Pith Number

pith:VCDAFVKY

pith:2016:VCDAFVKYJ4T7E2Z7RICKKAUEOF

not attested not anchored not stored refs pending

Channel Covariance Estimation in Massive MIMO Frequency Division Duplex Systems

Alexis Decurninge, Dirk Slock, Maxime Guillaud

arxiv:1602.05741 v1 · 2016-02-18 · cs.IT · math.IT · stat.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VCDAFVKYJ4T7E2Z7RICKKAUEOF}

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	2026-05-18T01:20:23.327351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a88602d5584f27f26b3f8a04a50284717d778078ca7e6229e59d14414e6ed6fb

Aliases

arxiv: 1602.05741 · arxiv_version: 1602.05741v1 · doi: 10.48550/arxiv.1602.05741 · pith_short_12: VCDAFVKYJ4T7 · pith_short_16: VCDAFVKYJ4T7E2Z7 · pith_short_8: VCDAFVKY

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/VCDAFVKYJ4T7E2Z7RICKKAUEOF \
  | 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: a88602d5584f27f26b3f8a04a50284717d778078ca7e6229e59d14414e6ed6fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7eb636bf54e8be4059d6112fd4525dd7af2a1c295b58e7b7241a3bc96398e684",
    "cross_cats_sorted": [
      "math.IT",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-02-18T10:15:14Z",
    "title_canon_sha256": "5c1e714520cd866a9d943b4f11034dd40e2a67db88a018ea0f9f914aa69c7546"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.05741",
    "kind": "arxiv",
    "version": 1
  }
}