · pith_short_12: OLUYPFGGOCZZ · pith_short_16: OLUYPFGGOCZZR75G · pith_short_8: OLUYPFGG

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/OLUYPFGGOCZZR75GAQHYRMZXYT \
  | 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: 72e98794c670b398ffa6040f88b337c4d66a096f8baf9cfd3fae490b6c6feec6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4236eb6bfb328ad222e38f9788c80d8edf26edeb237d96054e62ba3026e947aa",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-12-05T14:44:02Z",
    "title_canon_sha256": "f6cd3e47608012ef62c0e134949b4e14dff91c2cb3d79900f7db8489ef351f3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.0945",
    "kind": "arxiv",
    "version": 1
  }
}