Block top - The block selection and length on the blockchain (in blocks) on generation of the current block Nonce - The transaction variety for that from address (bear in mind this starts at 0 so a nonce of 100 would in fact be the one hundred and first transaction https://210list.com/story21205396/not-known-factual-statements-about-blockchain-explorer-tool-https-www-udrpsearch-com-user-lampwhorl2