Block peak - The block range and duration of your blockchain (in blocks) on generation of the present block Nonce - The transaction number for your from address (bear in mind this begins at 0 so a nonce of 100 would truly be the 101st transaction submitted by this account) https://bookmarkspiral.com/story20424421/a-review-of-blockchain-explorer-xrp-https-articlescad-com-the-remarkable-adventurers-in-the-cyber-frontier-grasping-distributed-ledger-instruments-325096-html