Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction range with the from address (Remember this starts off at 0 so a nonce of a hundred would really be the 101st transaction submitted by this account) https://sparktv.net/post/810410_https-cryptoexplorerhub-com-in-the-ever-evolving-world-of-copyright-compreh.html