Pith Number

pith:AQDMIY7Y

pith:2012:AQDMIY7YOINW7IKT3GBMI4UCOR

not attested not anchored not stored refs pending

A New Family of Low-Complexity STBCs for Four Transmit Antennas

Amr Ismail, Hikmet Sari, Jocelyn Fiorina

arxiv:1204.6564 v3 · 2012-04-30 · 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{AQDMIY7YOINW7IKT3GBMI4UCOR}

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	2026-05-18T03:37:28.986332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0406c463f8721b6fa153d982c47282744fa330ede4608e9b2adbaea8e251eef9

Aliases

arxiv: 1204.6564 · arxiv_version: 1204.6564v3 · doi: 10.48550/arxiv.1204.6564 · pith_short_12: AQDMIY7YOINW · pith_short_16: AQDMIY7YOINW7IKT · pith_short_8: AQDMIY7Y

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/AQDMIY7YOINW7IKT3GBMI4UCOR \
  | 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: 0406c463f8721b6fa153d982c47282744fa330ede4608e9b2adbaea8e251eef9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "745c36ac055b9099903d49e8b1fbf63a32b58c4ee4f6d4e2a02dbe2e9876a801",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-04-30T07:20:21Z",
    "title_canon_sha256": "8c857c8cf29e8966b87b608e27b42ddeea0d6e98012cdb6bac8007bd3156f107"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.6564",
    "kind": "arxiv",
    "version": 3
  }
}