What you have here is a TTArtisan lens that has a Canon EF mount. The filter size is 52 mm, good to know if you like to use filters.
From Amazon
TArtisan 35mm F0.95 APS-C Large Aperture Manual Focus Mirrorless Cameras Lens for Canon RF Mount Compatible Like R7 APS-C Model R10 EOS R RP R5 R6
WEX Photo Video
TTArtisan 35mm f0.95 Lens for Canon RF - Black & Silver