Pith Number

pith:2KSEMNWD

pith:2019:2KSEMNWDJZWYFH5G6HRCVULTMG

not attested not anchored not stored refs pending

Towards a Connected Sky: Performance of Beamforming with Down-tilted Antennas for Ground and UAV User Co-existence

Nicola Marchetti, Ramy Amer, Walid Saad

arxiv:1907.05085 v1 · 2019-07-11 · 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{2KSEMNWDJZWYFH5G6HRCVULTMG}

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	2026-05-17T23:40:54.011065Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2a44636c34e6d829fa6f1e22ad17361b1c054ff7cd8fc183f46666689c6f913

Aliases

arxiv: 1907.05085 · arxiv_version: 1907.05085v1 · doi: 10.48550/arxiv.1907.05085 · pith_short_12: 2KSEMNWDJZWY · pith_short_16: 2KSEMNWDJZWYFH5G · pith_short_8: 2KSEMNWD

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/2KSEMNWDJZWYFH5G6HRCVULTMG \
  | 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: d2a44636c34e6d829fa6f1e22ad17361b1c054ff7cd8fc183f46666689c6f913

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aeda2d274c7d77926c543bb15907dcff6cc1311975f1fd7cba4a8f213091cbed",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-07-11T10:14:46Z",
    "title_canon_sha256": "05a83e684f37cb96a874776e188f3f69b966c4d116efc970d97691f4c5dd38dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.05085",
    "kind": "arxiv",
    "version": 1
  }
}