Pith Number

pith:V3HR4DUX

pith:2019:V3HR4DUXSSFBZ5V3Z3FA3JZXNS

not attested not anchored not stored refs pending

FFDNet-Based Channel Estimation for Massive MIMO Visible Light Communication Systems

Fuhui Zhou, Kai-Kit Wong, XiaoDong Liu, Yuhao Wang, Zhipeng Gao

arxiv:1911.07404 v1 · 2019-11-18 · eess.SP · 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{V3HR4DUXSSFBZ5V3Z3FA3JZXNS}

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	2026-07-05T00:19:46.569068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aecf1e0e97948a1cf6bbceca0da7376ca300f7ea61b14d5a11bf2509fe9c36e8

Aliases

arxiv: 1911.07404 · arxiv_version: 1911.07404v1 · doi: 10.48550/arxiv.1911.07404 · pith_short_12: V3HR4DUXSSFB · pith_short_16: V3HR4DUXSSFBZ5V3 · pith_short_8: V3HR4DUX

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/V3HR4DUXSSFBZ5V3Z3FA3JZXNS \
  | 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: aecf1e0e97948a1cf6bbceca0da7376ca300f7ea61b14d5a11bf2509fe9c36e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3e73d618fb43cda80688aeaaf74384df8da172a99ea8bf9da90597472f1fdce",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-11-18T03:01:20Z",
    "title_canon_sha256": "b5bec7c189c3bebeaef002ea8634cc1b8cb0563cb33f57ea2f5b9d88f18284a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.07404",
    "kind": "arxiv",
    "version": 1
  }
}