Transaction not yet indexed

668WdpVyVfXGMmcrdDf1JY8vPyNAVf7NUQ1t4EhYLMMWRCFvD1Df9CqLCwVbnWE1hT2ap81jGZFP2jwsWsU79hgP

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