Transaction not yet indexed

668gDwtRB3DQMfNa32pieJr2MerLE8P16sXKAvLTZM31Gz6YyetcwwT4JnbQEFsMtLdDYHmK6ACYCHZkvb4peVx3

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