Pith Number

pith:WSPCUJLY

pith:2017:WSPCUJLY43AK54L5X5SRMJRUQJ

not attested not anchored not stored refs pending

Spectral and Energy Efficiency of Superimposed Pilots in Uplink Massive MIMO

Daniel Verenzuela, Emil Bj\"ornson, Luca Sanguinetti

arxiv:1709.07722 v1 · 2017-09-22 · 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{WSPCUJLY43AK54L5X5SRMJRUQJ}

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	2026-05-18T00:34:32.473993Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b49e2a2578e6c0aef17dbf65162634826656ae16cd54626dd1052df3f5593a3a

Aliases

arxiv: 1709.07722 · arxiv_version: 1709.07722v1 · doi: 10.48550/arxiv.1709.07722 · pith_short_12: WSPCUJLY43AK · pith_short_16: WSPCUJLY43AK54L5 · pith_short_8: WSPCUJLY

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/WSPCUJLY43AK54L5X5SRMJRUQJ \
  | 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: b49e2a2578e6c0aef17dbf65162634826656ae16cd54626dd1052df3f5593a3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21597797525164bdeaad9cdfa76d30b451c3772324ef4d20b97372924b00409e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2017-09-22T12:53:18Z",
    "title_canon_sha256": "76aa5b1bcab4ce41199a2d99943607d0a44d3e04ce43832f483d664856dea19e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.07722",
    "kind": "arxiv",
    "version": 1
  }
}