Pith Number

pith:SRQZIR7D

pith:2011:SRQZIR7D2SHLT52IROPYE2AKMF

not attested not anchored not stored refs pending

AWGN Channel Analysis of Terminated LDPC Convolutional Codes

Daniel J. Costello, David. G. M. Mitchell, jr, Michael Lentmaier

arxiv:1102.3936 v1 · 2011-02-18 · 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{SRQZIR7D2SHLT52IROPYE2AKMF}

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	2026-05-18T02:22:31.454090Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94619447e3d48eb9f7488b9f82680a615d9abdf8601085305cb08e0082125526

Aliases

arxiv: 1102.3936 · arxiv_version: 1102.3936v1 · doi: 10.48550/arxiv.1102.3936 · pith_short_12: SRQZIR7D2SHL · pith_short_16: SRQZIR7D2SHLT52I · pith_short_8: SRQZIR7D

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/SRQZIR7D2SHLT52IROPYE2AKMF \
  | 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: 94619447e3d48eb9f7488b9f82680a615d9abdf8601085305cb08e0082125526

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86e74458bb049c4de57b19903f1b5edddc7492590a545466fd03c1cc4539dd45",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-02-18T23:36:01Z",
    "title_canon_sha256": "b89be17d7862c9a53f978027520c7b886bb2aa3fb75b18409295485d2f0cd058"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.3936",
    "kind": "arxiv",
    "version": 1
  }
}