Transaction not yet indexed

556JxmjzSh1SUxLX96PEaATK9RnufSG7AWsqG7NLPH2be9WwpfCJwsRqL1w5Q1gnf4C6FLEm5kpV5kCq2fws1hxE

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