Usdc Blockchain Explorer https://www.youtube.com/redirect?q=https://cryptoexplorerhub.com Solana: Generally some seconds to a minute. On the other hand, in rare circumstances, Solana blockchain transactions can continue being unconfirmed for several hours or even days These transactions stay in the mempool (memory pool) right until a miner or validator selects them and contains them https://bookmarkworm.com/story20620396/blockchain-explorer-btc-top-blockchain-explorer-solana-secrets-https-cutt-ly-3rj9ygbc