Pith Number

pith:XUW55RVV

pith:2018:XUW55RVVMHDF7YSI3IDCJCM2AN

not attested not anchored not stored refs pending

Joint Channel Estimation and User Grouping for Massive MIMO Systems

An Liu, Jisheng Dai, Vincent K. N. Lau

arxiv:1804.09295 v3 · 2018-04-25 · eess.SP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XUW55RVVMHDF7YSI3IDCJCM2AN}

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	2026-05-17T23:55:20.918867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd2ddec6b561c65fe248da0624899a03554bf295139db7ae9973190fc833c476

Aliases

arxiv: 1804.09295 · arxiv_version: 1804.09295v3 · doi: 10.48550/arxiv.1804.09295 · pith_short_12: XUW55RVVMHDF · pith_short_16: XUW55RVVMHDF7YSI · pith_short_8: XUW55RVV

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/XUW55RVVMHDF7YSI3IDCJCM2AN \
  | 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: bd2ddec6b561c65fe248da0624899a03554bf295139db7ae9973190fc833c476

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69c3dbe274ea707f21984a5ad29bba589c853c558ca963bbc2611fc0fb509f37",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-04-25T00:01:09Z",
    "title_canon_sha256": "031d9297eadbd398cdb178f371b99f0a89c761856fa4dda463ad82a7995a39a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.09295",
    "kind": "arxiv",
    "version": 3
  }
}