Transaction not yet indexed

53u8Ndf7otpfMNAbBJjFBCbL4v62tx4CSqnA3V5a18oApDoCVwNWmgyLmpxL2YWBH6YPTRBQjcuYJUAEDKp9xSxK

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