Block top - The block selection and length of the blockchain (in blocks) on generation of the current block Nonce - The transaction variety for that from address (Remember this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) Contract generation https://bookmarkshq.com/story22023333/the-blockchain-explorer-address-diaries-https-md-swk-web-com-onnbpblstmy8giqdrhnkga