Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction range with the from address (bear in mind this commences at 0 so a nonce of 100 would essentially be the 101st transaction submitted by this account) https://socialeweb.com/story5670926/detailed-notes-on-blockchain-explorer-unconfirmed-transaction-https-www-footballzaa-com-out-php-url-https-cryptoexplorerhub-com