Block top - The block number 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 truly be the a hundred and first transaction https://bookmarkingfeed.com/story20150853/5-simple-techniques-for-explorer-blockchain-base-https-500px-com-p-barrkijrooney