Pith Number

pith:QU2PVSII

pith:2013:QU2PVSIIFVWV2QRK27R7QXMKP4

not attested not anchored not stored refs pending

Low-Density Parity-Check Codes From Transversal Designs With Improved Stopping Set Distributions

Alexander Gruner, Michael Huber

arxiv:1306.5111 v1 · 2013-06-21 · cs.IT · cs.DM · math.CO · 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{QU2PVSIIFVWV2QRK27R7QXMKP4}

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	2026-05-18T00:12:01.335088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8534fac9082d6d5d422ad7e3f85d8a7f3942c3d30b77f74bc5e40a8bd60b5ef9

Aliases

arxiv: 1306.5111 · arxiv_version: 1306.5111v1 · doi: 10.48550/arxiv.1306.5111 · pith_short_12: QU2PVSIIFVWV · pith_short_16: QU2PVSIIFVWV2QRK · pith_short_8: QU2PVSII

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/QU2PVSIIFVWV2QRK27R7QXMKP4 \
  | 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: 8534fac9082d6d5d422ad7e3f85d8a7f3942c3d30b77f74bc5e40a8bd60b5ef9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e59618d655ea5f217d7fd03a96dd74d2dd57a3d679686567bc9550159605dc26",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-06-21T12:01:11Z",
    "title_canon_sha256": "b99bb44354e3db51d7dc660b239657f19a250ad82d93e77a14b73ea4e8b0233c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.5111",
    "kind": "arxiv",
    "version": 1
  }
}