Sandra Fauconnier, 10/06/2016 21:12:
Recently his team has developed an initiative called ResourceSync http://www.openarchives.org/rs/toc, that seems to be addressing exactly this - keeping distributed databases on the web mutually up to date. It’s the closest thing I’ve ever seen that seems to address what we (and the entire interlinked web) would need in this area. I might have missed other initiatives, but this one gave me a big AHA moment!
That's more like a backup/mirroring system https://www.openarchives.org/rs/1.0/resourcesync#MotivExamples (similar to LOCKSS etc.), while here we're talking of data reconciliation.
Avoiding data loss, linkrot and single points of failure for the web is indeed something that interests Wikimedia; I believe the most advanced proposal in this area is http://brewster.kahle.org/2015/08/11/locking-the-web-open-a-call-for-a-distr...
Nemo