Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that from address (Remember this starts off at 0 so a nonce of a hundred would basically be the 101st transaction submitted by this account) https://bookmark-share.com/story20646134/top-guidelines-of-explorer-blockchain-solana-https-www-bitsdujour-com-profiles-iptrcw