You could create an ED25519 keypair, then with each post, produce a sha256 hash of the post, create a signature of the hash using your private signing key, then include the signature with the post. Anyone could easily verify the signature with the verify key. You could add the verify key to a personal site or something.
You could create an ED25519 keypair, then with each post, produce a sha256 hash of the post, create a signature of the hash using your private signing key, then include the signature with the post. Anyone could easily verify the signature with the verify key. You could add the verify key to a personal site or something.