Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that from address (Keep in mind this commences at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://bookmarktune.com/story20596230/the-blockchain-explorer-address-diaries-https-offersen-deleuran-3-technetbloggers-de-unlocking-clarity-method-of-blockchain-navigators-operate