Block top - The block number and duration of your blockchain (in blocks) on creation of the present block Nonce - The transaction selection to the from address (Remember this begins at 0 so a nonce of a hundred would truly be the 101st transaction submitted by this account) Contract https://free-bookmarking.com/story20373372/blockchain-explorer-search-an-overview-https-www-webwiki-nl-cryptoexplorerhub-com