About: http://webisa.webdatacommons.org/443023272

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	I am guessing that they do not do a dynamic SQL query to get the list of posts each and every time but instead regenerate the list on some sort of schedule and so you have lag time like this.
http://www.w3.org/ns/prov#wasQuotedFrom	codingforums.com