How the spot Bitcoin ETF filings affected the crypto industry in June: Report Post author:MiamiCrypto Post published:July 7, 2023 Post category:report / Research / Zk-Rollup The competition among zk-Rollup-based scaling solutions is tightening while the security tokens market continues steadily. You Might Also Like Report: Meta and Instagram Are Exploring an ‘Early Stage’ NFT Feature January 20, 2022 Fortune debuts ‘Crypto 40’; Ethereum takes top honors for protocol category April 10, 2023 California named ‘most crypto ready’ US state September 18, 2021