Block top - The block selection and length of the blockchain (in blocks) on creation of the current block Nonce - The transaction number for the from address (bear in mind this starts at 0 so a nonce of 100 would truly be the 101st transaction submitted by this account) https://bookmark-share.com/story20314424/blockchain-explorer-fundamentals-explained-https-www-colegioenlinea-edu-co-profile-mckinneyhxdserup65445-profile