Block top - The block selection and size of the blockchain (in blocks) on creation of the current block Nonce - The transaction number for that from address (Remember this starts off at 0 so a nonce of a hundred would really be the a hundred and first transaction submitted https://mylittlebookmark.com/story6308562/not-known-details-about-explorer-blockchain-ton-https-peatix-com-user-27717689