Block top - The block selection and length from the blockchain (in blocks) on development of the current block Nonce - The transaction range 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://social4geek.com/story6041591/the-best-side-of-explorer-blockchain-usdt-https-cuwip-ucsd-edu-members-georgeuncle0-activity-1839979