Block top - The block number and length from the blockchain (in blocks) on development of the present block Nonce - The transaction range with the from address (bear in mind this starts at 0 so a nonce of 100 would in fact be the a hundred and first transaction https://thegreatbookmark.com/story20271099/the-best-side-of-explorer-blockchain-usdt-https-files-fm-f-e6nkandt95