Pith Number

pith:QX2CGKXK

pith:2021:QX2CGKXK7YVN3KV6QIDNLADR7T

not attested not anchored not stored refs pending

Geometry-Based Stochastic Line-of-Sight Probability Model for A2G Channels under Urban Scenarios

Fei Bai, Jie Li, Kai Mao, Minghui Pang, Qiuming Zhu, Weizhi Zhong, Xiaomin Chen

arxiv:2109.02222 v1 · 2021-09-06 · 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{QX2CGKXK7YVN3KV6QIDNLADR7T}

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	2026-07-05T04:48:35.903443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85f4232aeafe2addaabe8206d58071fce49a5449af36507e59dd15147b54a253

Aliases

arxiv: 2109.02222 · arxiv_version: 2109.02222v1 · doi: 10.48550/arxiv.2109.02222 · pith_short_12: QX2CGKXK7YVN · pith_short_16: QX2CGKXK7YVN3KV6 · pith_short_8: QX2CGKXK

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/QX2CGKXK7YVN3KV6QIDNLADR7T \
  | 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: 85f4232aeafe2addaabe8206d58071fce49a5449af36507e59dd15147b54a253

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a153ce50e7c205c8f14bb32bbcd5309e81c9da97010cebbdc31d601ddd485f66",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2021-09-06T03:21:30Z",
    "title_canon_sha256": "1a57ca9ae4d79d871e7ee8c2510bd358cc7630f9700db60331522fb4589ddc16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.02222",
    "kind": "arxiv",
    "version": 1
  }
}