Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that from address (Remember this starts off at 0 so a nonce of a hundred would basically be the 101st transaction submitted by this account) https://isocialfans.com/story5943121/the-fact-about-explorer-blockchain-base-that-no-one-is-suggesting-https-notes-io-ww2s8