pith. sign in
Pith Number

pith:DQJDUB3Q

pith:2013:DQJDUB3QM4MYIDADQLP4WI3REL
not attested not anchored not stored refs pending

Performance Analysis of Optimum Zero-Forcing Beamforming with Greedy User Selection

Murat Torlak, Serdar Ozyurt

arxiv:1307.5240 v1 · 2013-07-19 · cs.IT · math.IT

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{DQJDUB3QM4MYIDADQLP4WI3REL}

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 2026-05-18T03:18:05.359995Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

1c123a07706719840c0382dfcb237122f5f337988988d61f91b66478840804da

Aliases

arxiv: 1307.5240 · arxiv_version: 1307.5240v1 · doi: 10.48550/arxiv.1307.5240 · pith_short_12: DQJDUB3QM4MY · pith_short_16: DQJDUB3QM4MYIDAD · pith_short_8: DQJDUB3Q
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/DQJDUB3QM4MYIDADQLP4WI3REL \
  | 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: 1c123a07706719840c0382dfcb237122f5f337988988d61f91b66478840804da
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "93e8c9928f53f5eed3fc3e91b4645a3ec38e510d6787cbd6babc352da7b8ea0d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-07-19T14:44:46Z",
    "title_canon_sha256": "021615edb83fa3c3635ff46870959bffb48d912168e734c1928494d1ed452d7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5240",
    "kind": "arxiv",
    "version": 1
  }
}