Pith Number

pith:VBJ7LUK2

pith:2017:VBJ7LUK2IQ34FOUB3EDOR24DFQ

not attested not anchored not stored refs pending

Spectral and Energy Efficiency of Cell-Free Massive MIMO Systems with Hardware Impairments

Emil Bj\"ornson, Jiayi Zhang, Xu Li, Yinghua Wei, Yu Han

arxiv:1709.02950 v1 · 2017-09-09 · 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{VBJ7LUK2IQ34FOUB3EDOR24DFQ}

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	2026-05-18T00:35:39.980969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a853f5d15a4437c2ba81d906e8eb832c016a3b6add81708de115e231995c3ce9

Aliases

arxiv: 1709.02950 · arxiv_version: 1709.02950v1 · doi: 10.48550/arxiv.1709.02950 · pith_short_12: VBJ7LUK2IQ34 · pith_short_16: VBJ7LUK2IQ34FOUB · pith_short_8: VBJ7LUK2

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/VBJ7LUK2IQ34FOUB3EDOR24DFQ \
  | 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: a853f5d15a4437c2ba81d906e8eb832c016a3b6add81708de115e231995c3ce9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3fefb6152aecdd2bca6053e4df58f262df348cd136a6ff5fd564ebf08c7e8e2",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-09-09T13:12:32Z",
    "title_canon_sha256": "0b9d7ff27c4c2235e687c750984535dab3688c63d7743bcede96bc2447205c1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02950",
    "kind": "arxiv",
    "version": 1
  }
}