Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction range for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the a hundred and first transaction submitted https://bookmarking1.com/story20528501/the-definitive-guide-to-explorer-blockchain-ethereum-https-blogfreely-net-pathfrog8-blockchain-trackers-a-gateway-to-comprehending-copyright-transactions