Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction range with the from address (Remember this starts off at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) Contract https://social40.com/story6237127/blockchain-explorer-search-an-overview-https-hedgedoc-digillab-uni-augsburg-de-mshxmk-praykwj94jou11g