Transaction not yet indexed

666CSRtYsAQJ6nqNNcnusGgpJcf8BVYhYgCvWmFrRkrDAkTAmsfvZvZ5yGfeYdNP8dMV1ewPx8uRMH9TyWMkCFbv

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.