Block height - The block variety and duration of your blockchain (in blocks) on creation of the current block Nonce - The transaction range for the from address (bear in mind this begins at 0 so a nonce of a hundred would essentially be the a hundred and first transaction https://socialwebnotes.com/story5818954/blockchain-explorer-usdt-trc20-fundamentals-explained-https-www-multichain-com-qa-user-knotdrop3