About: http://webisa.webdatacommons.org/201528242

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	As you see you will have to automate the monitoring, i.e. do something like a keepalive-based scripting that goes around and makes sure that everything is alive.
http://www.w3.org/ns/prov#wasQuotedFrom	serverfault.com