Use Genesis Doctitle and Meta Description with Jetpack's Open Graph tags on entry pages.

jetpack-open-graph-tags.php

<?php
add_filter( 'jetpack_open_graph_tags', 'nr_jetpack_open_graph_tags_filter' );
/**
 * Filter open graph tags to use Genesis doctitle and meta description instead.
 * 
 * @author Nathan Rice
 * @link https://gist.github.com/4683845
 */
function nr_jetpack_open_graph_tags_filter( $tags ) {

	/** Do nothing if not on an entry page */
	if ( ! is_singular() )
		return $tags;

	/** Pull from custom fields */
	$title       = genesis_get_custom_field( '_genesis_title' );
	$description = genesis_get_custom_field( '_genesis_description' );

	/** Maybe set new values */
	$tags['og:title']       = $title ? $title : $tags['og:title'];
	$tags['og:description'] = $description ? $description : $tags['og:description'];

	return $tags;

}