Terms of Use

As part of efforts to encourage adoption of provenance technology, we provide the provenance services on this website freely to the community. In order to gain an understanding of provenance in the wild and to improve the services, we collect statistics and digest about the provenance data submitted to our services by the users, referred to as Collected Data.

What do we store

With this service, you can [validate/analyse] PROV representations, translate them into other representations, or [normalize/process] them. This service does not store the PROV representations that you submit, but it collects and stores the following information:

  • Web access log, including user preferences when choosing a specific PROV representation or narrative.
  • Metrics of provenance data posted to the services (e.g. size, statistics and topology measures) inspired by our Provenance Network Analytics paper.
  • Validation reports that describe places where provenance is invalid, incomplete or incorrect.
  • Digest of provenance data posted to the services (e.g. signature of provenance and timestamps).
  • Anonymous summaries of provenance data, inspired by our GAM'15 paper.

Furthermore, we note that:

  • Some provenance data will be cached temporarily for the duration of a user session to improve the responsiveness and usability of the services
  • In addition, further data is collected indirectly by third-party "web analytics" services such as Google Analytics, Sentry, and User Voice.


By pressing the Validate/Analyse/Translate/Transform] button, you agree with the terms and conditions of this service (for full details, see the Information Sheet of ethics application LRS-20/21-20942). Specifically, you agree with Collected Data being stored and used for research purpose by King's College; you also agree that no guarantees are provided as to the correctness of the validation/analysis results. The information we capture is anonymous and we will not seek to try and identify users from IP addresses. Given this, we provide no mechanism by which Collected Data can be erased.