Jupiter Blockchain Explorer https://k12.instructure.com/eportfolios/1098588/entries/3707785 Solana: Commonly a handful of seconds to a minute. Nevertheless, in uncommon instances, Solana blockchain transactions can stay unconfirmed for hours and even days These transactions remain in the mempool (memory pool) until finally a miner or validator selects them and features them inside a b... https://expressbookmark.com/story20180691/near-blockchain-explorer-new-step-by-step-map-for-blockchain-explorer-api-https-cutt-ly-3rj9ygbc