Pith Number

pith:PGTH4TWT

pith:2010:PGTH4TWTFEMCE25GMQGOZAFTLS

not attested not anchored not stored refs pending

An Iterative Joint Linear-Programming Decoding of LDPC Codes and Finite-State Channels

Byung-Hak Kim, Henry D. Pfister

arxiv:1009.4352 v2 · 2010-09-22 · 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{PGTH4TWTFEMCE25GMQGOZAFTLS}

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	2026-05-18T00:58:19.360858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79a67e4ed32918226ba6640cec80b35ca32e62686da01ba30fb482edad974d89

Aliases

arxiv: 1009.4352 · arxiv_version: 1009.4352v2 · doi: 10.48550/arxiv.1009.4352 · pith_short_12: PGTH4TWTFEMC · pith_short_16: PGTH4TWTFEMCE25G · pith_short_8: PGTH4TWT

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/PGTH4TWTFEMCE25GMQGOZAFTLS \
  | 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: 79a67e4ed32918226ba6640cec80b35ca32e62686da01ba30fb482edad974d89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3d5e0bb2b54ea1effbcb212504eef2a9011633df6cb0964a56766a0b74b127f",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-09-22T13:13:00Z",
    "title_canon_sha256": "192632fca30ae159268ea39158e79eb2653dec3a056acc24d099bb89f6994af5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4352",
    "kind": "arxiv",
    "version": 2
  }
}