The U.S. and Iran have remotely signed a memorandum of understanding (MOU), which has entered into force, opening a 60-day negotiation window.
Source：
content-static.cctvnews.cctv.com
According to CCTV News, on the 17th local time in the United States, the U.S. and Iran have signed a Memorandum of Understanding (MoU) remotely. A U.S. official stated that the document was personally signed by Trump and has now entered into force.