diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..8d24c90
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+node
+client
+node.key
+chain.db
diff --git a/Makefile b/Makefile
index fe3d7fd..521df2a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,5 @@
-.PHONY: default build node client
+.PHONY: default build
 default: build
 build: node.go client.go serve.go
 	go build -o node node.go serve.go values.go
 	go build -o client client.go values.go
-node: node
-	./node
-client: client
-	./client
diff --git a/README.md b/README.md
index 5df97fa..052e873 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,13 @@
 # Blockchain
 Blockchain example. Template version.
+
+### Compile:
+```
+$ make
+```
+
+### Run node and client:
+```
+$ ./node -serve::8080 -newuser:node.key -newchain:chain.db -loadaddr:addr.json
+$ ./client -loaduser:node.key -loadaddr:addr.json
+```
diff --git a/examples/exmp_bc.go b/examples/exmp_bc.go
deleted file mode 100644
index 4695cb9..0000000
--- a/examples/exmp_bc.go
+++ /dev/null
@@ -1,42 +0,0 @@
-package main
-
-import (
-	"os"
-	bc "./blockchain" 
-)
-
-const (
-	BLOCKCHAIN_DB = "blockchain.db"
-)
-
-const (
-	purse1 = "MIIBPAIBAAJBAO+M9NcRJAoZucR2PoenzfTN3bpfpJuuq4bXwbzabAh+XhmY4I5LfNN016SNhjzHqp8y6uD/pdHmp6tVcXZ5Gk0CAwEAAQJBAJdiNLhVFLltWIBXWVzRJs616pGFL7lSwQMOBlkaj3stZ7koGsIcT3PaQRMf23FKq1gUzMPyey0njP4+WJ7ZTuECIQD5k7Nn8HFYAHjnadoJFTzxHzbWKEpLcULNmtFoGGL65wIhAPW3MtXdWdy5zcWFad4Rf8SCmsip4NMWAQBaIBsvyi6rAiEA9e3AVISO+7uDZ+1bZ6Xg5mzuuTr8crjJrhaHkL6vEjMCIAllSfJXlnoUOMQWx+eP77zJ6bVGmaw4qS0kRRoFB8wlAiEA8kYB4ODHHgP/4kn74gVOqDWKGOZZk2uxNTWzgQnF4f0="
-	purse2 = "MIIBPAIBAAJBAOJhasuqmGs/YSTkQOsrXmiFLvdqwRVTUJCJ3LG64pietxsAZKiGs57uGHjs4nDTmMiHkeo6OxoLBlUJvGB4RV8CAwEAAQJAD72wXFsPYB23FoackP2iAeiI3IFaza3OY06CvwT8rpnxHcinpeAfxeanEraHsWNpPmzqhsx066Wuup3idJQxkQIhAP96uD/G+taZ1owsDid+aCzNjSDNFzxLqCibygv3Ghm5AiEA4teEV4XvF5yFqDMpwqXYFuGFXvwMmKuFuyhjo3b7g9cCIQCHMvByf+Ca1MqfX2kWKWUD4LuA0kgrlnYlF1yzPE9JsQIhAJNJroOJ0lG5bstk1ROuzV0l94xSCffDPyTjt7Z21h6nAiEA5atlLYR1LaId1rz1wJFMi5O2iMFJjLC1g6USqO0s5ZA="
-)
-
-func main() {
-	user1 := bc.LoadUser(purse1)
-	user2 := bc.LoadUser(purse2)
-
-	err := bc.NewChain(BLOCKCHAIN_DB, user1.Address())
-	if err != nil {
-		panic(err)
-	}
-	chain := bc.LoadChain(BLOCKCHAIN_DB)
-
-	for i := 0; i < 3; i++ {
-		block := bc.NewBlock(user2.Address(), chain.LastHash())
-		block.AddTransaction(chain, block.NewTransaction(user1, "aaa", 11))
-		block.AddTransaction(chain, block.NewTransaction(user1, "bbb", 11))
-		chain.PushBlock(user2, block)
-	}
-
-	chain.PrintChain()
-}
-
-func fileIsExist(filename string) bool {
-    if _, err := os.Stat(filename); os.IsNotExist(err) {
-        return false
-    }
-    return true
-}
diff --git a/examples/exmp_net.go b/examples/exmp_net.go
deleted file mode 100644
index a0cf755..0000000
--- a/examples/exmp_net.go
+++ /dev/null
@@ -1,32 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"net"
-	"strings"
-	"./network" 
-)
-
-const (
-	TITLE_OPTION = "[TITLE-MESSAGE]"
-	SERVER_ADDR  = ":8080"
-)
-
-func main() {
-	network.Listen(SERVER_ADDR, handleFunc)
-	for i := 0; i < 3; i++ {
-		pack := network.Send(SERVER_ADDR, &network.Package{
-			Option: TITLE_OPTION,
-			Data: "hello, world!",
-		})
-		fmt.Println(network.Serialize(pack))
-	}
-}
-
-func handleFunc(conn net.Conn, pack *network.Package) {
-	network.HandleAction(TITLE_OPTION, conn, pack, handleGet)
-}
-
-func handleGet(pack *network.Package) (set string) {
-	return strings.ToUpper(pack.Data)
-}