Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (bear in mind this begins at 0 so a nonce of one hundred would essentially be the one hundred and first transaction https://kbookmarking.com/story20517897/the-fact-about-explorer-blockchain-base-that-no-one-is-suggesting-https-www-webwiki-fr-cryptoexplorerhub-com