Pith Number

pith:HWTU4N5Z

pith:2018:HWTU4N5ZOMRNMRHKQMUUJDIMU3

not attested not anchored not stored refs pending

Sparse mmWave OFDM Channel Estimation Using Compressed Sensing in OFDM Systems

Andrea J. Goldsmith, Felipe Gomez-Cuba

arxiv:1812.07236 v1 · 2018-12-18 · 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{HWTU4N5ZOMRNMRHKQMUUJDIMU3}

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	2026-05-17T23:58:01.087799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3da74e37b97322d644ea8329448d0ca6f725f80a32079945be9826b07d4b5ad0

Aliases

arxiv: 1812.07236 · arxiv_version: 1812.07236v1 · doi: 10.48550/arxiv.1812.07236 · pith_short_12: HWTU4N5ZOMRN · pith_short_16: HWTU4N5ZOMRNMRHK · pith_short_8: HWTU4N5Z

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/HWTU4N5ZOMRNMRHKQMUUJDIMU3 \
  | 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: 3da74e37b97322d644ea8329448d0ca6f725f80a32079945be9826b07d4b5ad0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb26c74dbb7058f86f4a1b1b82e7bf0032ef222bc72d207a73e2b9645f029465",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-12-18T08:45:09Z",
    "title_canon_sha256": "409848845591573708251feb0a968e75828a69a4cbd5abaa96b8f4f5f22c167c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.07236",
    "kind": "arxiv",
    "version": 1
  }
}