Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (bear in mind this begins at 0 so a nonce of 100 would in fact be the a hundred and first transaction https://thebookmarkfree.com/story20652811/what-does-blockchain-explorer-usdt-mean-https-independent-academia-edu-drewandreassen4