Block top - The block number and length from the blockchain (in blocks) on generation of the present block Nonce - The transaction number for the from address (bear in mind this begins at 0 so a nonce of 100 would essentially be the one hundred and first transaction submitted https://toplistar.com/story22579155/not-known-details-about-blockchain-explorer-ltc-https-mathiasen-curry-2-federatedjournals-com-diving-deep-blockchain-explorers