Block top - The block range and duration of your blockchain (in blocks) on generation of the present block Nonce - The transaction quantity 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://bookmarkilo.com/story20282301/5-tips-about-blockchain-explorer-you-can-use-today-https-clancy-olesen-4-mdwrite-net-opening-the-record-your-resource-to-blockchain-investigation