Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that from address (Remember this starts off at 0 so a nonce of a hundred would basically be the 101st transaction submitted by this account) https://pr7bookmark.com/story20478846/the-definitive-guide-to-explorer-blockchain-ethereum-https-notes-io-ww2s8