Block top - The block range and duration in the blockchain (in blocks) on generation of the current block Nonce - The transaction range for that from address (Keep in mind this begins at 0 so a nonce of 100 would in fact be the a hundred and first transaction https://funbookmarking.com/story20529771/the-greatest-guide-to-blockchain-explorer-unconfirmed-transaction-https-hedgedoc-digillab-uni-augsburg-de-mshxmk-praykwj94jou11g