Odaily News Lava founder Shehzan said that it is estimated that there are about 400 "second layer" solutions running on the Bitcoin blockchain. Shehzan pointed out on the "Gwart Show" on August 25 that the actual value of these roll-ups and alternative blockchains is questionable. Some believe that the number of such projects is only 80 to 85, while some estimate that there are more than 1,000. The estimates vary so much because anyone can "rollup" data and broadcast a tiny hash to any miner, which technically creates a "Bitcoin second layer." In fact, many are simple clones of Ethereum rollups, handling almost all activity on centralized servers outside the Bitcoin network and broadcasting periodic hashes of that state into Bitcoin blocks. (Protos)