Pith Number

pith:ZFF43SN4

pith:2010:ZFF43SN4W4GOYDQYPYEUHESMAB

not attested not anchored not stored refs pending

Windowed Decoding of Protograph-based LDPC Convolutional Codes over Erasure Channels

Alessandro Vanelli-Coralli, Aravind Iyengar, Giovanni Corazza, Jack Wolf, Marco Papaleo, Paul Siegel

arxiv:1010.4548 v2 · 2010-10-21 · 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{ZFF43SN4W4GOYDQYPYEUHESMAB}

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	2026-05-18T00:58:43.879376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c94bcdc9bcb70cec0e187e0943924c007b2cedede5407f4ef5e0ff6396501ad2

Aliases

arxiv: 1010.4548 · arxiv_version: 1010.4548v2 · doi: 10.48550/arxiv.1010.4548 · pith_short_12: ZFF43SN4W4GO · pith_short_16: ZFF43SN4W4GOYDQY · pith_short_8: ZFF43SN4

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/ZFF43SN4W4GOYDQYPYEUHESMAB \
  | 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: c94bcdc9bcb70cec0e187e0943924c007b2cedede5407f4ef5e0ff6396501ad2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8bd7bc9dacc46fa3490a6e98d199dc9c8a59aff46570253edc68defdfc66b7a",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-10-21T18:19:17Z",
    "title_canon_sha256": "adba1164cb26bd14c45f0789e4351c05b6062c143bedd5f4821b8b92aa1b8249"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.4548",
    "kind": "arxiv",
    "version": 2
  }
}