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<div class="container">

  <div class="hero">
    <h1>OptiTransfer Data</h1>
    <p>Premium web corpora for LLM pre-training, fine-tuning, RAG, and multilingual NLP. Swiss-registered. EU AI Act compliant. Quality-scored, PII-redacted, SHA256-verified.</p>
    <div>
      <span class="badge">Swiss-Registered</span>
      <span class="badge">EU AI Act Compliant</span>
      <span class="badge">SHA256 Verified</span>
      <span class="badge">PII Redacted</span>
    </div>
  </div>

  <hr />

  <div class="section">
    <h2>Capabilities</h2>
    <div class="features">
      <div class="feature-card">
        <strong>LLM Training</strong>
        <p>Sovereign national web corpora at scale for pre-training and supervised fine-tuning</p>
      </div>
      <div class="feature-card">
        <strong>RAG Pipelines</strong>
        <p>Pre-chunked, embedding-ready corpora with quality scores per chunk</p>
      </div>
      <div class="feature-card">
        <strong>Regulatory NLP</strong>
        <p>Domain-classified, jurisdiction-specific government and institutional data</p>
      </div>
      <div class="feature-card">
        <strong>Research</strong>
        <p>Reproducible datasets with full metadata, provenance tracking, and QA reports</p>
      </div>
    </div>
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  <div class="section">
    <h2>Available Datasets</h2>
    <table>
      <thead>
        <tr>
          <th>Dataset</th>
          <th>Records</th>
          <th>Formats</th>
          <th>Access</th>
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      </thead>
      <tbody>
        <tr>
          <td>
            <strong><a href="https://huggingface.co/datasets/OptiTransferData/swiss-web-premium-ch" target="_blank">*.ch Swiss Web Premium (A+)</a></strong>
          </td>
          <td>110,491</td>
          <td>Parquet, JSONL, Language Splits, RAG Chunks</td>
          <td>
            <a href="https://huggingface.co/datasets/OptiTransferData/swiss-web-premium-ch" target="_blank">Sample</a> |
            <a href="https://huggingface.co/datasets/OptiTransferData/swiss-web-premium-ch-full" target="_blank">Full</a>
          </td>
        </tr>
      </tbody>
    </table>

    <div class="dataset-detail">
      <p>Flagship Swiss web corpus from the .ch ccTLD. 112.4M tokens across 78 fields. Multilingual coverage: German (61.2%), French (19.0%), English (10.5%), Italian (4.7%), and 25 additional languages. Nine-component quality model, full provenance chain, and independent QA report.</p>
      <div class="tag-group">
        <span class="tag">LLM Pre-Training</span>
        <span class="tag">Supervised Fine-Tuning (SFT)</span>
        <span class="tag">Retrieval-Augmented Generation</span>
        <span class="tag">Multilingual NLP</span>
        <span class="tag">German Language Models</span>
        <span class="tag">French Language Models</span>
        <span class="tag">Swiss Market AI</span>
        <span class="tag">EU AI Act Compliance</span>
        <span class="tag">Domain-Specific Training</span>
        <span class="tag">Web Corpus Research</span>
        <span class="tag">Text Classification</span>
        <span class="tag">Summarisation</span>
        <span class="tag">Question Answering</span>
        <span class="tag">Translation</span>
      </div>
    </div>

    <p style="font-size:0.82rem; color:#64748b; margin-top:1rem;">Free gated samples available on each dataset. Request access to evaluate before purchasing.</p>
  </div>

  <div class="section">
    <h2>Quality Standards</h2>
    <ul class="quality-list">
      <li>Independent QA audits with documented accuracy metrics</li>
      <li>SHA-256 integrity verification on all production files</li>
      <li>Quality scoring per record (0 to 100 scale, nine components)</li>
      <li>Domain classification and language detection</li>
      <li>EU AI Act compliance with full data provenance and licensing transparency</li>
      <li>Content-level and URL-level deduplication</li>
      <li>PII detection and redaction (email, phone, IBAN, AHV, credit card)</li>
      <li>Croissant metadata for ML interoperability</li>
    </ul>
  </div>

  <div class="section">
    <h2>Licensing and Pricing</h2>
    <div class="pricing-grid">
      <div class="price-card">
        <h3>Sample</h3>
        <div class="price">Free</div>
        <p>Gated access. Evaluate data quality, schema, and documentation before committing.</p>
      </div>
      <div class="price-card featured">
        <h3>Full Dataset</h3>
        <div class="price">Commercial</div>
        <p>Complete production data with commercial licence. All formats included.</p>
      </div>
      <div class="price-card">
        <h3>Enterprise</h3>
        <div class="price">Custom</div>
        <p>Dedicated support, SLA, bespoke corpora, volume pricing.</p>
      </div>
    </div>
    <p style="margin-top:1rem; font-size:0.88rem; color:#374151;">Contact us for a quote: <a href="mailto:data@optitransfer.ch">data@optitransfer.ch</a></p>
    <div class="payment">
      <div class="payment-item">Bank Transfer (SEPA/SWIFT)</div>
      <div class="payment-item">TWINT (Swiss)</div>
      <div class="payment-item">Crypto (BTC / ETH / SOL)</div>
    </div>
  </div>

  <div class="contact-bar">
    <strong>OptiTransfer Data</strong>
    <p>Swiss-registered | <a href="https://optitransfer.ch">optitransfer.ch</a> | <a href="mailto:data@optitransfer.ch">data@optitransfer.ch</a></p>
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