diff --git a/a3p-integration/proposals/p:upgrade-19/.gitignore b/a3p-integration/proposals/p:upgrade-19/.gitignore
index 59e3519121b..b74655149d1 100644
--- a/a3p-integration/proposals/p:upgrade-19/.gitignore
+++ b/a3p-integration/proposals/p:upgrade-19/.gitignore
@@ -3,4 +3,4 @@ testUpgradedBoard/
 addUsdLemons/
 upgradeProvisionPool/
 upgradeAgoricNames/
-
+appendChainInfo/
diff --git a/a3p-integration/proposals/p:upgrade-19/agoricNames.test.js b/a3p-integration/proposals/p:upgrade-19/agoricNames.test.js
index d15a8c3beaa..255eec2d139 100644
--- a/a3p-integration/proposals/p:upgrade-19/agoricNames.test.js
+++ b/a3p-integration/proposals/p:upgrade-19/agoricNames.test.js
@@ -5,29 +5,25 @@
  * Ideas:
  * - write something new to agoricNames and check vstorage
  * - can you add a new chain for orc?
- * - can you add a new psm?
  * - can you open a vault?
  */
 
 import '@endo/init';
 import test from 'ava';
-import {
-  evalBundles,
-  agd as agdAmbient,
-  agoric,
-  getDetailsMatchingVats,
-} from '@agoric/synthetic-chain';
-import { makeVstorageKit } from '@agoric/client-utils';
+import { evalBundles, getDetailsMatchingVats } from '@agoric/synthetic-chain';
+import { makeVstorageKit, retryUntilCondition } from '@agoric/client-utils';
 
 const AGORIC_NAMES_UPGRADE_DIR = 'upgradeAgoricNames';
-const WRITE_AGORIC_NAMES = 'writeToAgoricNames';
-
-const ambientAuthority = {
-  query: agdAmbient.query,
-  follow: agoric.follow,
-  setTimeout,
-  log: console.log,
-};
+const WRITE_AGORIC_NAMES_DIR = 'writeToAgoricNames';
+const APPEND_CHAIN_DIR = 'appendChainInfo';
+
+const makeWaitUntilKeyFound = (keyFinder, vstorage) => (path, targetKey) =>
+  retryUntilCondition(
+    () => vstorage.keys(path),
+    keys => keyFinder(keys, targetKey),
+    'Key not found.',
+    { maxRetries: 5, retryIntervalMs: 2000, log: console.log, setTimeout },
+  );
 
 test.before(async t => {
   const vstorageKit = await makeVstorageKit(
@@ -40,7 +36,7 @@ test.before(async t => {
   };
 });
 
-test.serial.only('upgrade agoricNames', async t => {
+test.serial('upgrade agoricNames', async t => {
   await evalBundles(AGORIC_NAMES_UPGRADE_DIR);
 
   const vatDetailsAfter = await getDetailsMatchingVats('agoricNames');
@@ -53,7 +49,7 @@ test.serial.only('upgrade agoricNames', async t => {
   t.pass();
 });
 
-test.serial.only('check all existing values are preserved', async t => {
+test.serial('check all existing values are preserved', async t => {
   // @ts-expect-error
   const { vstorageKit } = t.context;
   const agoricNamesChildren = [
@@ -78,7 +74,7 @@ test.serial.only('check all existing values are preserved', async t => {
   const agoricNamesBefore = await getAgoricNames();
   console.log('AGORIC_NAMES_BEFORE', agoricNamesBefore);
 
-  await evalBundles(WRITE_AGORIC_NAMES);
+  await evalBundles(WRITE_AGORIC_NAMES_DIR);
 
   const agoricNamesAfter = await getAgoricNames();
   t.like(agoricNamesAfter, agoricNamesBefore);
@@ -91,8 +87,55 @@ test.serial.only('check all existing values are preserved', async t => {
   );
 });
 
-test.serial.only('check we can add new chains', async t => {
-  await evalBundles('chainInfoTest');
+test.serial('check we can add new chains', async t => {
+  // @ts-expect-error
+  const { vstorageKit } = t.context;
+  await evalBundles(APPEND_CHAIN_DIR);
+
+  const waitUntilKeyFound = makeWaitUntilKeyFound(
+    (keys, targetKey) => keys.includes(targetKey),
+    vstorageKit.vstorage,
+  );
+  await Promise.all([
+    waitUntilKeyFound('published.agoricNames.chain', 'hot'),
+    waitUntilKeyFound(
+      'published.agoricNames.chainConnection',
+      'cosmoshub-4_hot-1',
+    ),
+  ]);
+
+  const [chainInfo, connectionInfo] = await Promise.all([
+    vstorageKit.readLatestHead('published.agoricNames.chain.hot'),
+    vstorageKit.readLatestHead(
+      'published.agoricNames.chainConnection.cosmoshub-4_hot-1',
+    ),
+  ]);
+
+  t.log({
+    chainInfo,
+    connectionInfo,
+  });
+
+  t.deepEqual(chainInfo, { allegedName: 'Hot New Chain', chainId: 'hot-1' });
+  t.deepEqual(connectionInfo, {
+    client_id: '07-tendermint-2',
+    counterparty: {
+      client_id: '07-tendermint-3',
+      connection_id: 'connection-99',
+    },
+    id: 'connection-1',
+    state: 3,
+    transferChannel: {
+      channelId: 'channel-1',
+      counterPartyChannelId: 'channel-1',
+      counterPartyPortId: 'transfer',
+      ordering: 1,
+      portId: 'transfer',
+      state: 3,
+      version: 'ics20-1',
+    },
+  });
+
   t.pass();
 });
 
diff --git a/a3p-integration/proposals/p:upgrade-19/package.json b/a3p-integration/proposals/p:upgrade-19/package.json
index 5b120f2b804..53a8b1e74fc 100644
--- a/a3p-integration/proposals/p:upgrade-19/package.json
+++ b/a3p-integration/proposals/p:upgrade-19/package.json
@@ -8,7 +8,8 @@
       "vats/upgrade-paRegistry.js",
       "vats/upgrade-board.js",
       "testing/test-upgraded-board.js testUpgradedBoard",
-      "vats/upgrade-agoricNames.js upgradeAgoricNames"
+      "vats/upgrade-agoricNames.js upgradeAgoricNames",
+      "testing/append-chain-info appendChainInfo"
     ]
   },
   "type": "module",