How to create an Author Box using the Gravatar API

functions.php

<?php
// DO NOT INCLUDE OPENING PHP TAG AND PLACE INTO FUNCTIONS.PHP

/**
 * Get Author's Gravatar profile data.
 */
function custom_get_gravatar_profile() {

	// Get author data
	$author    = strtolower( trim( get_the_author_meta( 'email' ) ) );
	$author_ID = get_the_author_meta( 'ID' );

	// Check for transient cache
	if ( false === ( $gravatar_profile = get_transient( 'gravatar_profile_' . $author_ID ) ) ) {

		// Check if author has a Gravatar
		$response = wp_remote_get( 'http://www.gravatar.com/' . md5( $author ) . '.php' );

			// Did we recieve profile info?
			if ( ! 200 == wp_remote_retrieve_response_code( $response ) ) {
				return '<div id="message" class="error"><p>' . sprintf( __( 'This user does not have a Gravatar! Why not <a href="%s">set up a profile</a>?', 'textdomain' ), 'http://en.gravatar.com/' ) . '</p></div>';
			}

		// Parsing profile data from Gravatar response
		$body = unserialize( wp_remote_retrieve_body( $response ) );

			// Is our data in an array?
			if ( ! is_array( $body ) ) {
				return '<div id="message" class="error"><p>' . __( 'There was an error extracting the profile from Gravatar\'s API. Please try again later.', 'textdomain' ) . '</p></div>';
			}

		// Shift the profile data, which is two levels deep into an array
		$gravatar_profile = current( current( $body ) );

		// Place profile in a transient, expire after 12 hours
		set_transient( 'gravatar_profile_' . $author_ID, $gravatar_profile, 12 * HOUR_IN_SECONDS );
	}

	// Return the profile
	return $gravatar_profile;

}

genesis-authorbox.php

<?php
// DO NOT INCLUDE OPENING PHP TAG AND PLACE INTO FUNCTIONS.PHP

add_filter( 'genesis_author_box', 'custom_author_box' );
/**
 * Author box
 */
function  custom_author_box() { 
	// Get author data
	$author = custom_get_gravatar_profile();

	// Set variables
	$author_avatar    = $author['thumbnailUrl'];
	$author_first     = $author['name']['givenName'];
	$author_last      = $author['name']['familyName'];
	$author_full_name = $author_first . ' ' . $author_last;
	$author_bio       = $author['aboutMe'];

	?>

	<div class="author-box">
		<img src="<?php echo esc_url( $author_avatar ); ?>" class="avatar author-avatar alignleft" alt="<?php echo esc_html( $author_full_name ); ?>" title="<?php esc_html( $author_full_name ); ?>" height="70" width="70" />
		<p class="author-name"><strong><?php _e( 'About', 'realtor' ); ?> <?php echo esc_html( $author_full_name ); ?></strong></p>
		<p class="author-bio"><?php echo esc_html( $author_bio ); ?></p>
	<div class="author-box">
		<img src="<?php echo esc_url( $author_avatar ); ?>" class="avatar author-avatar alignleft" alt="<?php echo esc_html( $author_full_name ); ?>" title="<?php esc_html( $author_full_name ); ?>" height="70" width="70" />
		<p class="author-name"><strong><?php _e( 'About', 'realtor' ); ?> <?php echo esc_html( $author_full_name ); ?></strong></p>
		<p class="author-bio"><?php echo esc_html( $author_bio ); ?></p>
		<?php if ( $author['accounts'] ) : ?>
			<ul class="author-socials">
				<?php foreach ( $author['accounts'] as $key => $account ) : ?>
					<li class="author-social"><a href="<?php echo esc_url( $account['url'] ); ?>"><i class="genericon genericon-<?php echo esc_html( $account['shortname'] ); ?>"></i></a></li>
				<?php endforeach; ?>
			</ul>
		<?php endif; ?>
	</div><!-- .author-box -->
	</div><!-- .authorbox -->

<?php }

gravatar-array-output

Array
(
    [id] => 3631430
    [hash] => 28af3e39c0a1fe4c31367c7e9a8bcac3
    [requestHash] => 28af3e39c0a1fe4c31367c7e9a8bcac3
    [profileUrl] => http://gravatar.com/gregrickaby
    [preferredUsername] => gregrickaby
    [thumbnailUrl] => http://1.gravatar.com/avatar/28af3e39c0a1fe4c31367c7e9a8bcac3
    [photos] => Array
        (
            [0] => Array
                (
                    [value] => http://1.gravatar.com/avatar/28af3e39c0a1fe4c31367c7e9a8bcac3
                    [type] => thumbnail
                )

        )

    [currency] => Array
        (
        )

    [profileBackground] => Array
        (
            [color] => #
            [url] => https://secure.gravatar.com/bg/3631430/d3a13611c357b6cfe4945d329ea2f175
        )

    [name] => Array
        (
            [givenName] => Greg
            [familyName] => Rickaby
            [formatted] => Gregory James Rickaby
        )

    [displayName] => Greg
    [aboutMe] => Design Lead @WebDevStudios. Audio Engineer @WiregrassChurch. Amateur pizza chef and lover of a good brew.
    [currentLocation] => Enterprise, Alabama
    [accounts] => Array
        (
            [0] => Array
                (
                    [domain] => facebook.com
                    [display] => gregrickaby
                    [url] => http://www.facebook.com/gregrickaby
                    [username] => gregrickaby
                    [verified] => true
                    [shortname] => facebook
                )

            [1] => Array
                (
                    [domain] => profiles.google.com
                    [display] => profiles.google.com
                    [url] => http://profiles.google.com/115960795578445596136
                    [userid] => 115960795578445596136
                    [verified] => true
                    [shortname] => google
                )

            [2] => Array
                (
                    [domain] => twitter.com
                    [display] => @GregRickaby
                    [url] => http://twitter.com/GregRickaby
                    [username] => GregRickaby
                    [verified] => true
                    [shortname] => twitter
                )

            [3] => Array
                (
                    [domain] => youtube.com
                    [display] => gregrickaby
                    [url] => http://www.youtube.com/user/gregrickaby
                    [username] => gregrickaby
                    [verified] => true
                    [shortname] => youtube
                )

        )

    [urls] => Array
        (
            [0] => Array
                (
                    [value] => http://gregrickaby.com
                    [title] => My Blog
                )

        )

)