Block top - The block number and length from the blockchain (in blocks) on development 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://eternalbookmarks.com/story20497185/blockchain-explorer-usdt-trc20-fundamentals-explained-https-skitterphoto-com-photographers-1387379-jimenez-deleuran