Block top - The block number and length from the blockchain (in blocks) on development of the present block Nonce - The transaction selection with the 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://digibookmarks.com/story20416361/not-known-details-about-explorer-blockchain-ton-https-pinshape-com-auth-users-auth-google