Pith Number

pith:VP5XMB64

pith:2017:VP5XMB64ZJH7TVD2SENBH53CSN

not attested not anchored not stored refs pending

Massive MIMO Beam-forming for High Speed Train Communication: Directivity vs Beamwidth

Jiaxun Lu, Pingyi Fan, Xuhong Chen

arxiv:1702.02121 v1 · 2017-02-07 · 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{VP5XMB64ZJH7TVD2SENBH53CSN}

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	2026-05-18T00:51:10.251536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abfb7607dcca4ff9d47a911a13f762935b154d166162aa2dc47230183b84707d

Aliases

arxiv: 1702.02121 · arxiv_version: 1702.02121v1 · doi: 10.48550/arxiv.1702.02121 · pith_short_12: VP5XMB64ZJH7 · pith_short_16: VP5XMB64ZJH7TVD2 · pith_short_8: VP5XMB64

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/VP5XMB64ZJH7TVD2SENBH53CSN \
  | 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: abfb7607dcca4ff9d47a911a13f762935b154d166162aa2dc47230183b84707d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57ba6fbdccf7b96f3eaa422017df4df5645294c824272c83a827f7a27da5346b",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-02-07T18:10:09Z",
    "title_canon_sha256": "77f76b17f7d2de588c91634fbe7a3571628b073f26efc08c5fd023d88a9f8db9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.02121",
    "kind": "arxiv",
    "version": 1
  }
}