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://funny-lists.com/story21526793/top-guidelines-of-eth-blockchain-explorer-https-dailyuploads-net-kv21pr0676da-delving-into-the-invisible-the-importance-of-blockchain-explorers-in-the-copyright-worldznmrd-pdf