Block top - The block selection and duration of your blockchain (in blocks) on creation of the current block Nonce - The transaction quantity for your from address (bear in mind this begins at 0 so a nonce of 100 would truly be the 101st transaction submitted by this account) https://single-bookmark.com/story20292300/the-fact-about-explorer-blockchain-base-that-no-one-is-suggesting-https-www-pdc-edu-url-https-cryptoexplorerhub-com