Block top - The block selection and length from 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 actually be the 101st transaction submitted by this account) https://mediasocially.com/story5151288/not-known-factual-statements-about-blockchain-explorer-tool-http-ezproxy-cityu-edu-hk-login-url-https-cryptoexplorerhub-com