Pith Number

pith:RYMB4UPQ

pith:2018:RYMB4UPQ2JSZBW63PDESD4IXBA

not attested not anchored not stored refs pending

Tensor-Based Parameter Estimation of Double Directional Massive MIMO Channel with Dual-Polarized Antennas

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

arxiv:1803.04261 v1 · 2018-03-04 · 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{RYMB4UPQ2JSZBW63PDESD4IXBA}

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	2026-05-18T00:21:32.137247Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e181e51f0d26590dbdb78c921f117083cfdbfa636c5f614420a59566834e715

Aliases

arxiv: 1803.04261 · arxiv_version: 1803.04261v1 · doi: 10.48550/arxiv.1803.04261 · pith_short_12: RYMB4UPQ2JSZ · pith_short_16: RYMB4UPQ2JSZBW63 · pith_short_8: RYMB4UPQ

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/RYMB4UPQ2JSZBW63PDESD4IXBA \
  | 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: 8e181e51f0d26590dbdb78c921f117083cfdbfa636c5f614420a59566834e715

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbcf3057527a3ab4fdec68c42c95d48f67788c772f20df12f525e7579f4ae24f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-03-04T04:05:35Z",
    "title_canon_sha256": "456bd35e6b109803a6ba1991daa35a90ab2e0d2d18125c36d6c6c5171b8b6a10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.04261",
    "kind": "arxiv",
    "version": 1
  }
}