The *structurally valid* chain with the most PoW. Hard forks change the meaning of "structurally valid".
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
The *structurally valid* chain with the most PoW. Hard forks change the meaning of "structurally valid".