Transaction not yet indexed

668ErbvcAr7yWkUSdNSrMQ77zxnuonLWsrgaYdaDjDLvAXCSSsGHvgCC1DdF2WdNRei6qzHJkjvKxoH7wWSwd3Sp

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