Block peak - The block variety and size on the blockchain (in blocks) on development of the present block Nonce - The transaction selection with 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://socialwebconsult.com/story5817542/a-review-of-blockchain-explorer-xrp-https-mathiasen-curry-2-federatedjournals-com-diving-deep-blockchain-explorers