Pith Number

pith:JMPG43FH

pith:2019:JMPG43FHOCJQV6XU2XSTM4N5A4

not attested not anchored not stored refs pending

Deep Learning for UL/DL Channel Calibration in Generic Massive MIMO Systems

Alessio Zappone, Chau Yuen, Chongwen Huang, George C. Alexandropoulos, M\'erouane Debbah

arxiv:1903.02875 v2 · 2019-03-07 · cs.IT · cs.AI · cs.LG · 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{JMPG43FHOCJQV6XU2XSTM4N5A4}

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	2026-05-17T23:46:28.786095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b1e6e6ca770930afaf4d5e53671bd0733ca1b31e9461b5d98f2edc75b33cf4f

Aliases

arxiv: 1903.02875 · arxiv_version: 1903.02875v2 · doi: 10.48550/arxiv.1903.02875 · pith_short_12: JMPG43FHOCJQ · pith_short_16: JMPG43FHOCJQV6XU · pith_short_8: JMPG43FH

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/JMPG43FHOCJQV6XU2XSTM4N5A4 \
  | 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: 4b1e6e6ca770930afaf4d5e53671bd0733ca1b31e9461b5d98f2edc75b33cf4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db7cd82f80040342598d325b994ab7642ee274402e2dad603e34f8371c058f26",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-03-07T12:33:00Z",
    "title_canon_sha256": "3525ea5df4c2d95724dda8483eb374a5143ab1f7e8893b45315e2d10fce964b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.02875",
    "kind": "arxiv",
    "version": 2
  }
}