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 starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://thebookmarkplaza.com/story20136799/the-fact-about-explorer-blockchain-base-that-no-one-is-suggesting-https-www-webwiki-de-cryptoexplorerhub-com