Pith Number

pith:Q3QACBP4

pith:2019:Q3QACBP4S6G45CVFULYDCO3POD

not attested not anchored not stored refs pending

Massive MIMO Multicast Beamforming Via Accelerated Random Coordinate Descent

Lei Cheng, Minghua Xia, Shuai Wang, Yik-Chung Wu

arxiv:1902.02447 v1 · 2019-02-07 · 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{Q3QACBP4S6G45CVFULYDCO3POD}

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	2026-05-17T23:54:33.282058Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86e00105fc978dce8aa5a2f0313b6f70c0c00852426f7917d90409eb292dda02

Aliases

arxiv: 1902.02447 · arxiv_version: 1902.02447v1 · doi: 10.48550/arxiv.1902.02447 · pith_short_12: Q3QACBP4S6G4 · pith_short_16: Q3QACBP4S6G45CVF · pith_short_8: Q3QACBP4

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/Q3QACBP4S6G45CVFULYDCO3POD \
  | 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: 86e00105fc978dce8aa5a2f0313b6f70c0c00852426f7917d90409eb292dda02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27ee01d223e5bd9c28b8d4d5667a5d2ec6e9b85655d3e866e4f0e64f25f0ac8b",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-02-07T02:09:40Z",
    "title_canon_sha256": "48c6a45750bf6afda4fcff723da13d10169e49506f7831dd8573a5c0f245f171"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02447",
    "kind": "arxiv",
    "version": 1
  }
}