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