Block top - The block range and duration of your blockchain (in blocks) on generation of the present block Nonce - The transaction number for your from address (bear in mind this begins at 0 so a nonce of 100 would really be the a hundred and first transaction submitted https://directmysocial.com/story5182730/blockchain-explorer-fundamentals-explained-https-wikimapia-org-external-link-url-https-cryptoexplorerhub-com