Pith Number

pith:WOTM6QTC

pith:2009:WOTM6QTCEJB4VOF7ROZILPSEQU

not attested not anchored not stored refs pending

Optimization of Training and Feedback Overhead for Beamforming over Block Fading Channels

Michael L. Honig, Wiroonsak Santipach

arxiv:0908.2277 v2 · 2009-08-17 · 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{WOTM6QTCEJB4VOF7ROZILPSEQU}

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	2026-05-18T04:35:14.980873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3a6cf42622243cab8bf8bb285be448524f851c54d432268d56e1ceb0bf6264a

Aliases

arxiv: 0908.2277 · arxiv_version: 0908.2277v2 · doi: 10.48550/arxiv.0908.2277 · pith_short_12: WOTM6QTCEJB4 · pith_short_16: WOTM6QTCEJB4VOF7 · pith_short_8: WOTM6QTC

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/WOTM6QTCEJB4VOF7ROZILPSEQU \
  | 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: b3a6cf42622243cab8bf8bb285be448524f851c54d432268d56e1ceb0bf6264a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8a4ccbaea02b1863bae5f7b43cac9027b5a265ff45683b4585077ee2abf5c03",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-08-17T03:05:24Z",
    "title_canon_sha256": "8dffbc43f3cfc33ab9c7ca9a12f4f516d6f5879d792e894ed7c96eb507d1fbd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2277",
    "kind": "arxiv",
    "version": 2
  }
}