added the block's structure

main.go

@@ -8,10 +8,15 @@ import (
 	"os"
 	"time"
 
+	"github.com/KulwinderSingh07/POW-Blockchain/model"
 	"github.com/gorilla/mux"
 	"github.com/joho/godotenv"
 )
 
+var NewBlock model.Block
+
+var Blockchain []model.Block
+
 func main() {
 	err := godotenv.Load()
 	if err != nil {

model/block.go

@@ -0,0 +1,11 @@
+package model
+
+type Block struct {
+	Index      int
+	Timestamp  string
+	Data       int
+	Hash       string
+	PrevHash   string
+	Difficulty int
+	Nonce      string
+}