Pith Number

pith:E4UNJXMJ

pith:2021:E4UNJXMJJSF2KHNWTHF2QYQTQO

not attested not anchored not stored refs pending

Joint Channel Estimation and Data Detection in Cell-Free Massive MU-MIMO Systems

Christoph Studer, Chuan Zhang, Haochuan Song, Olav Tirkkonen, Tom Goldstein, Xiaohu You

arxiv:2110.15928 v1 · 2021-10-29 · 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{E4UNJXMJJSF2KHNWTHF2QYQTQO}

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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	2026-07-05T03:27:15.803230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2728d4dd894c8ba51db699cba8621383a7df5da3a48b4f7d08a4aed3b0050369

Aliases

arxiv: 2110.15928 · arxiv_version: 2110.15928v1 · doi: 10.48550/arxiv.2110.15928 · pith_short_12: E4UNJXMJJSF2 · pith_short_16: E4UNJXMJJSF2KHNW · pith_short_8: E4UNJXMJ

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/E4UNJXMJJSF2KHNWTHF2QYQTQO \
  | 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: 2728d4dd894c8ba51db699cba8621383a7df5da3a48b4f7d08a4aed3b0050369

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab2ce8efad5b6f6bd2c1330e0f674a04cc5ce2f55106a721c0555183b866991a",
    "cross_cats_sorted": [
      "eess.SP",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2021-10-29T17:23:01Z",
    "title_canon_sha256": "375fb8b9a5803252ba5a29b98043f6dd918942e179ce37ec4ee93d1545edea44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.15928",
    "kind": "arxiv",
    "version": 1
  }
}