Pith Number

pith:QSH4ISXG

pith:2010:QSH4ISXGVSEQVTNGQDZPGGNWPN

not attested not anchored not stored refs pending

Asymptotically Regular LDPC Codes with Linear Distance Growth and Thresholds Close to Capacity

Daniel J. Costello, David G. M. Mitchell, Gerhard P. Fettweis, Jr., Michael Lentmaier

arxiv:1005.1062 v1 · 2010-05-06 · 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{QSH4ISXGVSEQVTNGQDZPGGNWPN}

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	2026-05-18T02:24:08.809657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

848fc44ae6ac890acda680f2f319b67b71aa5ee9e1713c71f5bc83bbc13e249c

Aliases

arxiv: 1005.1062 · arxiv_version: 1005.1062v1 · doi: 10.48550/arxiv.1005.1062 · pith_short_12: QSH4ISXGVSEQ · pith_short_16: QSH4ISXGVSEQVTNG · pith_short_8: QSH4ISXG

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/QSH4ISXGVSEQVTNGQDZPGGNWPN \
  | 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: 848fc44ae6ac890acda680f2f319b67b71aa5ee9e1713c71f5bc83bbc13e249c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8bbc0f5887179f692e5d58d45c84794c1033653e9258e557d8b7d7c9099c625",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-05-06T19:44:26Z",
    "title_canon_sha256": "22e354bce0d61740afe5f4dd855da77d795eb156acc528acba55c84c9ef2af7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.1062",
    "kind": "arxiv",
    "version": 1
  }
}