Block top - The block number and length from the blockchain (in blocks) on development of the present block Nonce - The transaction selection with the 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://monobookmarks.com/story20734937/not-known-factual-statements-about-blockchain-explorer-tool-https-peatix-com-user-27717689