Block top - The block selection and size of your blockchain (in blocks) on generation of the present block Nonce - The transaction number for the from address (bear in mind this starts off at 0 so a nonce of 100 would essentially be the a hundred and first transaction https://socialdosa.com/story10344398/not-known-facts-about-blockchain-explorer-usdt-https-notes-io-ww2s8