diff --git a/package-lock.json b/package-lock.json
index f5270b3..3eea841 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -44,6 +44,7 @@
         "eslint": "^8.56.0",
         "eslint-plugin-react-hooks": "^4.6.0",
         "eslint-plugin-react-refresh": "^0.4.5",
+        "prettier": "3.2.5",
         "ts-css-modules-vite-plugin": "1.0.20",
         "typescript": "^5.2.2",
         "vite": "^5.1.4"
@@ -4300,6 +4301,21 @@
         "node": ">= 0.8.0"
       }
     },
+    "node_modules/prettier": {
+      "version": "3.2.5",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.2.5.tgz",
+      "integrity": "sha512-3/GWa9aOC0YeD7LUfvOG2NiDyhOWRvt1k+rcKhOuYnMY24iiCphgneUfJDyFXd6rZCAnuLBv6UeAULtrhT/F4A==",
+      "dev": true,
+      "bin": {
+        "prettier": "bin/prettier.cjs"
+      },
+      "engines": {
+        "node": ">=14"
+      },
+      "funding": {
+        "url": "https://github.com/prettier/prettier?sponsor=1"
+      }
+    },
     "node_modules/pretty-bytes": {
       "version": "6.1.1",
       "resolved": "https://registry.npmjs.org/pretty-bytes/-/pretty-bytes-6.1.1.tgz",
diff --git a/package.json b/package.json
index 0eca093..fcc2c1c 100644
--- a/package.json
+++ b/package.json
@@ -9,8 +9,8 @@
     "build": "tsc && vite build",
     "lint": "eslint . --ext ts,tsx --report-unused-disable-directives --max-warnings 0",
     "lint:fix": "eslint . --fix --ext ts,tsx --report-unused-disable-directives --max-warnings 0",
-    "formatter:check": "npx prettier --check \"src/**/*.{ts,tsx,js,jsx,html,css,sass,less,yml,md,graphql}\"",
-    "formatter:fix": "npx prettier --write \"src/**/*.{ts,tsx,js,jsx,html,css,sass,less,yml,md,graphql}\"",
+    "formatter:check": "prettier --check \"src/**/*.{ts,tsx,js,jsx,html,css,sass,less,yml,md,graphql}\"",
+    "formatter:fix": "prettier --write \"src/**/*.{ts,tsx,js,jsx,html,css,sass,less,yml,md,graphql}\"",
     "preview": "vite preview"
   },
   "dependencies": {
@@ -50,6 +50,7 @@
     "eslint": "^8.56.0",
     "eslint-plugin-react-hooks": "^4.6.0",
     "eslint-plugin-react-refresh": "^0.4.5",
+    "prettier": "3.2.5",
     "ts-css-modules-vite-plugin": "1.0.20",
     "typescript": "^5.2.2",
     "vite": "^5.1.4"
diff --git a/src/components/AppBar/AppBar.tsx b/src/components/AppBar/AppBar.tsx
index af03c5c..ce5eacb 100644
--- a/src/components/AppBar/AppBar.tsx
+++ b/src/components/AppBar/AppBar.tsx
@@ -43,12 +43,14 @@ export const AppBar = () => {
   useEffect(() => {
     if (metadataState) {
       if (metadataState.content) {
-        const { picture, display_name, name } = JSON.parse(metadataState.content)
-  
+        const { picture, display_name, name } = JSON.parse(
+          metadataState.content
+        )
+
         if (picture) {
           setUserAvatar(picture)
         }
-  
+
         setUsername(shorten(display_name || name || '', 7))
       } else {
         setUserAvatar('')
@@ -84,9 +86,7 @@ export const AppBar = () => {
       })
     )
 
-    dispatch(
-      setMetadataEvent(metadataController.getEmptyMetadataEvent())
-    )
+    dispatch(setMetadataEvent(metadataController.getEmptyMetadataEvent()))
 
     // clear authToken saved in local storage
     clearAuthToken()
diff --git a/src/components/username.tsx b/src/components/username.tsx
index 928d0c6..ff93494 100644
--- a/src/components/username.tsx
+++ b/src/components/username.tsx
@@ -1,6 +1,9 @@
-import { Typography, IconButton } from '@mui/material'
+import { Typography, IconButton, Box, useTheme } from '@mui/material'
 import { useSelector } from 'react-redux'
 import { State } from '../store/rootReducer'
+import { hexToNpub } from '../utils'
+import { Link } from 'react-router-dom'
+import { getProfileRoute } from '../routes'
 
 type Props = {
   username: string
@@ -44,3 +47,47 @@ const Username = ({ username, avatarContent, handleClick }: Props) => {
 }
 
 export default Username
+
+type UserProps = {
+  pubkey: string
+  name: string
+  image?: string
+}
+
+/**
+ *  This component will be used for the displaying username and profile picture.
+ *  If image is not available, robohash image will be displayed
+ */
+export const UserComponent = ({ pubkey, name, image }: UserProps) => {
+  const theme = useTheme()
+
+  const npub = hexToNpub(pubkey)
+  const roboImage = `https://robohash.org/${npub}.png?set=set3`
+
+  return (
+    <Box sx={{ display: 'flex', alignItems: 'center', gap: '10px' }}>
+      <img
+        src={image || roboImage}
+        alt="User Image"
+        className="profile-image"
+        style={{
+          borderWidth: '3px',
+          borderStyle: 'solid',
+          borderColor: `#${pubkey.substring(0, 6)}`
+        }}
+      />
+      <Link to={getProfileRoute(pubkey)}>
+        <Typography
+          component="label"
+          sx={{
+            textAlign: 'center',
+            cursor: 'pointer',
+            color: theme.palette.text.primary
+          }}
+        >
+          {name}
+        </Typography>
+      </Link>
+    </Box>
+  )
+}
diff --git a/src/layouts/Main.tsx b/src/layouts/Main.tsx
index e258e36..e1d6f48 100644
--- a/src/layouts/Main.tsx
+++ b/src/layouts/Main.tsx
@@ -5,7 +5,12 @@ import { useDispatch } from 'react-redux'
 import { Outlet } from 'react-router-dom'
 import { AppBar } from '../components/AppBar/AppBar'
 import { restoreState, setAuthState, setMetadataEvent } from '../store/actions'
-import { clearAuthToken, clearState, loadState, saveNsecBunkerDelegatedKey } from '../utils'
+import {
+  clearAuthToken,
+  clearState,
+  loadState,
+  saveNsecBunkerDelegatedKey
+} from '../utils'
 import { LoadingSpinner } from '../components/LoadingSpinner'
 import { Dispatch } from '../store/store'
 import { MetadataController, NostrController } from '../controllers'
@@ -29,9 +34,7 @@ export const MainLayout = () => {
         })
       )
 
-      dispatch(
-        setMetadataEvent(metadataController.getEmptyMetadataEvent())
-      )
+      dispatch(setMetadataEvent(metadataController.getEmptyMetadataEvent()))
 
       // clear authToken saved in local storage
       clearAuthToken()
diff --git a/src/pages/create/index.tsx b/src/pages/create/index.tsx
index 764bff6..78f604a 100644
--- a/src/pages/create/index.tsx
+++ b/src/pages/create/index.tsx
@@ -18,20 +18,24 @@ import {
   Tooltip,
   Typography
 } from '@mui/material'
+import JSZip from 'jszip'
 import { MuiFileInput } from 'mui-file-input'
 import { useEffect, useState } from 'react'
-import { Link, useNavigate } from 'react-router-dom'
+import { useSelector } from 'react-redux'
+import { useNavigate } from 'react-router-dom'
+import { toast } from 'react-toastify'
 import { LoadingSpinner } from '../../components/LoadingSpinner'
+import { UserComponent } from '../../components/username'
 import { MetadataController, NostrController } from '../../controllers'
-import { appPrivateRoutes, getProfileRoute } from '../../routes'
-import { ProfileMetadata, User, UserRole } from '../../types'
+import { appPrivateRoutes } from '../../routes'
+import { State } from '../../store/rootReducer'
+import { Meta, ProfileMetadata, User, UserRole } from '../../types'
 import {
   encryptArrayBuffer,
   generateEncryptionKey,
   getHash,
-  getRoboHashPicture,
   hexToNpub,
-  pubToHex,
+  npubToHex,
   queryNip05,
   sendDM,
   shorten,
@@ -39,10 +43,6 @@ import {
   uploadToFileStorage
 } from '../../utils'
 import styles from './style.module.scss'
-import { toast } from 'react-toastify'
-import JSZip from 'jszip'
-import { useSelector } from 'react-redux'
-import { State } from '../../store/rootReducer'
 
 export const CreatePage = () => {
   const navigate = useNavigate()
@@ -109,7 +109,7 @@ export const CreatePage = () => {
     }
 
     if (userInput.startsWith('npub')) {
-      const pubkey = await pubToHex(userInput)
+      const pubkey = npubToHex(userInput)
       if (pubkey) {
         addUser(pubkey)
         setUserInput('')
@@ -246,13 +246,13 @@ export const CreatePage = () => {
     if (!signedEvent) return
 
     // create content for meta file
-    const meta = {
-      signers: signers.map((signer) => signer.pubkey),
-      viewers: viewers.map((viewer) => viewer.pubkey),
+    const meta: Meta = {
+      signers: signers.map((signer) => hexToNpub(signer.pubkey)),
+      viewers: viewers.map((viewer) => hexToNpub(viewer.pubkey)),
       fileHashes,
-      submittedBy: usersPubkey,
+      submittedBy: hexToNpub(usersPubkey!),
       signedEvents: {
-        [signedEvent.pubkey]: JSON.stringify(signedEvent, null, 2)
+        [hexToNpub(signedEvent.pubkey)]: JSON.stringify(signedEvent, null, 2)
       }
     }
 
@@ -489,15 +489,6 @@ const DisplayUser = ({
     })
   }, [users])
 
-  /**
-   * Use robohash if any of the users images fail to load
-   * @param event img tag onError event
-   * @param pubkey of the user
-   */
-  const imageLoadError = (event: any, pubkey: string) => {
-    event.target.src = getRoboHashPicture(pubkey)
-  }
-
   return (
     <TableContainer component={Paper} elevation={3} sx={{ marginTop: '20px' }}>
       <Table>
@@ -511,31 +502,18 @@ const DisplayUser = ({
         <TableBody>
           {users.map((user, index) => {
             const userMeta = metadata[user.pubkey]
-            const npub = hexToNpub(user.pubkey)
-            const roboUrl = `https://robohash.org/${npub}.png?set=set3`
             return (
               <TableRow key={index}>
                 <TableCell className={styles.tableCell}>
-                  <Box className={styles.user}>
-                    <img
-                      onError={(event) => {imageLoadError(event, user.pubkey)}}
-                      src={userMeta?.picture || roboUrl}
-                      alt="Profile Image"
-                      className="profile-image"
-                      style={{
-                        borderWidth: '3px',
-                        borderStyle: 'solid',
-                        borderColor: `#${user.pubkey.substring(0, 6)}`
-                      }}
-                    />
-                    <Link to={getProfileRoute(user.pubkey)}>
-                      <Typography component="label" className={styles.name}>
-                        {userMeta?.display_name ||
-                          userMeta?.name ||
-                          shorten(npub)}
-                      </Typography>
-                    </Link>
-                  </Box>
+                  <UserComponent
+                    pubkey={user.pubkey}
+                    name={
+                      userMeta?.display_name ||
+                      userMeta?.name ||
+                      shorten(hexToNpub(user.pubkey))
+                    }
+                    image={userMeta?.picture}
+                  />
                 </TableCell>
                 <TableCell className={styles.tableCell}>
                   <Select
diff --git a/src/pages/login/index.tsx b/src/pages/login/index.tsx
index d05edb8..7dd91d3 100644
--- a/src/pages/login/index.tsx
+++ b/src/pages/login/index.tsx
@@ -18,7 +18,7 @@ import {
 } from '../../store/actions'
 import { LoginMethods } from '../../store/auth/types'
 import { Dispatch } from '../../store/store'
-import { pubToHex, queryNip05 } from '../../utils'
+import { npubToHex, queryNip05 } from '../../utils'
 import styles from './style.module.scss'
 
 export const Login = () => {
@@ -213,7 +213,7 @@ export const Login = () => {
     const keyEndIndex = inputValue.indexOf('?relay=')
     const key = inputValue.substring(keyStartIndex, keyEndIndex)
 
-    const pubkey = await pubToHex(key)
+    const pubkey = npubToHex(key)
 
     if (!pubkey) {
       toast.error('Invalid pubkey in bunker connection string.')
diff --git a/src/pages/sign/index.tsx b/src/pages/sign/index.tsx
index e331521..b5bacee 100644
--- a/src/pages/sign/index.tsx
+++ b/src/pages/sign/index.tsx
@@ -21,12 +21,12 @@ import { MuiFileInput } from 'mui-file-input'
 import { EventTemplate } from 'nostr-tools'
 import { useEffect, useState } from 'react'
 import { useSelector } from 'react-redux'
-import { Link, useNavigate, useSearchParams } from 'react-router-dom'
+import { useNavigate, useSearchParams } from 'react-router-dom'
 import { toast } from 'react-toastify'
-import placeholderAvatar from '../../assets/images/nostr-logo.jpg'
 import { LoadingSpinner } from '../../components/LoadingSpinner'
+import { UserComponent } from '../../components/username'
 import { MetadataController, NostrController } from '../../controllers'
-import { appPrivateRoutes, getProfileRoute } from '../../routes'
+import { appPrivateRoutes } from '../../routes'
 import { State } from '../../store/rootReducer'
 import { Meta, ProfileMetadata, User, UserRole } from '../../types'
 import {
@@ -36,6 +36,7 @@ import {
   getHash,
   hexToNpub,
   parseJson,
+  npubToHex,
   readContentOfZipEntry,
   sendDM,
   shorten,
@@ -88,9 +89,13 @@ export const SignPage = () => {
         } else {
           for (const signer of meta.signers) {
             if (!signedBy.includes(signer)) {
-              setNextSinger(signer)
+              // signers in meta.json are in npub1 format
+              // so, convert it to hex before setting to nextSigner
+              setNextSinger(npubToHex(signer)!)
 
-              if (signer === usersPubkey) {
+              const usersNpub = hexToNpub(usersPubkey!)
+
+              if (signer === usersNpub) {
                 // logged in user is the next signer
                 setSignedStatus(SignedStatus.User_Is_Next_Signer)
               } else {
@@ -287,7 +292,7 @@ export const SignPage = () => {
 
     metaCopy.signedEvents = {
       ...metaCopy.signedEvents,
-      [signedEvent.pubkey]: JSON.stringify(signedEvent, null, 2)
+      [hexToNpub(signedEvent.pubkey)]: JSON.stringify(signedEvent, null, 2)
     }
 
     const stringifiedMeta = JSON.stringify(metaCopy, null, 2)
@@ -320,13 +325,10 @@ export const SignPage = () => {
 
     if (!arrayBuffer) return
 
-    const encryptionKey = await generateEncryptionKey()
+    const key = await generateEncryptionKey()
 
     setLoadingSpinnerDesc('Encrypting zip file')
-    const encryptedArrayBuffer = await encryptArrayBuffer(
-      arrayBuffer,
-      encryptionKey
-    )
+    const encryptedArrayBuffer = await encryptArrayBuffer(arrayBuffer, key)
 
     const blob = new Blob([encryptedArrayBuffer])
 
@@ -346,13 +348,14 @@ export const SignPage = () => {
     if (!fileUrl) return
 
     // check if the current user is the last signer
+    const usersNpub = hexToNpub(usersPubkey!)
     const lastSignerIndex = meta.signers.length - 1
-    const signerIndex = meta.signers.indexOf(usersPubkey!)
+    const signerIndex = meta.signers.indexOf(usersNpub)
     const isLastSigner = signerIndex === lastSignerIndex
 
     // if current user is the last signer, then send DMs to all signers and viewers
     if (isLastSigner) {
-      const userSet = new Set<string>()
+      const userSet = new Set<`npub1${string}`>()
 
       userSet.add(meta.submittedBy)
 
@@ -370,27 +373,19 @@ export const SignPage = () => {
         // todo: execute in parallel
         await sendDM(
           fileUrl,
-          encryptionKey,
-          user,
+          key,
+          npubToHex(user)!,
           nostrController,
           false,
           setAuthUrl
         )
       }
-
-      // when user is the last signer and has sent
-      // the final document to all the signers and viewers
-      // update search params with updated file url and encryption key
-      setSearchParams({
-        file: fileUrl,
-        key: encryptionKey
-      })
     } else {
       const nextSigner = meta.signers[signerIndex + 1]
       await sendDM(
         fileUrl,
-        encryptionKey,
-        nextSigner,
+        key,
+        npubToHex(nextSigner)!,
         nostrController,
         false,
         setAuthUrl
@@ -398,15 +393,22 @@ export const SignPage = () => {
     }
 
     setIsLoading(false)
+
+    // update search params with updated file url and encryption key
+    setSearchParams({
+      file: fileUrl,
+      key: key
+    })
   }
 
   const handleExport = async () => {
     if (!meta || !zip || !usersPubkey) return
 
+    const usersNpub = hexToNpub(usersPubkey)
     if (
-      !meta.signers.includes(usersPubkey) &&
-      !meta.viewers.includes(usersPubkey) &&
-      meta.submittedBy !== usersPubkey
+      !meta.signers.includes(usersNpub) &&
+      !meta.viewers.includes(usersNpub) &&
+      meta.submittedBy !== usersNpub
     )
       return
 
@@ -563,13 +565,14 @@ const DisplayMeta = ({ meta, nextSigner }: DisplayMetaProps) => {
 
   useEffect(() => {
     meta.signers.forEach((signer) => {
+      const hexKey = npubToHex(signer)
       setUsers((prev) => {
-        if (prev.findIndex((user) => user.pubkey === signer) !== -1) return prev
+        if (prev.findIndex((user) => user.pubkey === hexKey) !== -1) return prev
 
         return [
           ...prev,
           {
-            pubkey: signer,
+            pubkey: hexKey!,
             role: UserRole.signer
           }
         ]
@@ -577,13 +580,14 @@ const DisplayMeta = ({ meta, nextSigner }: DisplayMetaProps) => {
     })
 
     meta.viewers.forEach((viewer) => {
+      const hexKey = npubToHex(viewer)
       setUsers((prev) => {
-        if (prev.findIndex((user) => user.pubkey === viewer) !== -1) return prev
+        if (prev.findIndex((user) => user.pubkey === hexKey) !== -1) return prev
 
         return [
           ...prev,
           {
-            pubkey: viewer,
+            pubkey: hexKey!,
             role: UserRole.viewer
           }
         ]
@@ -594,56 +598,32 @@ const DisplayMeta = ({ meta, nextSigner }: DisplayMetaProps) => {
   useEffect(() => {
     const metadataController = new MetadataController()
 
-    metadataController
-      .findMetadata(meta.submittedBy)
-      .then((metadataEvent) => {
-        const metadataContent =
-          metadataController.extractProfileMetadataContent(metadataEvent)
-        if (metadataContent)
-          setMetadata((prev) => ({
-            ...prev,
-            [meta.submittedBy]: metadataContent
-          }))
-      })
-      .catch((err) => {
-        console.error(
-          `error occurred in finding metadata for: ${meta.submittedBy}`,
-          err
-        )
-      })
+    const hexKeys: string[] = [
+      npubToHex(meta.submittedBy)!,
+      ...users.map((user) => user.pubkey)
+    ]
 
-    users.forEach((user) => {
-      if (!(user.pubkey in metadata)) {
+    hexKeys.forEach((key) => {
+      if (!(key in metadata)) {
         metadataController
-          .findMetadata(user.pubkey)
+          .findMetadata(key)
           .then((metadataEvent) => {
             const metadataContent =
               metadataController.extractProfileMetadataContent(metadataEvent)
+
             if (metadataContent)
               setMetadata((prev) => ({
                 ...prev,
-                [user.pubkey]: metadataContent
+                [key]: metadataContent
               }))
           })
           .catch((err) => {
-            console.error(
-              `error occurred in finding metadata for: ${user.pubkey}`,
-              err
-            )
+            console.error(`error occurred in finding metadata for: ${key}`, err)
           })
       }
     })
   }, [users, meta.submittedBy])
 
-  const imageLoadError = (event: any) => {
-    event.target.src = placeholderAvatar
-  }
-
-  const getRoboImageUrl = (pubkey: string) => {
-    const npub = hexToNpub(pubkey)
-    return `https://robohash.org/${npub}.png?set=set3`
-  }
-
   return (
     <List
       sx={{
@@ -673,29 +653,21 @@ const DisplayMeta = ({ meta, nextSigner }: DisplayMetaProps) => {
         <Typography variant="h6" sx={{ color: textColor }}>
           Submitted By
         </Typography>
-        <Box className={styles.user}>
-          <img
-            onError={imageLoadError}
-            src={
-              metadata[meta.submittedBy]?.picture ||
-              getRoboImageUrl(meta.submittedBy)
-            }
-            alt="Profile Image"
-            className="profile-image"
-            style={{
-              borderWidth: '3px',
-              borderStyle: 'solid',
-              borderColor: `#${meta.submittedBy.substring(0, 6)}`
-            }}
-          />
-          <Link to={getProfileRoute(meta.submittedBy)}>
-            <Typography component="label" className={styles.name}>
-              {metadata[meta.submittedBy]?.display_name ||
-                metadata[meta.submittedBy]?.name ||
-                shorten(hexToNpub(meta.submittedBy))}
-            </Typography>
-          </Link>
-        </Box>
+        {(function () {
+          const pubkey = npubToHex(meta.submittedBy)
+          const profile = metadata[pubkey!]
+          return (
+            <UserComponent
+              pubkey={pubkey!}
+              name={
+                profile?.display_name ||
+                profile?.name ||
+                shorten(meta.submittedBy)
+              }
+              image={metadata[meta.submittedBy]?.picture}
+            />
+          )
+        })()}
       </ListItem>
       <ListItem
         sx={{
@@ -727,14 +699,13 @@ const DisplayMeta = ({ meta, nextSigner }: DisplayMetaProps) => {
           <TableBody>
             {users.map((user, index) => {
               const userMeta = metadata[user.pubkey]
-              const npub = hexToNpub(user.pubkey)
-              const roboUrl = `https://robohash.org/${npub}.png?set=set3`
 
               let signedStatus = '-'
 
               if (user.role === UserRole.signer) {
                 // check if user has signed the document
-                if (user.pubkey in meta.signedEvents) {
+                const usersNpub = hexToNpub(user.pubkey)
+                if (usersNpub in meta.signedEvents) {
                   signedStatus = 'Signed'
                 }
                 // check if user is the next signer
@@ -746,26 +717,15 @@ const DisplayMeta = ({ meta, nextSigner }: DisplayMetaProps) => {
               return (
                 <TableRow key={index}>
                   <TableCell className={styles.tableCell}>
-                    <Box className={styles.user}>
-                      <img
-                        onError={imageLoadError}
-                        src={userMeta?.picture || roboUrl}
-                        alt="Profile Image"
-                        className="profile-image"
-                        style={{
-                          borderWidth: '3px',
-                          borderStyle: 'solid',
-                          borderColor: `#${user.pubkey.substring(0, 6)}`
-                        }}
-                      />
-                      <Link to={getProfileRoute(user.pubkey)}>
-                        <Typography component="label" className={styles.name}>
-                          {userMeta?.display_name ||
-                            userMeta?.name ||
-                            shorten(npub)}
-                        </Typography>
-                      </Link>
-                    </Box>
+                    <UserComponent
+                      pubkey={user.pubkey}
+                      name={
+                        userMeta?.display_name ||
+                        userMeta?.name ||
+                        shorten(hexToNpub(user.pubkey))
+                      }
+                      image={userMeta?.picture}
+                    />
                   </TableCell>
                   <TableCell className={styles.tableCell}>
                     {user.role}
diff --git a/src/pages/verify/index.tsx b/src/pages/verify/index.tsx
index 3c503bf..6f8b9e1 100644
--- a/src/pages/verify/index.tsx
+++ b/src/pages/verify/index.tsx
@@ -9,22 +9,21 @@ import {
 } from '@mui/material'
 import JSZip from 'jszip'
 import { MuiFileInput } from 'mui-file-input'
+import { Event, verifyEvent } from 'nostr-tools'
 import { useEffect, useState } from 'react'
-import { Link } from 'react-router-dom'
 import { toast } from 'react-toastify'
 import { LoadingSpinner } from '../../components/LoadingSpinner'
+import { UserComponent } from '../../components/username'
 import { MetadataController } from '../../controllers'
-import { getProfileRoute } from '../../routes'
 import { Meta, ProfileMetadata } from '../../types'
 import {
-  getRoboHashPicture,
   hexToNpub,
+  npubToHex,
   parseJson,
   readContentOfZipEntry,
   shorten
 } from '../../utils'
 import styles from './style.module.scss'
-import { Event, verifyEvent } from 'nostr-tools'
 
 export const VerifyPage = () => {
   const theme = useTheme()
@@ -50,16 +49,18 @@ export const VerifyPage = () => {
       const users = [meta.submittedBy, ...meta.signers, ...meta.viewers]
 
       users.forEach((user) => {
-        if (!(user in metadata)) {
+        const pubkey = npubToHex(user)!
+
+        if (!(pubkey in metadata)) {
           metadataController
-            .findMetadata(user)
+            .findMetadata(pubkey)
             .then((metadataEvent) => {
               const metadataContent =
                 metadataController.extractProfileMetadataContent(metadataEvent)
               if (metadataContent)
                 setMetadata((prev) => ({
                   ...prev,
-                  [user]: metadataContent
+                  [pubkey]: metadataContent
                 }))
             })
             .catch((err) => {
@@ -113,22 +114,14 @@ export const VerifyPage = () => {
     setIsLoading(false)
   }
 
-  const imageLoadError = (event: any, pubkey: string) => {
-    const npub = hexToNpub(pubkey)
-    event.target.src = getRoboImageUrl(npub)
-  }
-
-  const getRoboImageUrl = (pubkey: string) => {
-    return getRoboHashPicture(pubkey)
-  }
-
   const displayUser = (pubkey: string, verifySignature = false) => {
     const profile = metadata[pubkey]
 
     let isValidSignature = false
 
     if (verifySignature) {
-      const signedEventString = meta ? meta.signedEvents[pubkey] : null
+      const npub = hexToNpub(pubkey)
+      const signedEventString = meta ? meta.signedEvents[npub] : null
       if (signedEventString) {
         try {
           const signedEvent = JSON.parse(signedEventString)
@@ -143,31 +136,28 @@ export const VerifyPage = () => {
     }
 
     return (
-      <Box className={styles.user}>
-        <img
-          onError={(event) => {imageLoadError(event, pubkey)}}
-          src={profile?.picture || getRoboImageUrl(pubkey)}
-          alt="Profile Image"
-          className="profile-image"
-          style={{
-            borderWidth: '3px',
-            borderStyle: 'solid',
-            borderColor: `#${pubkey.substring(0, 6)}`
-          }}
+      <>
+        <UserComponent
+          pubkey={pubkey}
+          name={
+            profile?.display_name || profile?.name || shorten(hexToNpub(pubkey))
+          }
+          image={profile?.picture}
         />
-        <Link to={getProfileRoute(pubkey)}>
-          <Typography component="label" className={styles.name}>
-            {profile?.display_name ||
-              profile?.name ||
-              shorten(hexToNpub(pubkey))}
-          </Typography>
-        </Link>
+
         {verifySignature && (
-          <Typography component="label">
-            ({isValidSignature ? 'Valid' : 'Not Valid'} Signature)
+          <Typography
+            component="label"
+            sx={{
+              color: isValidSignature
+                ? theme.palette.text.primary
+                : theme.palette.error.main
+            }}
+          >
+            ({isValidSignature ? 'Valid' : 'Invalid'} Signature)
           </Typography>
         )}
-      </Box>
+      </>
     )
   }
 
@@ -248,7 +238,7 @@ export const VerifyPage = () => {
                 <Typography variant="h6" sx={{ color: textColor }}>
                   Submitted By
                 </Typography>
-                {displayUser(meta.submittedBy)}
+                {displayUser(npubToHex(meta.submittedBy)!)}
               </ListItem>
 
               <ListItem
@@ -276,8 +266,16 @@ export const VerifyPage = () => {
                   </Typography>
                   <ul className={styles.usersList}>
                     {meta.signers.map((signer) => (
-                      <li key={signer} style={{ color: textColor }}>
-                        {displayUser(signer, true)}
+                      <li
+                        key={signer}
+                        style={{
+                          color: textColor,
+                          display: 'flex',
+                          alignItems: 'center',
+                          gap: '15px'
+                        }}
+                      >
+                        {displayUser(npubToHex(signer)!, true)}
                       </li>
                     ))}
                   </ul>
@@ -298,7 +296,7 @@ export const VerifyPage = () => {
                   <ul className={styles.usersList}>
                     {meta.viewers.map((viewer) => (
                       <li key={viewer} style={{ color: textColor }}>
-                        {displayUser(viewer)}
+                        {displayUser(npubToHex(viewer)!)}
                       </li>
                     ))}
                   </ul>
diff --git a/src/types/core.ts b/src/types/core.ts
index a328ac0..4ce1bcb 100644
--- a/src/types/core.ts
+++ b/src/types/core.ts
@@ -9,10 +9,10 @@ export interface User {
 }
 
 export interface Meta {
-  signers: string[]
-  viewers: string[]
+  signers: `npub1${string}`[]
+  viewers: `npub1${string}`[]
   fileHashes: { [key: string]: string }
-  submittedBy: string
-  signedEvents: { [key: string]: string }
+  submittedBy: `npub1${string}`
+  signedEvents: { [key: `npub1${string}`]: string }
   exportSignature?: string
 }
diff --git a/src/utils/nostr.ts b/src/utils/nostr.ts
index a39502f..3a62414 100644
--- a/src/utils/nostr.ts
+++ b/src/utils/nostr.ts
@@ -17,21 +17,21 @@ const validateHex = (hexKey: string) => {
  * @param pubKey in NPUB, HEX format
  * @returns HEX format
  */
-export const pubToHex = async (pubKey: string): Promise<string | null> => {
+export const npubToHex = (pubKey: string): string | null => {
   // If key is NPUB
-  if (pubKey.startsWith('npub')) {
+  if (pubKey.startsWith('npub1')) {
     try {
       return nip19.decode(pubKey).data as string
     } catch (error) {
-      return Promise.resolve(null)
+      return null
     }
   }
 
   // valid hex key
-  if (validateHex(pubKey)) return Promise.resolve(pubKey)
+  if (validateHex(pubKey)) return pubKey
 
   // Not a valid hex key
-  return Promise.resolve(null)
+  return null
 }
 
 /**
@@ -56,9 +56,8 @@ export const nsecToHex = (nsec: string): string | null => {
   return null
 }
 
-export const hexToNpub = (hexPubkey: string | undefined): string => {
-  if (!hexPubkey) return 'n/a'
-  if (hexPubkey.includes('npub')) return hexPubkey
+export const hexToNpub = (hexPubkey: string): `npub1${string}` => {
+  if (hexPubkey.startsWith('npub1')) return hexPubkey as `npub1${string}`
 
   return nip19.npubEncode(hexPubkey)
 }
@@ -141,8 +140,7 @@ export const base64DecodeAuthToken = (authToken: string): SignedEvent => {
 }
 
 /**
- * 
- * @param pubkey in hex or npub format 
+ * @param pubkey in hex or npub format
  * @returns robohash.org url for the avatar
  */
 export const getRoboHashPicture = (pubkey: string): string => {