Block top - The block quantity and length in the blockchain (in blocks) on development of the present block Nonce - The transaction range with the from address (bear in mind this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) https://bookmarkzap.com/story20300808/5-simple-techniques-for-explorer-blockchain-base-https-wikimapia-org-external-link-url-https-cryptoexplorerhub-com