pith. sign in
Pith Number

pith:SNVHXPSV

pith:2013:SNVHXPSV3AKUWZX7DULI46FRXQ
not attested not anchored not stored refs pending

Distributed Space-Time Coding Based on Adjustable Code Matrices for Cooperative MIMO Relaying Systems

A. Schmeink, R. C. de Lamare, T. Peng

arxiv:1304.1926 v1 · 2013-04-06 · cs.IT · math.IT

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{SNVHXPSV3AKUWZX7DULI46FRXQ}

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 2026-05-18T00:58:17.436788Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

936a7bbe55d8154b66ff1d168e78b1bc09ef701a872224d32e488028d425089a

Aliases

arxiv: 1304.1926 · arxiv_version: 1304.1926v1 · doi: 10.48550/arxiv.1304.1926 · pith_short_12: SNVHXPSV3AKU · pith_short_16: SNVHXPSV3AKUWZX7 · pith_short_8: SNVHXPSV
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/SNVHXPSV3AKUWZX7DULI46FRXQ \
  | 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: 936a7bbe55d8154b66ff1d168e78b1bc09ef701a872224d32e488028d425089a
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "fa0e75c1fbdb62b0ced2d476f28e41b74fc95e93fb43e70b37c440b0e7078c1d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-04-06T19:21:48Z",
    "title_canon_sha256": "c31a5ccee2ced9c65f0aa748711b7a4ace9c1723377cc3ae74c68eaef5852b9f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1926",
    "kind": "arxiv",
    "version": 1
  }
}