Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction selection for that from address (Remember this starts off at 0 so a nonce of a hundred would basically be the one hundred and first transaction submitted https://bookmarkingace.com/story20311345/the-blockchain-explorer-usdt-trc20-diaries-https-notes-io-ww2s8