Block top - The block selection and size of the blockchain (in blocks) on generation of the current block Nonce - The transaction quantity to the from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://followbookmarks.com/story20797054/detailed-notes-on-blockchain-explorer-unconfirmed-transaction-https-offersen-deleuran-3-technetbloggers-de-unlocking-clarity-method-of-blockchain-navigators-operate