Pith Number

pith:7JZI44Y4

pith:2019:7JZI44Y4FA2PUS676EK22BHYWN

not attested not anchored not stored refs pending

Massive MIMO Extensions to the COST 2100 Channel Model: Modeling and Validation

Fredrik Tufvesson, Jose Flordelis, Ove Edfors, Xuhong Li

arxiv:1905.04931 v1 · 2019-05-13 · eess.SP · 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{7JZI44Y4FA2PUS676EK22BHYWN}

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	2026-05-17T23:46:23.074373Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa728e731c2834fa4bdff115ad04f8b35e3e6a76501fd4b9b8ba974b325a85f3

Aliases

arxiv: 1905.04931 · arxiv_version: 1905.04931v1 · doi: 10.48550/arxiv.1905.04931 · pith_short_12: 7JZI44Y4FA2P · pith_short_16: 7JZI44Y4FA2PUS67 · pith_short_8: 7JZI44Y4

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/7JZI44Y4FA2PUS676EK22BHYWN \
  | 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: fa728e731c2834fa4bdff115ad04f8b35e3e6a76501fd4b9b8ba974b325a85f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab765dfa46119c6fdebad465d18ea48643245bd7c36a133f34e58c7a0a8c8952",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-05-13T09:27:27Z",
    "title_canon_sha256": "516d8a3233ea7a3502c88e96c9e61ce4daabea92b87403976411cb082c28b3e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.04931",
    "kind": "arxiv",
    "version": 1
  }
}