Pith Number

pith:6QWOH7L5

pith:2011:6QWOH7L53TNL3DSPCCDH7POQAZ

not attested not anchored not stored refs pending

LDPC Code Design for the BPSK-constrained Gaussian Wiretap Channel

Chan Wong Wong, John M. Shea, Tan F. Wong

arxiv:1103.3915 v1 · 2011-03-21 · 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{6QWOH7L53TNL3DSPCCDH7POQAZ}

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	2026-05-18T00:58:43.564329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f42ce3fd7ddcdabd8e4f10867fbdd00661b584be17da485fc8d6329d51014ff5

Aliases

arxiv: 1103.3915 · arxiv_version: 1103.3915v1 · doi: 10.48550/arxiv.1103.3915 · pith_short_12: 6QWOH7L53TNL · pith_short_16: 6QWOH7L53TNL3DSP · pith_short_8: 6QWOH7L5

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/6QWOH7L53TNL3DSPCCDH7POQAZ \
  | 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: f42ce3fd7ddcdabd8e4f10867fbdd00661b584be17da485fc8d6329d51014ff5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29a20a51bdc1ade8567ad91d3abad49396c409893fcf396d5cbd096db31584ea",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-03-21T03:58:34Z",
    "title_canon_sha256": "defa6fa59433d1b410dd4c98cdb798a961e6878843ef5b26ce8b3589bc1fefbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.3915",
    "kind": "arxiv",
    "version": 1
  }
}