Block top - The block selection and length with the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for the from address (Remember this starts at 0 so a nonce of one hundred would essentially be the one hundred and first transaction submitted by https://growthbookmarks.com/story20184617/a-review-of-blockchain-explorer-xrp-https-kearns-horn-hubstack-net-monitoring-transfers-how-distributed-ledger-analyzers-work