In this focus session, demos from three European central banks: Deutsche Bundesbank, Banca d'Italia, and Banque de France are displayed in the video. Video link:
https://www.youtube.com/watch?v=m5z3uoMH3Fw
Technical documents about each solution provided by all three central banks, including the architecture, the process description, and the message formats can be found in this page, in the Annexes section:
https://www.ecb.europa.eu/paym/intro/news/html/ecb.mipnews23...
What do you think about these three proposals?