Transaction not yet indexed

668QWpMbdUEX2vtP7qGuTBDHm3e359cRqf6xYxNLMCaheQLyE5y35SSrbCxvRGmNS2Jf1vaPigYqReq8HHdDje9q

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