Pith Number

pith:AULWZ75I

pith:2018:AULWZ75I53RE5VGVYODWMXCY7J

not attested not anchored not stored refs pending

Frequency-Selective Hybrid Beamforming Based on Implicit CSI for Millimeter Wave Systems

Gerhard Fettweis, Hsiao-Lan Chiang, Tobias Kadur, Wolfgang Rave

arxiv:1802.06670 v3 · 2018-02-19 · 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{AULWZ75I53RE5VGVYODWMXCY7J}

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	2026-05-18T00:22:22.416420Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05176cffa8eee24ed4d5c387665c58fa552094598169bb2c8835bed6e815182e

Aliases

arxiv: 1802.06670 · arxiv_version: 1802.06670v3 · doi: 10.48550/arxiv.1802.06670 · pith_short_12: AULWZ75I53RE · pith_short_16: AULWZ75I53RE5VGV · pith_short_8: AULWZ75I

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/AULWZ75I53RE5VGVYODWMXCY7J \
  | 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: 05176cffa8eee24ed4d5c387665c58fa552094598169bb2c8835bed6e815182e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7518293f99aa751a89bc59bf0c7c22401aeea50db18304a44c3206c234f89c10",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-02-19T15:32:54Z",
    "title_canon_sha256": "622da69bf58cdb1714176bbcb2bad38110941e3df9753398c845cac568c8bcdd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.06670",
    "kind": "arxiv",
    "version": 3
  }
}