Block top - The block selection and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (bear in mind this begins at 0 so a nonce of one hundred would essentially be the one hundred and first transaction https://socialbraintech.com/story5569379/explorer-blockchain-tron-an-overview-https-md-kif-rocks-qxb6ylbntwcjnvrpqnzeqw