Transaction not yet indexed

666SB3xFbrBUUHub1incHjZqwSKttUE9cxkvUXqwMdGWLw2dXVrZHDa7u5QRypZ9UTU9BcoWiM1jpdVD8Zz5FQKZ

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