Block top - The block number and length from the blockchain (in blocks) on development 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 really be the 101st transaction submitted by this account) https://sociallawy.com/story11228628/blockchain-explorer-search-an-overview-https-pad-karuka-tech-vc6p2vmyr6a9ij1xxkanwg