diff --git a/models/models.go b/models/models.go
index b14a26e..0231677 100755
--- a/models/models.go
+++ b/models/models.go
@@ -121,18 +121,23 @@ type SmartContractExecutionInfo struct {
 }
 
 type Block struct {
-	Version      string     `json:"version"`
-	ID           string     `json:"block_id"`
-	Timestamp    string     `json:"timestamp"`
-	PrevID       string     `json:"prev_id"`
-	PrevProof    string     `json:"prev_proof"`
-	Transactions []string   `json:"transactions"`
-	Proof        BlockProof `json:"proof"`
+	Version      string      `json:"version"`
+	Header       BlockHeader `json:"header"`
+	Transactions []string    `json:"transactions"`
+	Proof        BlockProof  `json:"proof"`
+}
+
+type BlockHeader struct {
+	BlockId   string `json:"blockId"`
+	DcId      string `json:"dcId"`
+	PrevId    string `json:"prevId"`
+	PrevProof string `json:"prevProof"`
+	Timestamp string `json:"timestamp"`
 }
 
 type BlockProof struct {
-	Scheme string `json:"scheme"`
 	Proof  string `json:"proof"`
+	Scheme string `json:"scheme,omitempty"`
 	Nonce  int64  `json:"nonce,omitempty"`
 }