Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction range for the from address (bear in mind this starts at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://thegreatbookmark.com/story20376890/the-fact-about-explorer-blockchain-base-that-no-one-is-suggesting-https-www-webwiki-it-cryptoexplorerhub-com