Pith Number

pith:T2YMYIDG

pith:2020:T2YMYIDGOJ3S4DODNHCCMBMOFT

not attested not anchored not stored refs pending

Beamspace Precoding and Beam Selection for Wideband Millimeter-Wave MIMO Relying on Lens Antenna Arrays

Chengwen Xing, Lajos Hanzo, Wenqian Shen, Xiangyuan Bu, Xinyu Gao

arxiv:2004.08071 v1 · 2020-04-17 · cs.IT · eess.SP · 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{T2YMYIDGOJ3S4DODNHCCMBMOFT}

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	2026-07-05T00:55:49.737070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9eb0cc206672772e0dc369c426058e2cd8c4d2c97cc551d06b883b1aaa072ebb

Aliases

arxiv: 2004.08071 · arxiv_version: 2004.08071v1 · doi: 10.48550/arxiv.2004.08071 · pith_short_12: T2YMYIDGOJ3S · pith_short_16: T2YMYIDGOJ3S4DOD · pith_short_8: T2YMYIDG

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/T2YMYIDGOJ3S4DODNHCCMBMOFT \
  | 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: 9eb0cc206672772e0dc369c426058e2cd8c4d2c97cc551d06b883b1aaa072ebb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d10ceed2ac2b829dc30de065174ede6d040f3d8a7ea20cfc3140d63760f44c4b",
    "cross_cats_sorted": [
      "eess.SP",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2020-04-17T05:46:46Z",
    "title_canon_sha256": "ef7601e31214c7057f50cd5792e04e6845f3e0b7e7bf2f4fa36305fcfc9818a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.08071",
    "kind": "arxiv",
    "version": 1
  }
}