/bitcoin.org/en/secure-your-wallet" title="Wallet Security" target="_blank" rel="noopener">Securing Your Wallet</a></li>
            <li><a href="https://github.com/BlockchainCommons/SmartCustodyBook" title="Smart Custody" target="_blank" rel="noopener">Smart Custody Book</a></li>
          </ul>
          <h2 id="checks"><a href="#checks">Security Checks:</a></h2>
          <ul>
            <li><a href="https://jlopp.github.io/bitcoin-confirmation-risk-calculator/" target="_blank" rel="noopener">Bitcoin Co