Block Explorer Url copyright https://www.instapaper.com/p/16801288 Solana: Typically some seconds to some moment. Even so, in unusual conditions, Solana blockchain transactions can stay unconfirmed for several hours or perhaps times These transactions stay in the mempool (memory pool) until a miner or validator selects them and involves them inside a block. https://infopagex.com/story6127826/blockchain-explorer-tron-top-blockchain-explorer-solana-secrets-https-cutt-ly-3rj9ygbc