About: http://webisa.webdatacommons.org/87041303

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	First, we cannot specify a KeyNumber of AT_EXCHANGE when using DSA. This should be fairly obvious, because DSA is a signature algorithm.
http://www.w3.org/ns/prov#wasQuotedFrom	codeproject.com