A prototypical implementation of the SWORD V3 (release candidate) has been developed for the Invenio digital library framework from CERN, with support from NII, Japan. The Python code can be found in GitHub.
The code demonstrates that the SWORD V3 standard can be realised as functional, usable code (unlike some other “standards” which will remain nameless!). If you are interested in developing SWORD V3 support for your preferred programming language/platform, please let us know at sword@cottagelabs.com.