Pith Number

pith:SJZ5EHB7

pith:2018:SJZ5EHB74NQEIGC4OKRRMWRJ52

not attested not anchored not stored refs pending

Tensor-Based Channel Estimation for Dual-Polarized Massive MIMO Systems

Cheng Qian, Nicholas D. Sidiropoulos, Xiao Fu, Ye Yang

arxiv:1805.02223 v2 · 2018-05-06 · 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{SJZ5EHB74NQEIGC4OKRRMWRJ52}

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	2026-05-18T00:02:17.931595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9273d21c3fe36044185c72a3165a29eeb1810666958a7ed6c034f9b8668a7981

Aliases

arxiv: 1805.02223 · arxiv_version: 1805.02223v2 · doi: 10.48550/arxiv.1805.02223 · pith_short_12: SJZ5EHB74NQE · pith_short_16: SJZ5EHB74NQEIGC4 · pith_short_8: SJZ5EHB7

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/SJZ5EHB74NQEIGC4OKRRMWRJ52 \
  | 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: 9273d21c3fe36044185c72a3165a29eeb1810666958a7ed6c034f9b8668a7981

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7829d246c24358a5c65cc9389bde3d7cbe659db18446f910ca0721e532c5d13",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-05-06T14:55:25Z",
    "title_canon_sha256": "c3c6b11daf4367427a54106b4c360ae197a7405fd2dc1c2760e5c77f37576db3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.02223",
    "kind": "arxiv",
    "version": 2
  }
}