Transaction not yet indexed

668covoyfLTqLAvoE8G6uqSHYJSaTpx3wypRv7eDyRu3MHs3DhDKMLhD8tBb5XZpCYKSdKccEHywLNmP9a4qprMV

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