Blockchain Explorer Mempool https://www.giveawayoftheday.com/forums/profile/1149930 Solana: Usually a couple of seconds to a minute. Nonetheless, in unusual circumstances, Solana blockchain transactions can stay unconfirmed for hours and even days These transactions remain in the mempool (memory pool) until eventually a miner or validator selects them and includes them inside a block. https://moodjhomedia.com/story3359172/tron-blockchain-explorer-new-step-by-step-map-for-explorer-blockchain-solana-https-cutt-ly-3rj9ygbc