Transaction not yet indexed

666upfkgKc8fuKdjS491V2dg1QRsWy5KTxFpVqa7qkpJ1vdNztUXC6LjztmxNQfK4bwaqK8j5D28MtFxShmdwwD9

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