Pith Number

pith:L63WLOFK

pith:2019:L63WLOFKAWIKCZH3JP77UCEYX7

not attested not anchored not stored refs pending

Genetic Algorithm-based Polar Code Construction for the AWGN Channel

Ahmed Elkelesh, Moustafa Ebada, Sebastian Cammerer, Stephan ten Brink

arxiv:1901.06444 v1 · 2019-01-19 · cs.IT · cs.AI · 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{L63WLOFKAWIKCZH3JP77UCEYX7}

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	2026-05-17T23:55:50.288426Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fb765b8aa0590a164fb4bfffa0898bfccf38727e05d864dc7a6f66d6ea88213

Aliases

arxiv: 1901.06444 · arxiv_version: 1901.06444v1 · doi: 10.48550/arxiv.1901.06444 · pith_short_12: L63WLOFKAWIK · pith_short_16: L63WLOFKAWIKCZH3 · pith_short_8: L63WLOFK

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/L63WLOFKAWIKCZH3JP77UCEYX7 \
  | 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: 5fb765b8aa0590a164fb4bfffa0898bfccf38727e05d864dc7a6f66d6ea88213

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2495f0bc98624fae07428a187245b2a499c7734eda084d5f27b47dec723a08ea",
    "cross_cats_sorted": [
      "cs.AI",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-01-19T00:06:35Z",
    "title_canon_sha256": "884dd7596cde651f4c93fef356664865d72388301a7202ff824049f00eac73b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06444",
    "kind": "arxiv",
    "version": 1
  }
}