Pith Number

pith:UPG6ALYE

pith:2008:UPG6ALYEZVBGI65SYFYXXKXIS3

not attested not anchored not stored refs pending

Quantized Multimode Precoding in Spatially Correlated Multi-Antenna Channels

Akbar Sayeed, Vasanthan Raghavan, Venu Veeravalli

arxiv:0801.3526 v1 · 2008-01-23 · 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{UPG6ALYEZVBGI65SYFYXXKXIS3}

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	2026-05-18T01:29:12.370547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3cde02f04cd42647bb2c1717baae896c2e6e720d4ba4d99099b4c10495175d6

Aliases

arxiv: 0801.3526 · arxiv_version: 0801.3526v1 · doi: 10.48550/arxiv.0801.3526 · pith_short_12: UPG6ALYEZVBG · pith_short_16: UPG6ALYEZVBGI65S · pith_short_8: UPG6ALYE

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/UPG6ALYEZVBGI65SYFYXXKXIS3 \
  | 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: a3cde02f04cd42647bb2c1717baae896c2e6e720d4ba4d99099b4c10495175d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb19dfa802181e85cdd8bf62a3014e49ee8fda4630bd0cd47770ab7ea7564e2d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "",
    "primary_cat": "cs.IT",
    "submitted_at": "2008-01-23T08:52:25Z",
    "title_canon_sha256": "be2b820c162e9f29b216881d4f86d798811770423e016b57db7bca8ed6e57962"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.3526",
    "kind": "arxiv",
    "version": 1
  }
}