{"type":"rich","version":"1.0","title":"semisol wrote","author_name":"semisol (npub122…cgrkj)","author_url":"https://yabu.me/npub12262qa4uhw7u8gdwlgmntqtv7aye8vdcmvszkqwgs0zchel6mz7s6cgrkj","provider_name":"njump","provider_url":"https://yabu.me","html":"Caution:\nSpark makes major tradeoffs in terms of transaction privacy. It is a proprietary protocol, ran by a single company, \n\nSolutions like Rizful, WoS, etc. are not much better either, but they at least do not have an open endpoint allowing anyone to trace wallet histories."}