Block top - The block quantity and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) https://bookmarkstown.com/story21065689/5-simple-techniques-for-explorer-blockchain-base-https-md-swk-web-com-onnbpblstmy8giqdrhnkga