Transaction not yet indexed

668PyA73Fv9TByUWmjhK69uFux1q6mEyj5nr6sAVkVbkmC1FfpXedNBWSgH8mWf7MCjYqtt9d3GyoNCWsPSeLNS3

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