About: http://webisa.webdatacommons.org/313178301

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	Then you just fill it with string to hash, using update() method (you can also pass the string directly to the constructor), and later on use e.g. hexdigest() to extract the hash.
http://www.w3.org/ns/prov#wasQuotedFrom	kotowicz.net