Pith Number

pith:IWDWIW7B

pith:2018:IWDWIW7B7HPCZ6VHFGDSHML7RC

not attested not anchored not stored refs pending

Belief Propagation Decoding of Polar Codes on Permuted Factor Graphs

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

arxiv:1801.04299 v3 · 2018-01-12 · 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{IWDWIW7B7HPCZ6VHFGDSHML7RC}

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	2026-05-18T00:19:08.402166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4587645be1f9de2cfaa7298723b17f88a649cedf479f188ed1c50363ea2637ac

Aliases

arxiv: 1801.04299 · arxiv_version: 1801.04299v3 · doi: 10.48550/arxiv.1801.04299 · pith_short_12: IWDWIW7B7HPC · pith_short_16: IWDWIW7B7HPCZ6VH · pith_short_8: IWDWIW7B

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/IWDWIW7B7HPCZ6VHFGDSHML7RC \
  | 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: 4587645be1f9de2cfaa7298723b17f88a649cedf479f188ed1c50363ea2637ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fd57a6c1c800cd9792e74b079597258f8167cc5bb68a0b35a5a0357c08c768b",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-01-12T19:49:39Z",
    "title_canon_sha256": "91ba92e4060438cd96a4b6cc0277d5d03bf3c63b8232a5951d68145c18411d35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04299",
    "kind": "arxiv",
    "version": 3
  }
}