Block top - The block selection and length of the blockchain (in blocks) on creation of the current block Nonce - The transaction range for that from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://socialbuzzfeed.com/story6357944/facts-about-blockchain-explorer-confirmed-transactions-revealed-https-hedgedoc-digillab-uni-augsburg-de-mshxmk-praykwj94jou11g