Adding isCompatible():

src/app/scan/scan.component.ts

@@ -14,6 +14,7 @@ export class ScanComponent implements OnInit {
   }
 
   ngOnInit() {
+    this.schema.raw = "op1:pDjJuCq2aT7UoFRT:pnMKwwkTVZ:nF84HZ9zHkEKrm3RJRsBZ6P8+ipin9CNR/1KTlW2oFazK1s+XnhVApxy0g2J57NuX0l5VwpEP9XlGRcCgg3gkwfTJeOBf0wKgj6kEfJcUmoRV9JNPtHNd0riFBbxzb7QsKiT5L2Odr6ETpak76hTDA0naj3n0NfSX9zq2WyA6z8CsU7pUkrDmLqr2WJIw46JZXnj0mFytyf6H4dBSuk6Z0sxHw=="
     this.schema.decrypted_raw = "%JtuB4O9M42%Gitea|Nicolas|542superGoOD_pW&|klier.nicolas@protonmail.com|https://nicolasklier.de:3000|($vb)$O4|()What's your favorite series%Rick and morty|(2fa)otpauth://totp/OffPass%20Test?secret=d34gfkki5dkd5knifysrpgndd5xb2c7eddwki7ya4pvoisfa5c3ko5pv&issuer=Nicolas%20Klier"
     this.schema.parse()
   }

src/app/schema.service.ts

@@ -25,6 +25,8 @@ export interface IFormat {
 })
 export class SchemaService {
 
+  CURRENT_VERSION:number = 1
+
   raw: String = ""
   decrypted_raw: String = ""
 
@@ -42,22 +44,24 @@ export class SchemaService {
   };
 
   isCompatible(): boolean {
-    return true;
+    const version = this.raw.split(":")[0]
-
+    const version_number = Number(version.substring(2, version.length))
+    if(version.startsWith("op")){
+      if(version_number == this.CURRENT_VERSION){
+        return true
+      }
+    }
+    return false
   }
 
   decrypt() {
     if (this.isCompatible) {
-
     }
 
-
   }
-
   encrypt() {
 
   }
-
   parse() {
     const parts = this.decrypted_raw.split('|')