Pith Number

pith:CXCLNZT3

pith:2016:CXCLNZT3KMXUPYLBZ5Y7HZL6TL

not attested not anchored not stored refs pending

A Random Access Protocol for Pilot Allocation in Crowded Massive MIMO Systems

Elisabeth de Carvalho, Emil Bj\"ornson, Erik G. Larsson, Jesper H. S{\o}rensen, Petar Popovski

arxiv:1604.04248 v2 · 2016-04-14 · cs.IT · cs.NI · 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{CXCLNZT3KMXUPYLBZ5Y7HZL6TL}

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	2026-05-18T00:50:57.248397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15c4b6e67b532f47e161cf71f3e57e9af55133aa3235f110d774e120fed6a427

Aliases

arxiv: 1604.04248 · arxiv_version: 1604.04248v2 · doi: 10.48550/arxiv.1604.04248 · pith_short_12: CXCLNZT3KMXU · pith_short_16: CXCLNZT3KMXUPYLB · pith_short_8: CXCLNZT3

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/CXCLNZT3KMXUPYLBZ5Y7HZL6TL \
  | 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: 15c4b6e67b532f47e161cf71f3e57e9af55133aa3235f110d774e120fed6a427

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7b23b84cfc8e8c64d92a5a7dc69f1c740cda60c9bc04e1784e0fd9a8a4fb6ab",
    "cross_cats_sorted": [
      "cs.NI",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-04-14T18:18:55Z",
    "title_canon_sha256": "369411e0f7699c4ff96541377cabcff55a9d63c0236ec1e59fdc1b2a8276687b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.04248",
    "kind": "arxiv",
    "version": 2
  }
}