Block top - The block selection and length of the blockchain (in blocks) on generation 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 actually be the 101st transaction submitted by this account) https://thebookmarkid.com/story20505014/5-simple-statements-about-blockchain-explorer-solana-explained-https-doodleordie-com-profile-brokerdrop7