Pith Number

pith:3CB4T3OY

pith:2013:3CB4T3OYK3DEWYGKRHEEUDF5HK

not attested not anchored not stored refs pending

Convolutional Codes: Techniques of Construction

Giuliano G. La Guardia

arxiv:1303.5003 v1 · 2013-03-20 · cs.IT · math.IT · quant-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3CB4T3OYK3DEWYGKRHEEUDF5HK}

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	2026-05-18T03:30:15.429120Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d883c9edd856c64b60ca89c84a0cbd3a8416fe3fb06461f0b9da51aa948ee541

Aliases

arxiv: 1303.5003 · arxiv_version: 1303.5003v1 · doi: 10.48550/arxiv.1303.5003 · pith_short_12: 3CB4T3OYK3DE · pith_short_16: 3CB4T3OYK3DEWYGK · pith_short_8: 3CB4T3OY

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/3CB4T3OYK3DEWYGKRHEEUDF5HK \
  | 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: d883c9edd856c64b60ca89c84a0cbd3a8416fe3fb06461f0b9da51aa948ee541

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f98e45c65fa66d016b83c9ad1ef64a6749445df17984da59500ac2afb96f1fc6",
    "cross_cats_sorted": [
      "math.IT",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-03-20T17:39:35Z",
    "title_canon_sha256": "667c649041776ee089a284744ce3e2022d540183c968fc4fa0219c5de0dcd505"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.5003",
    "kind": "arxiv",
    "version": 1
  }
}