Block Explorer In Blockchain Technology https://intensedebate.com/people/sheehan95henri Solana: Commonly some seconds to a minute. However, in rare cases, Solana blockchain transactions can stay unconfirmed for hours or perhaps days These transactions stay in the mempool (memory pool) until eventually a miner or validator selects them and includes them within a block. https://case.edu/cgi-bin/newsline.pl?URL=https://cryptoexplorerhub.com