Pith Number

pith:GJRQFDN2

pith:2015:GJRQFDN2T343A7RRG6BRPKE5TJ

not attested not anchored not stored refs pending

Low Complexity Belief Propagation Polar Code Decoders

Chi-Ying Tsui, Ji Chen, Syed Mohsin Abbas, YouZhe Fan

arxiv:1505.04979 v2 · 2015-05-19 · 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{GJRQFDN2T343A7RRG6BRPKE5TJ}

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	2026-05-18T01:34:49.710429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3263028dba9ef9b07e31378317a89d9a69c58c6aacea6360a2a11bf842e0ed8d

Aliases

arxiv: 1505.04979 · arxiv_version: 1505.04979v2 · doi: 10.48550/arxiv.1505.04979 · pith_short_12: GJRQFDN2T343 · pith_short_16: GJRQFDN2T343A7RR · pith_short_8: GJRQFDN2

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/GJRQFDN2T343A7RRG6BRPKE5TJ \
  | 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: 3263028dba9ef9b07e31378317a89d9a69c58c6aacea6360a2a11bf842e0ed8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "276b943c84353410d2323acf333db328afcfc83c9b8a74c808c5fbf8041f21dc",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-05-19T12:58:58Z",
    "title_canon_sha256": "7a5eb2687bf0f630c3c9b5972932acb7c21f482b791e9feced69df49f6f49b12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04979",
    "kind": "arxiv",
    "version": 2
  }
}