Pith Number

pith:7W7ZFLTJ

pith:2021:7W7ZFLTJQCUSRSDVXNRX7URJED

not attested not anchored not stored refs pending

Enabling Cell-Free Massive MIMO Systems with Wireless Millimeter Wave Fronthaul

Ahmed Alkhateeb, Umut Demirhan

arxiv:2110.01798 v3 · 2021-10-05 · 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{7W7ZFLTJQCUSRSDVXNRX7URJED}

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	2026-07-05T04:46:32.954054Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdbf92ae6980a928c875bb637fd22920f51dbd76738d2bbf665ae2ddf49ecf5d

Aliases

arxiv: 2110.01798 · arxiv_version: 2110.01798v3 · doi: 10.48550/arxiv.2110.01798 · pith_short_12: 7W7ZFLTJQCUS · pith_short_16: 7W7ZFLTJQCUSRSDV · pith_short_8: 7W7ZFLTJ

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/7W7ZFLTJQCUSRSDVXNRX7URJED \
  | 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: fdbf92ae6980a928c875bb637fd22920f51dbd76738d2bbf665ae2ddf49ecf5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a97690ea926596424f63af407214ab508df117d229af2ed4b844538514d29c3a",
    "cross_cats_sorted": [
      "eess.SP",
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2021-10-05T03:20:09Z",
    "title_canon_sha256": "0512c16bea13500db0396c024acce21d44482734333fbb711d29f4cf4549b5ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.01798",
    "kind": "arxiv",
    "version": 3
  }
}