Pith Number

pith:4O2Y7CN4

pith:2021:4O2Y7CN42ZUPJ4EPHEP2QV6S57

not attested not anchored not stored refs pending

Fully Digital and Hybrid Beamforming Design For Millimeter-Wave MIMO-OFDM Two-Way Relaying Systems

Khaled Ardah, Martin Haardt, Sepideh Gherekhloo

arxiv:2105.09849 v1 · 2021-05-20 · 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{4O2Y7CN42ZUPJ4EPHEP2QV6S57}

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	2026-07-05T02:41:57.832422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3b58f89bcd668f4f08f391fa857d2efd663a34e0f517c5a21f791c3674dbc63

Aliases

arxiv: 2105.09849 · arxiv_version: 2105.09849v1 · doi: 10.48550/arxiv.2105.09849 · pith_short_12: 4O2Y7CN42ZUP · pith_short_16: 4O2Y7CN42ZUPJ4EP · pith_short_8: 4O2Y7CN4

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/4O2Y7CN42ZUPJ4EPHEP2QV6S57 \
  | 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: e3b58f89bcd668f4f08f391fa857d2efd663a34e0f517c5a21f791c3674dbc63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "712dbbf1cbe4b5d8017d49e4a50eb034dd038b4051073886833b2a4b12150213",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2021-05-20T15:48:25Z",
    "title_canon_sha256": "a6dc4c48b9eeabf1fa1f8a1d1d996b2a983997f27e66842b66daac9bec1b310e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.09849",
    "kind": "arxiv",
    "version": 1
  }
}