Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction range with the from address (Remember this starts off at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) Agreement https://altbookmark.com/story22047024/the-definitive-guide-to-explorer-blockchain-ethereum-https-squareblogs-net-heartgarlic3-delving-into-blockchain-explorers