BEIJING, July 29, 2024 /PRNewswire/ -- WiMi Hologram Cloud Inc. (NASDAQ: WIMI) ("WiMi" or the "Company"), a leading global Hologram Augmented Reality ("AR") Technology provider, today announced a blockchain-based privacy security protection framework will provide an innovative solution for secure data sharing and collaboration in smart cities, which not only integrates the advantages of decentralization, transparency, and immutability of blockchain technology, but also deeply integrates a variety of advance ...