Tag: Signposting

• Locating provenance for a RESTful web service This blog post shows how RESTful web services can provide, and link to, provenance data for their exposed resources by using the PROV-AQ mechanism of HTTP Link headers. This is demonstrated by showing how to update a hello world REST service implemented with Java and JAX-RS 2.0 to provide these links. The PROV-AQ HTTP mechanism is easiest explained by an example: GET http://example.com/resource.html HTTP/1.1 Accept: text/html HTTP/1.1 200 OK Content-type: text/html Link: <http://example.