About: http://webisa.webdatacommons.org/129166680

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	It is noted in the docs, so it most certainly could not change -- at least any more than e.g. Microsoft could decide that starting tomorrow, (put your preferred method here) will be taking its arguments in a different order.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com