Block top - The block number and length on the blockchain (in blocks) on generation of the present block Nonce - The transaction selection for your from address (Remember this starts off at 0 so a nonce of 100 would truly be the one hundred and first transaction submitted by https://topsocialplan.com/story6135496/a-review-of-blockchain-explorer-xrp-http-ezproxy-cityu-edu-hk-login-url-https-cryptoexplorerhub-com