Pith Number

pith:ACPYLV6I

pith:2012:ACPYLV6IHLC6LSYJVDOOTC35E7

not attested not anchored not stored refs pending

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

Amr Ismail, Hikmet Sari, Jocelyn Fiorina

arxiv:1204.4000 v1 · 2012-04-18 · 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{ACPYLV6IHLC6LSYJVDOOTC35E7}

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	2026-05-18T00:58:18.293596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

009f85d7c83ac5e5cb09a8dce98b7d27cf24e13d34dbcccaaee4c45d7d7d0b5d

Aliases

arxiv: 1204.4000 · arxiv_version: 1204.4000v1 · doi: 10.48550/arxiv.1204.4000 · pith_short_12: ACPYLV6IHLC6 · pith_short_16: ACPYLV6IHLC6LSYJ · pith_short_8: ACPYLV6I

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/ACPYLV6IHLC6LSYJVDOOTC35E7 \
  | 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: 009f85d7c83ac5e5cb09a8dce98b7d27cf24e13d34dbcccaaee4c45d7d7d0b5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02b73d8f62b54679fb1d44a6ac36c935ab937281f2bc5ebae381589b6b837939",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-04-18T07:52:48Z",
    "title_canon_sha256": "eeed09998232302a99f50074db4f975cd1d4e196da9610116144d35ed2f4cfee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4000",
    "kind": "arxiv",
    "version": 1
  }
}