Block Explorer Doge https://numberfields.asu.edu/NumberFields/show_user.php?userid=6213316 Solana: Ordinarily a couple of seconds to the minute. Having said that, in unusual cases, Solana blockchain transactions can continue to be unconfirmed for several hours and even times These transactions remain in the mempool (memory pool) right up until a miner or validator selects them https://output.jsbin.com/kefuguxaze/