Pith Number

pith:7NQEYFQW

pith:2017:7NQEYFQWCUXSMRIW56B5U4IGSO

not attested not anchored not stored refs pending

Super-resolution channel estimation for mmWave massive MIMO with hybrid precoding

Chen Hu, Jun Fang, Linglong Dai, Talha Mir, Zhen Gao

arxiv:1705.05649 v2 · 2017-05-16 · 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{7NQEYFQWCUXSMRIW56B5U4IGSO}

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	2026-05-18T00:11:18.911416Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb604c1616152f264516ef83da710693b0359905cf341c636ea177827347c978

Aliases

arxiv: 1705.05649 · arxiv_version: 1705.05649v2 · doi: 10.48550/arxiv.1705.05649 · pith_short_12: 7NQEYFQWCUXS · pith_short_16: 7NQEYFQWCUXSMRIW · pith_short_8: 7NQEYFQW

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/7NQEYFQWCUXSMRIW56B5U4IGSO \
  | 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: fb604c1616152f264516ef83da710693b0359905cf341c636ea177827347c978

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74c843dc4549a8ba1c73b6d4c3f81ce32db24879499c5bf054a1976b1f2c5f44",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-05-16T11:28:30Z",
    "title_canon_sha256": "dea2216e483e6fea04d16d63cdf3c5499e11404540c8f52c810701fadee12709"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.05649",
    "kind": "arxiv",
    "version": 2
  }
}