Block top - The block quantity and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (bear in mind this begins at 0 so a nonce of one hundred would essentially be the one hundred and first transaction https://digibookmarks.com/story20493072/explorer-blockchain-base-an-overview-https-www-webwiki-it-cryptoexplorerhub-com