Transaction not yet indexed

668vxSbpmhG3CVWzipB5S3aYk8xN8MbaU2drifHQb5BFvhkA66pSHGLHjJQB7LTZb3TdvQqC7YsAWcg3An7q7yb6

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