Transaction not yet indexed

668y4cckRiLZXvd6dCJvBr8sK6cRPnvB7KK7YJZQQbc6Vxoxe18UsoJWukredZTiNTfKr8zpUHDd1hWx1RFUSABg

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