Transaction not yet indexed

668RtoRYq2XYSWSjzdUQctup87uhH6VrqY36WHPXLTQM8fSBunGr1VmZBXtvF9psR2hR3Jacj3WC4e7pYc8QFmtH

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