Pith Number

pith:H5WHINC5

pith:2009:H5WHINC5RWLH3DKPMJ2IA73O7W

not attested not anchored not stored refs pending

Event-Driven Optimal Feedback Control for Multi-Antenna Beamforming

Dongku Kim, Kaibin Huang, Vincent K. N. Lau

arxiv:0909.4983 v1 · 2009-09-28 · 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{H5WHINC5RWLH3DKPMJ2IA73O7W}

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	2026-05-18T02:11:37.140150Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f6c74345d8d967d8d4f6274807f6efdbcd54e578e6d007e5ab5427c78852b4e

Aliases

arxiv: 0909.4983 · arxiv_version: 0909.4983v1 · doi: 10.48550/arxiv.0909.4983 · pith_short_12: H5WHINC5RWLH · pith_short_16: H5WHINC5RWLH3DKP · pith_short_8: H5WHINC5

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/H5WHINC5RWLH3DKPMJ2IA73O7W \
  | 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: 3f6c74345d8d967d8d4f6274807f6efdbcd54e578e6d007e5ab5427c78852b4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "455a6097c5581515b17775243efa2f8b8aaaa339b43c365ce016ff9e06b86df5",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-09-28T01:14:54Z",
    "title_canon_sha256": "a106e0235edd80b29184dbe6dada50710ba070d2c75c2773e1bdccb9f03dd18b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.4983",
    "kind": "arxiv",
    "version": 1
  }
}