Pith Number

pith:T4NQET3T

pith:2017:T4NQET3TUYSWAAABJUD6R4EDLX

not attested not anchored not stored refs pending

Limited Feedback Channel Estimation in Massive MIMO with Non-uniform Directional Dictionaries

Aggelos Bletsas, Nicholas D. Sidiropoulos, Panos N. Alevizos, Xiao Fu, Yang Ye

arxiv:1712.10085 v2 · 2017-12-29 · 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{T4NQET3TUYSWAAABJUD6R4EDLX}

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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	2026-05-18T00:03:19.129272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f1b024f73a6256000014d07e8f0835dee9419e95b068526f4a86c88dfb2efe9

Aliases

arxiv: 1712.10085 · arxiv_version: 1712.10085v2 · doi: 10.48550/arxiv.1712.10085 · pith_short_12: T4NQET3TUYSW · pith_short_16: T4NQET3TUYSWAAAB · pith_short_8: T4NQET3T

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/T4NQET3TUYSWAAABJUD6R4EDLX \
  | 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: 9f1b024f73a6256000014d07e8f0835dee9419e95b068526f4a86c88dfb2efe9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffaacfb76a60305d50427c3c206fdd84c79449607250915ab9b215192a1250d4",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-12-29T00:56:36Z",
    "title_canon_sha256": "653a6777d99162716f62d1424a4e0f1668befe862b8b31bda5cb1553249f2961"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.10085",
    "kind": "arxiv",
    "version": 2
  }
}