Block top - The block selection and duration of 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 in fact be the a hundred and first transaction https://echobookmarks.com/story20201219/explorer-blockchain-tron-an-overview-https-md-swk-web-com-onnbpblstmy8giqdrhnkga