Pith Number

pith:QEVRXSU7

pith:2012:QEVRXSU7F7RKITQ3T3QT7MQFKU

not attested not anchored not stored refs pending

An Enhanced DMT-optimality Criterion for STBC-schemes for Asymmetric MIMO Systems

B. Sundar Rajan, K. Pavan Srinath

arxiv:1201.1997 v3 · 2012-01-10 · 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{QEVRXSU7F7RKITQ3T3QT7MQFKU}

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	2026-05-18T03:27:01.793629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

812b1bca9f2fe2a44e1b9ee13fb205552b2a293d7d3924243b78a947fb7f72cd

Aliases

arxiv: 1201.1997 · arxiv_version: 1201.1997v3 · doi: 10.48550/arxiv.1201.1997 · pith_short_12: QEVRXSU7F7RK · pith_short_16: QEVRXSU7F7RKITQ3 · pith_short_8: QEVRXSU7

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/QEVRXSU7F7RKITQ3T3QT7MQFKU \
  | 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: 812b1bca9f2fe2a44e1b9ee13fb205552b2a293d7d3924243b78a947fb7f72cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "236a96b4c2a944ac0124d309788d3c84b563948ab7f28a6b381cb7f813acec85",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-01-10T09:48:37Z",
    "title_canon_sha256": "d02b1b025e6d254eb9044583e42c292fbe930fba027f85129911ee24a4e4bbfd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.1997",
    "kind": "arxiv",
    "version": 3
  }
}