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 actually be the 101st transaction submitted by this account) https://pageoftoday.com/story5695817/what-does-eth-blockchain-explorer-mean-https-graph-org-unveiling-transparency-how-blockchain-explorers-function-09-04