Explore copyright https://500px.com/p/enevoldsenepbhenderson Solana: Ordinarily a few seconds to some minute. Having said that, in scarce instances, Solana blockchain transactions can stay unconfirmed for hours and even times These transactions remain in the mempool (memory pool) until a miner or validator selects them and involves them inside of a block. https://bookmark-search.com/story20480732/explorer-blockchain-solana-everything-about-blockchain-explorer-unconfirmed-transaction-https-cutt-ly-3rj9ygbc