Pith Number

pith:7G3565NO

pith:2020:7G3565NO7NLSQB2CYAIWYL6XV7

not attested not anchored not stored refs pending

Pilot Assignment in Cell-Free Massive MIMO based on the Hungarian Algorithm

Carmen D'Andrea, Maria Fresia, Shulan Feng, Stefano Buzzi, Yong-Ping Zhang

arxiv:2004.06940 v2 · 2020-04-15 · 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{7G3565NO7NLSQB2CYAIWYL6XV7}

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	2026-07-05T01:30:40.668573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9b7df75aefb57280742c0116c2fd7afd58a950a4b556a9b700ddeb6fcd3d96a

Aliases

arxiv: 2004.06940 · arxiv_version: 2004.06940v2 · doi: 10.48550/arxiv.2004.06940 · pith_short_12: 7G3565NO7NLS · pith_short_16: 7G3565NO7NLSQB2C · pith_short_8: 7G3565NO

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/7G3565NO7NLSQB2CYAIWYL6XV7 \
  | 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: f9b7df75aefb57280742c0116c2fd7afd58a950a4b556a9b700ddeb6fcd3d96a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10ee9ad19bb43ce7a1ea60494cbc062e6c4b8dccf9e0b2eeda657504ec334b3b",
    "cross_cats_sorted": [
      "eess.SP",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2020-04-15T08:47:27Z",
    "title_canon_sha256": "4e239dbc7e3259a0ab201742486b7722335b1614530aec703bf60a7ceca05cde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.06940",
    "kind": "arxiv",
    "version": 2
  }
}