Pith Number

pith:72STWZUB

pith:2010:72STWZUBBLYGERMY7ROPCHS2L3

not attested not anchored not stored refs pending

Weight Distributions of Multi-Edge type LDPC Codes

Charly Poulliat, David Declercq, Kenta Kasai, Kohichi Sakaniwa, Tomoharu AWANO

arxiv:1009.1137 v1 · 2010-09-06 · 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{72STWZUBBLYGERMY7ROPCHS2L3}

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	2026-05-18T02:05:36.074329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fea53b66810af0624598fc5cf11e5a5ee7c01c562a38a6b4b8b3fe9674fd2d87

Aliases

arxiv: 1009.1137 · arxiv_version: 1009.1137v1 · doi: 10.48550/arxiv.1009.1137 · pith_short_12: 72STWZUBBLYG · pith_short_16: 72STWZUBBLYGERMY · pith_short_8: 72STWZUB

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/72STWZUBBLYGERMY7ROPCHS2L3 \
  | 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: fea53b66810af0624598fc5cf11e5a5ee7c01c562a38a6b4b8b3fe9674fd2d87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "573a5926a6a03aa691c418f00eb8e06444fd6ed99b158017c6e4db80b3eb333d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-09-06T19:52:54Z",
    "title_canon_sha256": "56426d8b4b8ef8c0951da12f861cdbdb0dbaaaf4938637b48c1e4eee79cf9895"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.1137",
    "kind": "arxiv",
    "version": 1
  }
}