Block height - The block amount and size 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 100 would essentially be the 101st transaction submitted by this account) https://dailyuploads.net/kv21pr0676da/Delving_into_the_Invisible_The_Importance_of_Blockchain_Explorers_in_the_Crypto_Worldznmrd.pdf