Pith Number

pith:NENXCTOU

pith:2011:NENXCTOUMP6EXEPGCRB6UAWMS2

not attested not anchored not stored refs pending

Closed Form Secrecy Capacity of MIMO Wiretap Channels with Two Transmit Antennas

Athina Petropulu, Jiangyuan Li

arxiv:1107.5541 v1 · 2011-07-27 · 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{NENXCTOUMP6EXEPGCRB6UAWMS2}

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	2026-05-18T04:16:42.921612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

691b714dd463fc4b91e61443ea02cc96a5d67abde86b30ddd70fc83ec9c9325b

Aliases

arxiv: 1107.5541 · arxiv_version: 1107.5541v1 · doi: 10.48550/arxiv.1107.5541 · pith_short_12: NENXCTOUMP6E · pith_short_16: NENXCTOUMP6EXEPG · pith_short_8: NENXCTOU

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/NENXCTOUMP6EXEPGCRB6UAWMS2 \
  | 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: 691b714dd463fc4b91e61443ea02cc96a5d67abde86b30ddd70fc83ec9c9325b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e79c55166a2c85484125f6bd680146aa7d49d7bfb4363b4658da7aaf833b0f46",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-07-27T17:09:39Z",
    "title_canon_sha256": "216e323977363138db0319de34a2742526fcc28e90d8ad15aede8abf9e533b69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.5541",
    "kind": "arxiv",
    "version": 1
  }
}