Pith Number

pith:OTR7QZKH

pith:2017:OTR7QZKHKWQSXXUW2OSA6DLF3X

not attested not anchored not stored refs pending

A Framework for Over-the-air Reciprocity Calibration for TDD Massive MIMO Systems

Alexis Decurninge, Dirk Slock, Florian Kaltenberger, Kalyana Gopala, Luc Deneire, Maxime Guillaud, Xiwen Jiang

arxiv:1710.10830 v1 · 2017-10-30 · cs.IT · eess.SP · 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{OTR7QZKHKWQSXXUW2OSA6DLF3X}

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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	2026-07-05T09:27:41.466220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74e3f8654755a12bde96d3a40f0d65ddf3250e2a4b6bb2dafce607a98220fb85

Aliases

arxiv: 1710.10830 · arxiv_version: 1710.10830v1 · doi: 10.48550/arxiv.1710.10830 · pith_short_12: OTR7QZKHKWQS · pith_short_16: OTR7QZKHKWQSXXUW · pith_short_8: OTR7QZKH

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/OTR7QZKHKWQSXXUW2OSA6DLF3X \
  | 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: 74e3f8654755a12bde96d3a40f0d65ddf3250e2a4b6bb2dafce607a98220fb85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4cc91b55b0dd8e50f3cb546cbdfa2743b6d6b4ea7773facf23cb52bc54564f56",
    "cross_cats_sorted": [
      "eess.SP",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-10-30T09:45:26Z",
    "title_canon_sha256": "d19f38c1c3daca1a5e660c03d96c6c483a2d3b220c5553451820400dbce87f95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.10830",
    "kind": "arxiv",
    "version": 1
  }
}