Transaction not yet indexed

668Aj6f3GbUdkZjZs1oK2JRxASg8JcNnstQXYCFtgM4F6z6YwFAMx1j6mKixntQDSS21mAfQFKJSzZh9vCSt5uJk

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