proposal
In order to automate the maintenance of links to related archival collections and bibliographic resources on the SNAC identify page (ARK page), a sitemaps based linking protocol could be established.
A pilot member would create a sitemap.txt, sitemap.xml, or siteMapIndex.xml that would list all the URLs that should be processed by the co-operative. ARKs related to the URL in the sitemap will be identified in sitemap extension elements and in the content of the URLs.
By creating a link to SNAC on your HTML, and then submitting a sitemap for harvesting, then SNAC will automatically "link back" to your site. Sitemaps will be periodically reprocessed to maintain link accuracy.