Block height - The block selection and length from the blockchain (in blocks) on development of the present block Nonce - The transaction selection for your 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://ok-social.com/story6134151/new-step-by-step-map-for-blockchain-explorer-unconfirmed-transaction-https-pad-stuve-uni-ulm-de-qjwqtezvsfelat3ec1kc9q