cpacia

```lisp
;; This is an example of an auction contract. Users can place new bids by calling
;; the bid method with the appropriate inputs and outputs:
;;
;; Bid tx-format:
;; --------------
;; Input-0: This contract
;; Input-1: Bid input
;; 
;; Output-0: This contract

cpacia

```lisp
;; This is an example of a vault script. The general concept is to have two keys — a
;; hot key and a cold key. The cold key is allowed to spend from the script at any
;; time. If a spend is initiated using the hot key, a timer is started. The hot key
;; is allowed to spend the funds after the timer expires. At any time before the timer
;; expires the cold key can spend the funds.

;; The script allows the following list of custom parameters:
;;(<hot-key (num)> <cold-key (num)> <fee (num)> <recovery-window (num)> <required-precision (num)>)
;;

cpacia

package main

import (
	"errors"
	"fmt"
	"log"
	"regexp"
	"strings"
)

cpacia

package main

import "fmt"

func main() {
        fmt.Println("Hello World!")
}

cpacia

Go

There are three main parts to the Go installation:

• The go binary:

  This is the main executable file that you will use to compile programs.

• The standard library:

cpacia

TERMINAL BASICS

In this tutorial we are going to cover some basics of using the terminal. Hopefully you will be using either linux or mac as the terminal syntax will be the same as I cover here. On windows you can do the same things but the syntax is different. You'll need google how to do these things on windows as I don't know them off the top of my head.

Browsing Files

When you open the terminal you will see a comand prompt. Mine looks like this:

chris@chris-Yoga:

cpacia

package main

import (
	"crypto/rand"
	"fmt"
	"github.com/gcash/bchd/bchec"
	"log"
)

func main() {

cpacia

package main

import (
	  "encoding/binary"
	  "fmt"
	  "github.com/gcash/bchd/bchrpc/pb"
	  "github.com/gcash/bchd/txscript"
	  "golang.org/x/net/context"
	  "google.golang.org/grpc"
	  "google.golang.org/grpc/credentials"

cpacia

var prevRedeemScript = readFromStack()

var preimage = readFromStack()
validatePreimage(preimage)

var outputTransfers = readFromStack()

var siganture = readFromStack()

cpacia

You should start bchd with a least the following options: bchd -u yourUsername -P yourPassword --rpclisten=0.0.0.0 --externalip=your_ip_here

Alternatively you can put these options in the config file found at ~/.bchd/bchd.conf so you don't need to enter them at start.

rpcuser=your_username
rpcpass=your_loooooonnng_password
rpclisten=0.0.0.0
externalip=your_ip_here