Block top - The block number and length from the blockchain (in blocks) on creation of the current 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://expressbookmark.com/story20829996/explorer-blockchain-things-to-know-before-you-buy-https-hedgedoc-digillab-uni-augsburg-de-mshxmk-praykwj94jou11g