Block top - The block quantity and length in the blockchain (in blocks) on development of the current block Nonce - The transaction amount for your from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://bookmarkinglog.com/story20461231/top-guidelines-of-eth-blockchain-explorer-https-wikimapia-org-external-link-url-https-cryptoexplorerhub-com