Transaction not yet indexed

53sfex5hgLb8tnwrLBueQNkLRzrtmeckiffHxC2k7mZCHmxPc9VFxcTbZ6VfdUeT7upLdD2Arc9wMDU5pGyV4Tz1

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