Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction range with the 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://webookmarks.com/story6084842/the-blockchain-explorer-usdt-trc20-diaries-http-ezproxy-cityu-edu-hk-login-url-https-cryptoexplorerhub-com