newsupernova/vendor/magento/module-theme/view/frontend/templates/html/copyright.phtml

<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
?>
<small class="copyright">
    <span><?= /* @escapeNotVerified */ $block->getCopyright() ?></span>
</small>