What is the token ID and contract address?
Could you please explain what the token ID represents in the realm of cryptocurrencies? Additionally, could you provide an overview of what a contract address signifies and how it functions within the blockchain ecosystem? It would be helpful if you could also elaborate on the significance of these two elements in relation to transactions and smart contracts. Would it be possible for you to give an example or two to further clarify these concepts? Thank you for your assistance in clarifying these fundamental aspects of the cryptocurrency world.