Pith Number

pith:5GXMRPVB

pith:2015:5GXMRPVBDPUNJEBILHPX37LQTI

not attested not anchored not stored refs pending

Principal Component Analysis (PCA)-based Massive-MIMO Channel Feedback

Ernest Kurniawan, Jingon Joung, Sumei Sun

arxiv:1512.05068 v1 · 2015-12-16 · 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{5GXMRPVBDPUNJEBILHPX37LQTI}

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	2026-05-18T01:24:13.574818Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9aec8bea11be8d4902859df7dfd709a381cdf3cf8ca6177b5ffb84e7dcfb9a9

Aliases

arxiv: 1512.05068 · arxiv_version: 1512.05068v1 · doi: 10.48550/arxiv.1512.05068 · pith_short_12: 5GXMRPVBDPUN · pith_short_16: 5GXMRPVBDPUNJEBI · pith_short_8: 5GXMRPVB

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/5GXMRPVBDPUNJEBILHPX37LQTI \
  | 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: e9aec8bea11be8d4902859df7dfd709a381cdf3cf8ca6177b5ffb84e7dcfb9a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c4cdf5f4eadc9c07ff6d546f933692347741c003365e884b3fe0ae1f5cadf70",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-12-16T06:41:54Z",
    "title_canon_sha256": "95023ccdada5ff6495e81ca5bce89f760dd6f4a39492cd7d48ed0f248db424da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.05068",
    "kind": "arxiv",
    "version": 1
  }
}