Pith Number

pith:CRRRRUV4

pith:2019:CRRRRUV4RU7YRRX3KLS7IG2BXT

not attested not anchored not stored refs pending

On the Energy Efficiency of Limited-Backhaul Cell-Free Massive MIMO

Alister G. Burr, Erik G. Larsson, Hien Quoc Ngo, Kanapathippillai Cumanan, Manijeh Bashar, Pei Xiao

arxiv:1906.11639 v2 · 2019-06-26 · 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{CRRRRUV4RU7YRRX3KLS7IG2BXT}

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	2026-05-17T23:41:17.058746Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

146318d2bc8d3f88c6fb52e5f41b41bcddcd4edbd6d4801d66197f1d66edde77

Aliases

arxiv: 1906.11639 · arxiv_version: 1906.11639v2 · doi: 10.48550/arxiv.1906.11639 · pith_short_12: CRRRRUV4RU7Y · pith_short_16: CRRRRUV4RU7YRRX3 · pith_short_8: CRRRRUV4

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/CRRRRUV4RU7YRRX3KLS7IG2BXT \
  | 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: 146318d2bc8d3f88c6fb52e5f41b41bcddcd4edbd6d4801d66197f1d66edde77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e4a0b5a3491ce0aecef423466feb5d4bfe2af94692ff8150d9c2278cbb5b035",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-06-26T14:34:06Z",
    "title_canon_sha256": "1bfd12ce422e4428f5ca9dc0722fd3a425db7c51572e2ea2d8364a958ae962c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.11639",
    "kind": "arxiv",
    "version": 2
  }
}