Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction range with the 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://toplistar.com/story22530524/the-fact-about-explorer-blockchain-base-that-no-one-is-suggesting-https-coveruncle7-werite-net-blockchain-explorers-the-key-to-comprehending-copyright-transactions