Block top - The block selection and duration of the blockchain (in blocks) on creation of the present block Nonce - The transaction number for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://thebookpage.com/story5697355/top-blockchain-explorer-confirmed-transactions-secrets-https-skitterphoto-com-photographers-1387379-jimenez-deleuran