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        </div>
        <p>MMRs and <a href="https://commonware.xyz/blogs/threshold-simplex.html">threshold consensus signatures</a> make for a powerful combination. Consider, for example, using an MMR to store successfully executed blockchain transactions in the order of their execution. If the MMR root is included in the block digest, then a user (or external blockchain) running a lite client can prove successful execution of any historical transaction from a consensus certificate and the latest MMR root