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