Pith Number

pith:EK6777TF

pith:2018:EK6777TFVTGS7N6VGSTFW4UKTC

not attested not anchored not stored refs pending

Enabling Covariance-Based Feedback in Massive MIMO: A User Classification Approach

David Gesbert, Shuang Qiu, Tao Jiang

arxiv:1807.02488 v2 · 2018-07-06 · 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{EK6777TFVTGS7N6VGSTFW4UKTC}

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	2026-05-18T00:07:27.467567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22bdfffe65accd2fb7d534a65b728a989f78d9c08967b88d2e8a3b7f6f7079c7

Aliases

arxiv: 1807.02488 · arxiv_version: 1807.02488v2 · doi: 10.48550/arxiv.1807.02488 · pith_short_12: EK6777TFVTGS · pith_short_16: EK6777TFVTGS7N6V · pith_short_8: EK6777TF

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/EK6777TFVTGS7N6VGSTFW4UKTC \
  | 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: 22bdfffe65accd2fb7d534a65b728a989f78d9c08967b88d2e8a3b7f6f7079c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a15ab7b07d2d332879f8515abd14c156ecbde4f9b0378db101ca453aa2d224b4",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-07-06T17:04:03Z",
    "title_canon_sha256": "90c38183fa1d14524ccb11f6e6b56b87933b0c802ab22cd1c2d9424debe0ed8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.02488",
    "kind": "arxiv",
    "version": 2
  }
}