Transaction not yet indexed

666NsUEJkdbYNiTUkvpFHmmZQJSxTTaG8AuWsYpp2fAsXE3oCRU4xouaN7CytmuayCVsKdbyhufFo7HNp21q1f5A

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