Block top - The block number and size in the blockchain (in blocks) on generation of the current block Nonce - The transaction number with the from address (bear in mind this starts at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://webcastlist.com/story22005763/not-known-details-about-explorer-blockchain-ton-https-posteezy-com-past-these-blocks-discovering-realm-copyright-explorers