diff --git a/blockchain/contracts/PoBA.sol b/blockchain/contracts/PoBA.sol
index 96cc114..588f383 100644
--- a/blockchain/contracts/PoBA.sol
+++ b/blockchain/contracts/PoBA.sol
@@ -5,31 +5,75 @@ contract PoBA {
   address public owner;
   address public signer;
 
-  mapping (address => string[]) public accounts;
-
-  constructor() {
+  constructor() public {
     owner = msg.sender;
     signer = owner;
   }
 
+  struct BankAccount {
+    string accountNumber;
+    string bankName;
+    uint256 attestationDate;
+    bool attestationFact;
+
+    uint256 creationBlock;
+  }
+
+  struct User {
+    uint256 creationBlock;
+    BankAccount[] bankAccounts;
+  }
+
+  mapping (address => User) public users;
+
   function signerIsValid(bytes32 data, uint8 v, bytes32 r, bytes32 s)
   public constant returns (bool)
   {
       bytes memory prefix = "\x19Ethereum Signed Message:\n32";
-      bytes32 prefixed = keccak256(prefix, data);
+      bytes32 prefixed = keccak256(abi.encodePacked(prefix, data));
       return (ecrecover(prefixed, v, r, s) == signer);
   }
 
-  function register(string account, uint8 v, bytes32 r, bytes32 s) {
+  function userExists(address wallet)
+  public view returns (bool)
+  {
+    return (users[wallet].creationBlock > 0);
+  }
+
+  function register(
+    string account,
+    string institution,
+    uint8 v, bytes32 r, bytes32 s) public {
+
     require(bytes(account).length > 0);
+    require(bytes(institution).length > 0);
+    require(users[msg.sender].bankAccounts.length < 2**256-1);
+
+    if (!userExists(msg.sender)) {
+      // new user
+      users[msg.sender].creationBlock = block.number;
+    }
+
+    BankAccount memory ba;
+
+    ba.accountNumber = account;
+    ba.bankName = institution;
+    ba.attestationDate = now;
+    ba.attestationFact = true;
+    ba.creationBlock = block.number;
 
-    bytes32 hash = keccak256(msg.sender, account);
+    bytes32 hash = keccak256(
+    abi.encodePacked(
+      msg.sender,
+        ba.accountNumber,
+        ba.bankName
+    ));
     require(signerIsValid(hash, v, r, s));
 
-    accounts[msg.sender].push(account);
+    users[msg.sender].bankAccounts.push(ba);
   }
 
   function accountsLength(address _address) public constant returns (uint256) {
-    return accounts[_address].length;
+    return users[_address].bankAccounts.length;
   }
 }
diff --git a/frontend/src/PoBA.js b/frontend/src/PoBA.js
index f47911d..0b00217 100644
--- a/frontend/src/PoBA.js
+++ b/frontend/src/PoBA.js
@@ -14,8 +14,8 @@ const PobaContract = contract(pobaArtifact)
 
 const getBankAccounts = async token => {
   const result = await axios.get(`/api/accounts/bank-accounts/${token}`)
-
-  return result.data.accounts.numbers
+  const { ach, eft } = result.data.accounts.numbers
+  return [...ach, ...eft]
 }
 
 const getSignedBankAccount = async (accountId, ethAccount, token) => {
@@ -80,9 +80,16 @@ class PoBA extends Component {
     this.setState({ loading: true })
     return getSignedBankAccount(accountId, ethAccount, token)
       .then(txData => {
-        return this.pobaContract.register(txData.account, txData.v, txData.r, txData.s, {
-          from: ethAccount
-        })
+        return this.pobaContract.register(
+          txData.bankAccount.account,
+          txData.bankAccount.institution,
+          txData.v,
+          txData.r,
+          txData.s,
+          {
+            from: ethAccount
+          }
+        )
       })
       .then(
         () => successAlert(),
diff --git a/frontend/src/ui/BankAccountList.js b/frontend/src/ui/BankAccountList.js
index 3275231..3022ffe 100644
--- a/frontend/src/ui/BankAccountList.js
+++ b/frontend/src/ui/BankAccountList.js
@@ -22,11 +22,9 @@ const Button = glamorous.button(buttonStyles, {
 export default ({ bankAccounts, onClick }) => (
   <BankAccountList>
     {bankAccounts.map((bankAccount, index) => (
-      <Div textAlign="center">
+      <Div key={index} textAlign="center">
         Bank account number: <strong>{bankAccount.account} </strong>
-        <Button key={index} onClick={() => onClick(bankAccount)}>
-          Verify
-        </Button>
+        <Button onClick={() => onClick(bankAccount)}>Verify</Button>
       </Div>
     ))}
   </BankAccountList>
diff --git a/server/controllers/accounts.js b/server/controllers/accounts.js
index 08fa03e..b910635 100644
--- a/server/controllers/accounts.js
+++ b/server/controllers/accounts.js
@@ -20,11 +20,26 @@ const getBankAccounts = async accessToken => {
   }
 }
 
+const getInstitutionById = async institutionId => {
+  try {
+    return await plaidClient.getInstitutionById(institutionId)
+  } catch (error) {
+    logger.error({ status: error.status_code }, 'Error getting institution')
+    throw Error(`[getInstitutionById] ${error.error_code}: ${error.error_message}`)
+  }
+}
+
 const getBankAccount = async (accessToken, accountId) => {
   const bankAccounts = await getBankAccounts(accessToken)
-  const numberBankAccount = bankAccounts.numbers.filter(account => account.account_id === accountId)
-  logger.info({ numberBankAccount }, 'Got bank account')
-  return numberBankAccount[0]
+  const { numbers, item } = bankAccounts
+  const ach = numbers.ach.filter(account => account.account_id === accountId)
+  const eft = numbers.eft.filter(account => account.account_id === accountId)
+  const number = [...ach, ...eft][0]
+  const institutionId = item.institution_id
+  const { institution } = await getInstitutionById(institutionId)
+  const bankAccount = { account: number.account, institution: institution.name }
+  logger.info(bankAccount, 'Got bank account')
+  return bankAccount
 }
 
 module.exports = {
diff --git a/server/etc/plaid.js b/server/etc/plaid.js
index 076d72f..cec1721 100644
--- a/server/etc/plaid.js
+++ b/server/etc/plaid.js
@@ -5,7 +5,8 @@ const plaidClient = new plaid.Client(
   PLAID_CLIENT_ID,
   PLAID_SECRET,
   PLAID_PUBLIC_KEY,
-  plaid.environments[PLAID_ENV]
+  plaid.environments[PLAID_ENV],
+  { version: '2018-05-22' }
 )
 
 module.exports = plaidClient
diff --git a/server/routes/accounts.js b/server/routes/accounts.js
index 5b0f373..8b6c172 100644
--- a/server/routes/accounts.js
+++ b/server/routes/accounts.js
@@ -36,10 +36,10 @@ const signBankAccount = (req, res) => {
 
       const accessToken = await accountsController.getAccessToken(token)
 
-      const { account } = await accountsController.getBankAccount(accessToken, accountId)
-      const hash = web3.utils.sha3(ethAccount + Buffer.from(account).toString('hex'))
+      const bankAccount = await accountsController.getBankAccount(accessToken, accountId)
+      const hash = web3.utils.sha3(ethAccount + Buffer.from(bankAccount.account).toString('hex'))
       const { v, r, s } = web3.eth.accounts.sign(hash, PRIVATE_KEY)
-      return res.send({ account, v, r, s })
+      return res.send({ bankAccount, v, r, s })
     } catch (e) {
       logger.error(e.message, 'There was an error getting the transaction data')
       return res.status(400).send({ error: e.message })
diff --git a/server/tests/accounts.controller.spec.js b/server/tests/accounts.controller.spec.js
index 14fad0e..2468647 100644
--- a/server/tests/accounts.controller.spec.js
+++ b/server/tests/accounts.controller.spec.js
@@ -7,6 +7,7 @@ const mockExchangePublicToken = mocks.exchangePublicToken
 const mockExchangePublicTokenError = mocks.exchangePublicTokenError
 const mockGetAuth = mocks.getAuth
 const mockGetAuthError = mocks.getAuthError
+const mockGetInstitutionById = mocks.getInstitutionById
 
 jest.mock('../etc/plaid', () => ({
   exchangePublicToken: jest.fn(publicToken => {
@@ -16,7 +17,8 @@ jest.mock('../etc/plaid', () => ({
   getAuth: jest.fn(accessToken => {
     if (accessToken === mockAccessToken) return mockGetAuth
     return mockGetAuthError
-  })
+  }),
+  getInstitutionById: jest.fn(() => mockGetInstitutionById)
 }))
 
 describe('[controllers] accounts', () => {
@@ -39,8 +41,12 @@ describe('[controllers] accounts', () => {
     })
   })
   it('should return only one bank account', async () => {
-    const accountId = mockGetAuth.numbers[0].account_id
+    const accountId = mockGetAuth.numbers.ach[0].account_id
     const account = await accountsController.getBankAccount(mockAccessToken, accountId)
-    expect(account).toEqual(mockGetAuth.numbers[0])
+    const expected = {
+      account: mockGetAuth.numbers.ach[0].account,
+      institution: mockGetInstitutionById.institution.name
+    }
+    expect(account).toEqual(expected)
   })
 })
diff --git a/server/tests/accounts.route.spec.js b/server/tests/accounts.route.spec.js
index 6180df9..4802402 100644
--- a/server/tests/accounts.route.spec.js
+++ b/server/tests/accounts.route.spec.js
@@ -6,6 +6,14 @@ const mockEthAccount = '0x92970dbD5C0Ee6b439422bFd7cD71e1DDA921A03'
 const mockToken = 'public-token-de3ce8ef-33f8-452c-a685-8671031fc0f6'
 const mockAccessToken = mocks.exchangePublicToken.access_token
 const mockBankAccounts = mocks.getAuth
+const mockBankAccount = {
+  bankAccount: {
+    account: '9900009606',
+    account_id: 'vzeNDwK7KQIm4yEog683uElbp9GRLEFXGK98D',
+    routing: '011401533',
+    wire_routing: '021000021'
+  }
+}
 const mockSign = {
   v: '0x1b',
   r: '0x9a4acff8fcc5fc48278482669d3db5a728a226c8f82bce2895208c59ca5637b9',
@@ -22,8 +30,8 @@ jest.mock('../controllers/accounts', () => ({
     throw new Error('[getBankAccounts] INVALID_TOKEN: Error getting bank accounts')
   }),
   getBankAccount: jest.fn((accessToken, accountId) => {
-    if (accessToken === mockAccessToken && accountId === mockBankAccounts.numbers[0].account_id)
-      return mockBankAccounts.numbers[0]
+    if (accessToken === mockAccessToken && accountId === mockBankAccounts.numbers.ach[0].account_id)
+      return mockBankAccounts.numbers.ach[0]
     throw new Error('There was an error getting the transaction data')
   })
 }))
@@ -47,7 +55,8 @@ describe('[routes] accounts', () => {
       .then(res => {
         const { accounts } = res.body
         expect(res.status).toEqual(200)
-        expect(accounts.numbers.length).toBeGreaterThanOrEqual(0)
+        expect(accounts.numbers.ach.length).toBeGreaterThanOrEqual(0)
+        expect(accounts.numbers.eft.length).toBeGreaterThanOrEqual(0)
       }))
   it('should return error', () =>
     request(app)
@@ -60,7 +69,7 @@ describe('[routes] accounts', () => {
       .post('/api/accounts/sign-account')
       .send({
         token: mockToken,
-        accountId: mockBankAccounts.numbers[0].account_id
+        accountId: mockBankAccounts.numbers.ach[0].account_id
       })
       .then(res => {
         expect(res.status).toEqual(404)
@@ -70,7 +79,7 @@ describe('[routes] accounts', () => {
       .post('/api/accounts/sign-account')
       .send({
         ethAccount: mockEthAccount,
-        accountId: mockBankAccounts.numbers[0].account_id
+        accountId: mockBankAccounts.numbers.ach[0].account_id
       })
       .then(res => {
         expect(res.status).toEqual(404)
@@ -91,7 +100,7 @@ describe('[routes] accounts', () => {
       .send({
         ethAccount: mockEthAccount,
         token: `${mockToken}-fail`,
-        accountId: mockBankAccounts.numbers[0].account_id
+        accountId: mockBankAccounts.numbers.ach[0].account_id
       })
       .then(res => {
         expect(res.status).toEqual(400)
@@ -102,11 +111,10 @@ describe('[routes] accounts', () => {
       .send({
         ethAccount: mockEthAccount,
         token: mockToken,
-        accountId: mockBankAccounts.numbers[0].account_id
+        accountId: mockBankAccounts.numbers.ach[0].account_id
       })
       .then(res => {
-        const { account } = mockBankAccounts.numbers[0]
-        expect(res.body).toEqual({ account, ...mockSign })
+        expect(res.body).toEqual({ ...mockBankAccount, ...mockSign })
         expect(res.status).toEqual(200)
       }))
 })
diff --git a/server/tests/utils/mocks.js b/server/tests/utils/mocks.js
index 5ff18b9..1939b2c 100644
--- a/server/tests/utils/mocks.js
+++ b/server/tests/utils/mocks.js
@@ -29,14 +29,17 @@ const data = {
         type: 'depository'
       }
     ],
-    numbers: [
-      {
-        account: '9900009606',
-        account_id: 'vzeNDwK7KQIm4yEog683uElbp9GRLEFXGK98D',
-        routing: '011401533',
-        wire_routing: '021000021'
-      }
-    ],
+    numbers: {
+      ach: [
+        {
+          account: '9900009606',
+          account_id: 'vzeNDwK7KQIm4yEog683uElbp9GRLEFXGK98D',
+          routing: '011401533',
+          wire_routing: '021000021'
+        }
+      ],
+      eft: []
+    },
     item: { Object },
     request_id: '45QSn',
     status_code: 200
@@ -48,6 +51,28 @@ const data = {
     error_type: 'INVALID_REQUEST',
     request_id: 'qcaHk',
     http_code: 404
+  },
+  getInstitutionById: {
+    institution: {
+      credentials: [
+        {
+          label: 'User ID',
+          name: 'username',
+          type: 'text'
+        },
+        {
+          label: 'Password',
+          name: 'password',
+          type: 'password'
+        }
+      ],
+      has_mfa: true,
+      institution_id: 'ins_109512',
+      mfa: ['code', 'list', 'questions', 'selections'],
+      name: 'Houndstooth Bank',
+      products: ['auth', 'balance', 'identity', 'transactions']
+    },
+    request_id: '9VpnU'
   }
 }