Block top - The block variety and duration of your blockchain (in blocks) on creation of the current block Nonce - The transaction range for that from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://crossbookmark.com/story20709020/new-step-by-step-map-for-blockchain-explorer-unconfirmed-transaction-https-pad-karuka-tech-vc6p2vmyr6a9ij1xxkanwg