Block top - The block selection and length of the blockchain (in blocks) on creation of the current block Nonce - The transaction number for your from address (bear in mind this begins at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://bookmarkingbay.com/story20330647/the-smart-trick-of-explorer-blockchain-ethereum-that-nobody-is-discussing-https-doodleordie-com-profile-brokerdrop7