Block top - The block variety and size from the blockchain (in blocks) on development of the current block Nonce - The transaction quantity 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://bookmark-media.com/story20795550/the-fact-about-explorer-blockchain-base-that-no-one-is-suggesting-https-notes-io-ww2s8