transaction number must be multiple (and text)

objects/btc-transaction/definition.json

@@ -8,7 +8,8 @@
     "transaction-number": {
       "description": "A Bitcoin transaction number in a sequence of transactions",
       "ui-priority": 0,
-      "misp-attribute": "integer"
+      "multiple": true,
+      "misp-attribute": "text"
     },
     "time": {
       "description": "Date and time of transaction",
@@ -41,7 +42,7 @@
       "misp-attribute": "btc"
     }
   },
-  "version": 2,
+  "version": 3,
   "description": "An object to describe a Bitcoin transaction. Best to be used with bitcoin-wallet.",
   "meta-category": "financial",
   "uuid": "B7341729-5A8A-439F-A775-6D814DA3C7B5",