Qnt Blockchain Explorer https://500px.com/p/younguitibrahim Solana: Usually several seconds to some minute. Nevertheless, in uncommon instances, Solana blockchain transactions can remain unconfirmed for several hours or even times These transactions remain in the mempool (memory pool) until a miner or validator selects them and contains them in a very block. BTC https://bookmark-search.com/story20696432/blockchain-explorer-one-5-simple-techniques-for-blockchain-explorer-xrp-https-cutt-ly-3rj9ygbc