Pith Number

pith:RXIER5MC

pith:2013:RXIER5MCRMBUZOU2WQSD6KM5FZ

not attested not anchored not stored refs pending

How to Understand LMMSE Transceiver Design for MIMO Systems From Quadratic Matrix Programming

Chengwen Xing, Jingming Kuang, Shuo Li, Zesong Fei

arxiv:1301.0080 v4 · 2013-01-01 · 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{RXIER5MCRMBUZOU2WQSD6KM5FZ}

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	2026-05-18T03:32:04.894441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8dd048f5828b034cba9ab4243f299d2e7bd51d20f537ef6eb13d08f1bf70c223

Aliases

arxiv: 1301.0080 · arxiv_version: 1301.0080v4 · doi: 10.48550/arxiv.1301.0080 · pith_short_12: RXIER5MCRMBU · pith_short_16: RXIER5MCRMBUZOU2 · pith_short_8: RXIER5MC

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/RXIER5MCRMBUZOU2WQSD6KM5FZ \
  | 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: 8dd048f5828b034cba9ab4243f299d2e7bd51d20f537ef6eb13d08f1bf70c223

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d3297602d14130a1c64e787c9505b4a081c08ec53dd3dce19a3af04c20f119c",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-01-01T12:45:38Z",
    "title_canon_sha256": "994c13c5be05aa174da1b6c0a47f8b6ceafb32f6f7eddfe3503cca59346dcc11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.0080",
    "kind": "arxiv",
    "version": 4
  }
}