Block top - The block selection and length in the blockchain (in blocks) on development of the present block Nonce - The transaction number for your from address (Keep in mind this commences at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) https://bookmarkjourney.com/story20703621/not-known-facts-about-blockchain-explorer-unconfirmed-transaction-https-vuf-minagricultura-gov-co-lists-informacin-20servicios-20web-dispform-aspx-id-11784754