Block top - The block selection and duration of your blockchain (in blocks) on creation of the current block Nonce - The transaction number with the from address (bear in mind this starts at 0 so a nonce of a hundred would actually be the a hundred and first transaction https://bookmarkingalpha.com/story20417082/explorer-blockchain-tron-an-overview-https-offersen-deleuran-3-technetbloggers-de-unlocking-clarity-method-of-blockchain-navigators-operate