Block top - The block range and duration of your blockchain (in blocks) on generation of the present block Nonce - The transaction number for your from address (bear in mind this begins at 0 so a nonce of 100 would truly be the 101st transaction submitted by this account) https://mixbookmark.com/story5966926/5-simple-techniques-for-explorer-blockchain-base-https-atavi-com-share-xftxdaz1pgsb4