Pith Number

pith:QZELANRF

pith:2014:QZELANRFUQNFYQTS73WOLJJVVH

not attested not anchored not stored refs pending

Hadamard Coded Modulation: An Alternative to OFDM for Optical Wireless Communications

Maite Brandt-Pearce, Mohammad Noshad

arxiv:1404.1148 v1 · 2014-04-04 · 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{QZELANRFUQNFYQTS73WOLJJVVH}

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	2026-05-18T02:54:54.094576Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8648b03625a41a5c4272feece5a535a9c5a6995b7e9b6a3789505483e885ea40

Aliases

arxiv: 1404.1148 · arxiv_version: 1404.1148v1 · doi: 10.48550/arxiv.1404.1148 · pith_short_12: QZELANRFUQNF · pith_short_16: QZELANRFUQNFYQTS · pith_short_8: QZELANRF

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/QZELANRFUQNFYQTS73WOLJJVVH \
  | 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: 8648b03625a41a5c4272feece5a535a9c5a6995b7e9b6a3789505483e885ea40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5489d53ef6e24b21c800cae850613f68502f1f3ac0b2d93ec343809e734bd59",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-04-04T03:45:53Z",
    "title_canon_sha256": "894de2d77900a703b4edd4acb87a23826754005d2590676e9ae2f25b4f01ec5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.1148",
    "kind": "arxiv",
    "version": 1
  }
}