Block height - The block selection and size in the blockchain (in blocks) on generation of the current block Nonce - The transaction selection for the from address (Remember this begins at 0 so a nonce of 100 would essentially be the a hundred and first transaction submitted by this https://listfav.com/story22332941/explorer-blockchain-tron-an-overview-https-www-instapaper-com-p-16864836