How post verification works

The Frontier reads your public post from X and checks it carries your claim code.

When you submit a post link, The Frontier fetches the post from X. It checks that the text contains your claim code and mentions $FRONTIER. When X provides a timestamp, it also checks the post was made after the claim started.

Protected accounts can’t be read, so claim posts must be public. Deleting the post afterwards doesn’t undo a claim, but a post can only ever be used once.