Pith Number

pith:6M7D4OIG

pith:2011:6M7D4OIGUIKAWO6BJAYA6HIGEX

not attested not anchored not stored refs pending

Design of Finite-Length Irregular Protograph Codes with Low Error Floors over the Binary-Input AWGN Channel Using Cyclic Liftings

Amir H. Banihashemi, Mahmoud Ahmadian-Attari, Reza Asvadi

arxiv:1102.0424 v1 · 2011-02-02 · 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{6M7D4OIGUIKAWO6BJAYA6HIGEX}

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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	2026-05-18T00:58:19.140780Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f33e3e3906a2140b3bc148300f1d0625f7f243d0d8ccf9f53afdab5652ae5506

Aliases

arxiv: 1102.0424 · arxiv_version: 1102.0424v1 · doi: 10.48550/arxiv.1102.0424 · pith_short_12: 6M7D4OIGUIKA · pith_short_16: 6M7D4OIGUIKAWO6B · pith_short_8: 6M7D4OIG

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/6M7D4OIGUIKAWO6BJAYA6HIGEX \
  | 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: f33e3e3906a2140b3bc148300f1d0625f7f243d0d8ccf9f53afdab5652ae5506

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05532f35b97fff57f78ef4c5e8b0be52f1ad2f1cb9e28ab494092ba8d3a8fa0b",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-02-02T13:27:30Z",
    "title_canon_sha256": "bacd92cdcc671da1d3dc8ed735d9810e91a2e3a85cb1b709a6712347eb2e1be0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.0424",
    "kind": "arxiv",
    "version": 1
  }
}