Convexity Properties announced Tuesday it is using the Harbor platform for a tokenized REIT offering in The Hub at Columbia, an off-campus student housing high-rise near the University of South Carolina. The offering represents $20M of private equity in the 14-story, 500K SF facility. It has 260 apartment units and more than 800 beds, as well as 4K SF of street-level retail and 6K SF of leased commercial space.