Transaction not yet indexed

668vdBt36HD7fdPVEVgXiKxsJ9CuGoAdDep3LZfVCRub9hKLitFWkHbxPW8LV7vdsuKLRu3fYMB6hXjFvN8SxUz6

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