Block top - The block selection and duration from the blockchain (in blocks) on creation of the current block Nonce - The transaction range with the from address (Remember this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) Agreement development https://iwanttobookmark.com/story20651055/5-easy-facts-about-blockchain-explorer-api-described-https-files-fm-f-e6nkandt95