Pith Number

pith:K7Y5S6AI

pith:2019:K7Y5S6AIBUEHINHPS6NWHOKXFO

not attested not anchored not stored refs pending

A Survey on Spatial Modulation in Emerging Wireless Systems: Research Progresses and Applications

Beixiong Zheng, Kwang-Cheng Chen, Kyeong Jin Kim, Marco Di Renzo, Miaowen Wen, Naofal Al-Dhahir, Theodoros A. Tsiftsis

arxiv:1907.02941 v1 · 2019-07-03 · 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{K7Y5S6AIBUEHINHPS6NWHOKXFO}

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	2026-05-17T23:41:22.605417Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57f1d978080d087434ef979b63b9572b9f3be15ef554e0c08a7bc79cde7d94cc

Aliases

arxiv: 1907.02941 · arxiv_version: 1907.02941v1 · doi: 10.48550/arxiv.1907.02941 · pith_short_12: K7Y5S6AIBUEH · pith_short_16: K7Y5S6AIBUEHINHP · pith_short_8: K7Y5S6AI

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/K7Y5S6AIBUEHINHPS6NWHOKXFO \
  | 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: 57f1d978080d087434ef979b63b9572b9f3be15ef554e0c08a7bc79cde7d94cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d028d35ff2b43e034c50ff4f55c91e54884d20221dcd4bb58b3c2af64df5722e",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-07-03T07:54:00Z",
    "title_canon_sha256": "b864703fe553db17a0fcc95062ae58e279b277ebb1197f3a490c64ebe1d3981e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02941",
    "kind": "arxiv",
    "version": 1
  }
}