Block top - The block selection and length from the blockchain (in blocks) on development of the current block Nonce - The transaction range for that from address (Remember this starts off at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) Not https://linkingbookmark.com/story20116388/detailed-notes-on-blockchain-explorer-unconfirmed-transaction-https-www-folkd-com-submit-cryptoexplorerhub-com