About: http://webisa.webdatacommons.org/8946054

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	True, latency is an issue, but you also need backup, redundency and logging as well-which can far exceed the storage of an operational data store, not to mention retention requirements.
http://www.w3.org/ns/prov#wasQuotedFrom	ritholtz.com