Block top - The block number and length from the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) https://greatbookmarking.com/story20248865/the-smart-trick-of-explorer-blockchain-ethereum-that-nobody-is-discussing-https-peatix-com-user-27717689