Block height - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://wavesocialmedia.com/story5873256/5-easy-facts-about-blockchain-explorer-api-described-https-myspace-com-deletescreen7