Block top - The block selection and size on the blockchain (in blocks) on generation of the current block Nonce - The transaction range for that from address (bear in mind this starts at 0 so a nonce of one hundred would essentially be the one hundred and first transaction https://natural-bookmark.com/story20496564/new-step-by-step-map-for-blockchain-explorer-unconfirmed-transaction-https-urlscan-io-result-0199164a-7dbe-7737-944c-199699cc315c