diff --git a/demo/README.md b/demo/README.md
index 59477b22..37621b4c 100644
--- a/demo/README.md
+++ b/demo/README.md
@@ -64,6 +64,8 @@ docker push 0xdeca10bcontainerreg.azurecr.io/public/samples/blockchain-ai/0xdeca
 docker push 0xdeca10bcontainerreg.azurecr.io/public/samples/blockchain-ai/0xdeca10b-demo:latest
 ```
 
+(Microsoft Devs) To update the production website, see the instructions at the top of [service.Dockerfile](./service.Dockerfile).
+
 ## Troubleshooting Setup
 If you have problems running the setup steps related to node-gyp, then you might need to set Python 2.7 to be your default. Recommendation: Set up a Python 2.7 Conda environment and activate it.
 
diff --git a/demo/client/public/index.html b/demo/client/public/index.html
index 7f03012c..2289656d 100644
--- a/demo/client/public/index.html
+++ b/demo/client/public/index.html
@@ -19,7 +19,7 @@
       work correctly both with client-side routing and a non-root public URL.
       Learn how to configure a non-root public URL by running `npm run build`.
     -->
-    <title>Sharing Updatable Models (SUM) Demo</title>
+    <title>Sharing Updatable Models (SUM)</title>
   </head>
   <body>
     <noscript>
diff --git a/demo/client/src/contracts/loader.ts b/demo/client/src/contracts/loader.ts
index 464a2fba..12ceab03 100644
--- a/demo/client/src/contracts/loader.ts
+++ b/demo/client/src/contracts/loader.ts
@@ -3,7 +3,7 @@ import { Contract } from 'web3-eth-contract'
 import Classifier from './compiled/Classifier64.json'
 import CollaborativeTrainer64 from './compiled/CollaborativeTrainer64.json'
 import DataHandler from './compiled/DataHandler64.json'
-import IncentiveMechanism from './compiled/IncentiveMechanism.json'
+import IncentiveMechanism from './compiled/IncentiveMechanism64.json'
 
 /**
  * An already deployed instance of a CollaborativeTrainer contract.
@@ -63,15 +63,15 @@ export class ContractLoader {
 	}
 
 	/**
-	 * 
+	 * Loads and validates the contracts.
 	 * @param address The address of the main entry point contract.
+	 * @returns An interface to help you use the contracts.
 	 */
 	async load(address: string): Promise<CollaborativeTrainer> {
 		if (!address || address.length === 0) {
 			return Promise.reject("A blank address was given")
 		}
 
-		// It is a valid address, so check the other interfaces.
 		const mainEntryPoint = this.getContractInstance({
 			abi: CollaborativeTrainer64.abi,
 			address,
@@ -95,11 +95,20 @@ export class ContractLoader {
 					address: incentiveMechanismAddress
 				})
 			})
-		]).then(([
+		]).then(async ([
 			classifier,
 			dataHandler,
 			incentiveMechanism,
 		]) => {
+			const [classifierOwner, dataHandlerOwner, incentiveMechanismOwner] = await Promise.all([
+				classifier.methods.owner().call(),
+				dataHandler.methods.owner().call(),
+				incentiveMechanism.methods.owner().call(),
+			])
+			if (classifierOwner !== address || dataHandlerOwner !== address || incentiveMechanismOwner !== address) {
+				throw new Error(`The classifer, data handler, and incentive mechanism must be owned by the main interface.\n  Main interface address: ${address}\n  Classifier owner: ${classifierOwner}\n  Data handler owner: ${dataHandlerOwner}\n  IM owner: ${incentiveMechanismOwner}.`)
+			}
+
 			return new CollaborativeTrainer(mainEntryPoint,
 				classifier, dataHandler, incentiveMechanism)
 		})
diff --git a/demo/service.Dockerfile b/demo/service.Dockerfile
index 98eab130..db40b1a9 100644
--- a/demo/service.Dockerfile
+++ b/demo/service.Dockerfile
@@ -6,7 +6,7 @@
 # The deployment is set up to happen automatically in Azure.
 
 # When NODE_ENV='production'
-# Set BACK_END_URL to the address for the back end.
+# Set BACK_END_URL in your environment to the address for the back end service.
 
 FROM appsvc/node:10-lts
 
