// Add the first transaction of a block. This transaction makes the // payout to the servers, so it has no inputs. This transaction must // be deterministic so that all servers will know and expect its output. func (b *FBlock) AddCoinbase(trans fct.ITransaction) error { b.BodyMR = nil if len(b.Transactions) != 0 { return fmt.Errorf("The coinbase transaction must be the first transaction") } if len(trans.GetInputs()) != 0 { return fmt.Errorf("The coinbase transaction cannot have any inputs") } if len(trans.GetECOutputs()) != 0 { return fmt.Errorf("The coinbase transaction cannot buy Entry Credits") } if len(trans.GetRCDs()) != 0 { return fmt.Errorf("The coinbase transaction cannot have anyRCD blocks") } if len(trans.GetSignatureBlocks()) != 0 { return fmt.Errorf("The coinbase transaction is not signed") } // TODO Add check here for the proper payouts. b.Transactions = append(b.Transactions, trans) return nil }