Pith Number

pith:LSWUHMKG

pith:2019:LSWUHMKGC4EIL5QJJNNKV5DFD3

not attested not anchored not stored refs pending

Estimating Doubly-Selective Channels for Hybrid mmWave Massive MIMO Systems: A Doubly-Sparse Approach

Liuqing Yang, Shijian Gao, Xiang Cheng

arxiv:1912.08380 v1 · 2019-12-18 · eess.SP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LSWUHMKGC4EIL5QJJNNKV5DFD3}

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	2026-07-05T00:27:02.222804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5cad43b146170885f6094b5aaaf4651ee31a2a0e9e9054732483a2d23f5ce347

Aliases

arxiv: 1912.08380 · arxiv_version: 1912.08380v1 · doi: 10.48550/arxiv.1912.08380 · pith_short_12: LSWUHMKGC4EI · pith_short_16: LSWUHMKGC4EIL5QJ · pith_short_8: LSWUHMKG

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/LSWUHMKGC4EIL5QJJNNKV5DFD3 \
  | 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: 5cad43b146170885f6094b5aaaf4651ee31a2a0e9e9054732483a2d23f5ce347

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4509e707174e83d28ba5257c9412e30fef7f1ba7d2c3aced137d4c774b3fb9e6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-12-18T05:04:43Z",
    "title_canon_sha256": "3a54d460c8812a57a4c2e94f4dedf7ad14300c70ca60bca1790200a3d272d642"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.08380",
    "kind": "arxiv",
    "version": 1
  }
}