diff --git a/blockchain/abci.go b/blockchain/abci.go
index 006cae3..d385501 100644
--- a/blockchain/abci.go
+++ b/blockchain/abci.go
@@ -45,7 +45,6 @@ func requireIDPrefix(id, pref string) error {
 	return nil
 }
 
-
 func verifyAndExtractBody(db *badger.DB, tx []byte) (map[string]interface{}, error) {
 	var outer struct {
 		Body      types.CommiterTxBody `json:"body"`
@@ -131,13 +130,13 @@ func (app *PromiseApp) CheckTx(req abci.RequestCheckTx) abci.ResponseCheckTx {
 		if strings.TrimSpace(p.Text) == "" {
 			return abci.ResponseCheckTx{Code: 2, Log: "promise.text is required"}
 		}
-		if p.Due == 0 {
-			return abci.ResponseCheckTx{Code: 2, Log: "promise.due is required"}
-		}
+		//if p.Due == 0 {
+		//	return abci.ResponseCheckTx{Code: 2, Log: "promise.due is required"}
+		//}
 		// Commitment due
-		if c.Due == 0 {
-			return abci.ResponseCheckTx{Code: 2, Log: "commitment.due is required"}
-		}
+		//if c.Due == 0 {
+		//	return abci.ResponseCheckTx{Code: 2, Log: "commitment.due is required"}
+		//}
 
 		// Связность по ER
 		if c.PromiseID != p.ID {
@@ -165,7 +164,7 @@ func (app *PromiseApp) CheckTx(req abci.RequestCheckTx) abci.ResponseCheckTx {
 			return abci.ResponseCheckTx{Code: 3, Log: err.Error()}
 		}
 
-		// Существование коммитера (у тебя уже было — оставляю)
+		// Существование коммитера
 		if err := app.db.View(func(txn *badger.Txn) error {
 			_, e := txn.Get([]byte(c.CommiterID))
 			if e == badger.ErrKeyNotFound {
@@ -229,7 +228,7 @@ func (app *PromiseApp) CheckTx(req abci.RequestCheckTx) abci.ResponseCheckTx {
 
 	var single struct {
 		Body      types.BeneficiaryTxBody `json:"body"`
-		Signature string            `json:"signature"`
+		Signature string                  `json:"signature"`
 	}
 	if err2 := json.Unmarshal(req.Tx, &single); err2 == nil && single.Body.Type == "beneficiary" {
 		if err := requireIDPrefix(single.Body.ID, "beneficiary"); err != nil {
@@ -310,7 +309,7 @@ func (app *PromiseApp) DeliverTx(req abci.RequestDeliverTx) abci.ResponseDeliver
 	{
 		var outer struct {
 			Body      types.BeneficiaryTxBody `json:"body"`
-			Signature string            `json:"signature"`
+			Signature string                  `json:"signature"`
 		}
 		if err := json.Unmarshal(req.Tx, &outer); err == nil && outer.Body.Type == "beneficiary" {
 			// (пока без проверки подписи — можно добавить политику позже)
diff --git a/docs/database_schema.md b/docs/database_schema.md
index 2d405d9..00ba10c 100644
--- a/docs/database_schema.md
+++ b/docs/database_schema.md
@@ -3,41 +3,41 @@
 ![[ER.svg]]
 
 <details>
-@startuml
+    @startuml
 
-entity Promise {
-  * ID: uuid
-  --
-  * text: text
-  * due: datetime
-  BeneficiaryID: uuid
-  ParentPromiseID: uuid
-}
+    entity Promise {
+      * ID: uuid
+      --
+      * text: string
+      due: datetime
+      BeneficiaryID: uuid
+      ParentPromiseID: uuid
+    }
 
-entity Beneficiary {
-  * ID: uuid
-  --
-  * name: string
-}
+    entity Beneficiary {
+      * ID: uuid
+      --
+      * name: string
+    }
 
-entity Commitment {
-  * ID: uuid
-  --
-  PromiseID: int
-  CommiterID: int
-  due: datetime
-}
+    entity Commitment {
+      * ID: uuid
+      --
+      PromiseID: uuid
+      CommiterID: uuid
+      due: datetime
+    }
 
-entity Commiter {
-  * ID: int
-  --
-  * name: string
-}
+    entity Commiter {
+      * ID: uuid
+      --
+      * name: string
+    }
 
-Commitment }|--|| Promise : belongs to
-Commitment }|--|| Commiter : made by
-Promise }o--|| Beneficiary : has
-Promise }--o Promise : parent of
+    Commitment }|--|| Promise : belongs to
+    Commitment }|--|| Commiter : made by
+    Promise }o--|| Beneficiary : has
+    Promise }--o Promise : parent of
 
-@enduml
-</details>
\ No newline at end of file
+    @enduml
+</details>