Pith Number

pith:FW2DNGR2

pith:2019:FW2DNGR25GFHGFAARUZDGGM4GG

not attested not anchored not stored refs pending

Beam Training and Allocation for Multiuser Millimeter Wave Massive MIMO Systems

Chenhao Qi, Geoffrey Ye Li, Xuyao Sun

arxiv:1901.01421 v1 · 2019-01-05 · eess.SP · 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{FW2DNGR25GFHGFAARUZDGGM4GG}

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	2026-05-17T23:56:52.063118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2db4369a3ae98a7314008d3233199c31a7ccac5984eb7fb43725e7ccca710bb4

Aliases

arxiv: 1901.01421 · arxiv_version: 1901.01421v1 · doi: 10.48550/arxiv.1901.01421 · pith_short_12: FW2DNGR25GFH · pith_short_16: FW2DNGR25GFHGFAA · pith_short_8: FW2DNGR2

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/FW2DNGR25GFHGFAARUZDGGM4GG \
  | 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: 2db4369a3ae98a7314008d3233199c31a7ccac5984eb7fb43725e7ccca710bb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c91e1434c619c660478836d82474fc176c288771e260a27cd2a85139d2713a3",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-01-05T14:25:38Z",
    "title_canon_sha256": "65bde90ecb144f619859c86ead3505c0e5de8314c75dd02df8a72c778cbf15c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.01421",
    "kind": "arxiv",
    "version": 1
  }
}