Block top - The block number and length in the blockchain (in blocks) on development of the current block Nonce - The transaction range with the from address (bear in mind this starts at 0 so a nonce of 100 would really be the one hundred and first transaction submitted https://atozbookmark.com/story20088925/explorer-blockchain-base-an-overview-https-md-farafin-de-0k9kbddstjwuieqthhbjgg