Pith Number

pith:2W7ARPAB

pith:2015:2W7ARPABUXUPWZSDMAXJDVVKZL

not attested not anchored not stored refs pending

On Massive MIMO Physical Layer Cryptosystem

Amin Sakzad, Ron Steinfeld

arxiv:1507.08015 v1 · 2015-07-29 · 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{2W7ARPABUXUPWZSDMAXJDVVKZL}

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	2026-05-18T01:36:08.646476Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5be08bc01a5e8fb6643602e91d6aacaf162d37cac0f45fc6ebeb8a00470fa86

Aliases

arxiv: 1507.08015 · arxiv_version: 1507.08015v1 · doi: 10.48550/arxiv.1507.08015 · pith_short_12: 2W7ARPABUXUP · pith_short_16: 2W7ARPABUXUPWZSD · pith_short_8: 2W7ARPAB

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/2W7ARPABUXUPWZSDMAXJDVVKZL \
  | 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: d5be08bc01a5e8fb6643602e91d6aacaf162d37cac0f45fc6ebeb8a00470fa86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba60ae1e66fb7a3caf61b9092d64df0f593088e29971681acc04d6c7d3c79119",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-07-29T04:46:17Z",
    "title_canon_sha256": "d9952cca0d5b06e981a114817aaf6f94b9ce17934813778b85b18f9c1edb19bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.08015",
    "kind": "arxiv",
    "version": 1
  }
}