Pith Number

pith:P43RBQPV

pith:2010:P43RBQPV3SWHOFP7FOAXEHN7QX

not attested not anchored not stored refs pending

Robust Beamforming for Amplify-and-Forward MIMO Relay Systems Based on Quadratic Matrix Programming

Chengwen Xing, Shaodan Ma, Tung-Sang Ng, Yik-Chung Wu

arxiv:1005.5574 v1 · 2010-05-31 · 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{P43RBQPV3SWHOFP7FOAXEHN7QX}

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	2026-05-18T00:58:44.112984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f3710c1f5dcac7715ff2b81721dbf85e4e727b4f182f53c024043a061face8b

Aliases

arxiv: 1005.5574 · arxiv_version: 1005.5574v1 · doi: 10.48550/arxiv.1005.5574 · pith_short_12: P43RBQPV3SWH · pith_short_16: P43RBQPV3SWHOFP7 · pith_short_8: P43RBQPV

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/P43RBQPV3SWHOFP7FOAXEHN7QX \
  | 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: 7f3710c1f5dcac7715ff2b81721dbf85e4e727b4f182f53c024043a061face8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "105e730552f204817b9518bd456f69b1272232795ba77e286dc391e5528740ea",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-05-31T03:17:01Z",
    "title_canon_sha256": "8867314e2d0c35d790ca2d14fef957703edc7f35e056bcdf1d98ffe7d7252ed6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.5574",
    "kind": "arxiv",
    "version": 1
  }
}