Pith Number

pith:VC5Y5VT5

pith:2013:VC5Y5VT5WPL53KA5ZK76I3WYS2

not attested not anchored not stored refs pending

Rate-Compatible Protograph-based LDPC Codes for Inter-Symbol Interference Channels

Aria Nosratinia, Dariush Divsalar, Thuy Van Nguyen

arxiv:1306.6056 v1 · 2013-06-25 · 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{VC5Y5VT5WPL53KA5ZK76I3WYS2}

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	2026-05-18T03:19:57.898645Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8bb8ed67db3d7dda81dcabfe46ed8969218da060e31513a14897b452e65d69a

Aliases

arxiv: 1306.6056 · arxiv_version: 1306.6056v1 · doi: 10.48550/arxiv.1306.6056 · pith_short_12: VC5Y5VT5WPL5 · pith_short_16: VC5Y5VT5WPL53KA5 · pith_short_8: VC5Y5VT5

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/VC5Y5VT5WPL53KA5ZK76I3WYS2 \
  | 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: a8bb8ed67db3d7dda81dcabfe46ed8969218da060e31513a14897b452e65d69a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ff7f6083e1821dcd5524473104bc150aba7020b33e89aefcb4bd87ed1369134",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-06-25T18:36:32Z",
    "title_canon_sha256": "6debace6fb75a429b7d898cd6bb1a9618cc3e7ed9d7d9667044b8d5a876c87f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.6056",
    "kind": "arxiv",
    "version": 1
  }
}