Pith Number

pith:FAWSMKPC

pith:2017:FAWSMKPCNOZQLTX4XARYYZFIHI

not attested not anchored not stored refs pending

Frequency-domain Compressive Channel Estimation for Frequency-Selective Hybrid mmWave MIMO Systems

Javier Rodr\'iguez-Fern\'andez, Kiran Venugopal, Nuria Gonz\'alez-Prelcic, Robert W. Heath Jr

arxiv:1704.08572 v1 · 2017-04-27 · 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{FAWSMKPCNOZQLTX4XARYYZFIHI}

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	2026-05-18T00:45:27.359668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

282d2629e26bb305cefcb8238c64a83a25fc8baa80770a5f58050e6370c7305a

Aliases

arxiv: 1704.08572 · arxiv_version: 1704.08572v1 · doi: 10.48550/arxiv.1704.08572 · pith_short_12: FAWSMKPCNOZQ · pith_short_16: FAWSMKPCNOZQLTX4 · pith_short_8: FAWSMKPC

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/FAWSMKPCNOZQLTX4XARYYZFIHI \
  | 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: 282d2629e26bb305cefcb8238c64a83a25fc8baa80770a5f58050e6370c7305a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b14823db969c2f708ae803e42b10e45fc731662c9dcd96f337b5102be0825bb4",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-04-27T13:51:19Z",
    "title_canon_sha256": "4e07305ee498e0aba6346aa7c896d227ebfccf2cd7c5c7ce648a99b64ebe55c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.08572",
    "kind": "arxiv",
    "version": 1
  }
}