Blockchain Explorer Xrp https://www.instapaper.com/p/16801288 Solana: Ordinarily a handful of seconds to a minute. Nevertheless, in uncommon instances, Solana blockchain transactions can stay unconfirmed for hours or even days These transactions remain in the mempool (memory pool) till a miner or validator selects them and incorporates them inside of a block. https://bookmarking1.com/story20468132/blockchain-explorer-litecoin-5-simple-techniques-for-blockchain-explorer-xrp-https-cutt-ly-3rj9ygbc