Pith Number

pith:72TEFO4M

pith:2025:72TEFO4MHEOYBLXQKVBHOCRUNP

not attested not anchored not stored refs pending

Coalition Formation for Heterogeneous Federated Learning Enabled Channel Estimation in RIS-assisted Cell-free MIMO

Alexandros-Apostolos A. Boulogeorgos, Fuhui Zhou, Haoxuan Liu, Nan Qi, Qihui Wu, Shi Jin, Theodoros A. Tsiftsis

arxiv:2502.05538 v1 · 2025-02-08 · 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{72TEFO4MHEOYBLXQKVBHOCRUNP}

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	2026-07-05T10:11:39.624581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fea642bb8c391d80aef05542770a346bde100d3aa01be79f77975535a145eb38

Aliases

arxiv: 2502.05538 · arxiv_version: 2502.05538v1 · doi: 10.48550/arxiv.2502.05538 · pith_short_12: 72TEFO4MHEOY · pith_short_16: 72TEFO4MHEOYBLXQ · pith_short_8: 72TEFO4M

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/72TEFO4MHEOYBLXQKVBHOCRUNP \
  | 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: fea642bb8c391d80aef05542770a346bde100d3aa01be79f77975535a145eb38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4eb76e077c34f12399ab4834d3a682283d70e39e62b79925334948fabb6f44a",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2025-02-08T12:00:47Z",
    "title_canon_sha256": "fdc847c4be27eb76ab5dc7cbc83bcaf26ed3ce627a0112e60f6d1099f1ecdc01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.05538",
    "kind": "arxiv",
    "version": 1
  }
}