Block top - The block amount and length of your blockchain (in blocks) on generation of the current block Nonce - The transaction range for the from address (Remember this begins at 0 so a nonce of a hundred would in fact be the 101st transaction submitted by this account) https://toplistar.com/story22268615/the-2-minute-rule-for-blockchain-explorer-solana-https-md-chaosdorf-de-xdhzafcotoa3ipvrxixxya