Pith Number

pith:D4K7YBI3

pith:2010:D4K7YBI3JE4ULFXYOURHEC4SCY

not attested not anchored not stored refs pending

Capacity Achieving Low Density Parity Check Lattices

Amin Sakzad, Mohammad-Reza Sadeghi

arxiv:1004.1749 v4 · 2010-04-10 · 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{D4K7YBI3JE4ULFXYOURHEC4SCY}

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	2026-05-18T03:58:12.728782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f15fc051b49394596f87522720b92163718a820486674716b6f30fadab9a3c0

Aliases

arxiv: 1004.1749 · arxiv_version: 1004.1749v4 · doi: 10.48550/arxiv.1004.1749 · pith_short_12: D4K7YBI3JE4U · pith_short_16: D4K7YBI3JE4ULFXY · pith_short_8: D4K7YBI3

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/D4K7YBI3JE4ULFXYOURHEC4SCY \
  | 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: 1f15fc051b49394596f87522720b92163718a820486674716b6f30fadab9a3c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92ddb6c29c6e49f4a062888f8296b22ac141fb840e381ecdaaceec51aa4505f2",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-04-10T22:44:36Z",
    "title_canon_sha256": "39fe6906654ec8dac8e9296c7a43ef02244b17e179108917d24d4483db5851c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.1749",
    "kind": "arxiv",
    "version": 4
  }
}