Pith Number

pith:OTBK7GHK

pith:2014:OTBK7GHK42A3QTLBYUVEYRQRAX

not attested not anchored not stored refs pending

Two-Stage Beamformer Design for Massive MIMO Downlink By Trace Quotient Formulation

Donggun Kim, Gilwon Lee, Youngchul Sung

arxiv:1411.7121 v1 · 2014-11-26 · 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{OTBK7GHK42A3QTLBYUVEYRQRAX}

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	2026-05-18T00:57:51.296079Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74c2af98eae681b84d61c52a4c461105ced0bfb6a3c92fb40dd2a45fc6a5facb

Aliases

arxiv: 1411.7121 · arxiv_version: 1411.7121v1 · doi: 10.48550/arxiv.1411.7121 · pith_short_12: OTBK7GHK42A3 · pith_short_16: OTBK7GHK42A3QTLB · pith_short_8: OTBK7GHK

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/OTBK7GHK42A3QTLBYUVEYRQRAX \
  | 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: 74c2af98eae681b84d61c52a4c461105ced0bfb6a3c92fb40dd2a45fc6a5facb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70c1bbbbbbe36de2e7531a06e686d7d2bce107f93390e94d8bb7424ae24ab987",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-11-26T06:48:32Z",
    "title_canon_sha256": "0f789eaebd8eb0242689bc6ef206877e07e2ebbf3eb2c3785bb7f098326aef2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.7121",
    "kind": "arxiv",
    "version": 1
  }
}