diff --git a/index.html b/index.html
index eae944b..9fe2c91 100644
--- a/index.html
+++ b/index.html
@@ -65,7 +65,6 @@
     </sm-popup>
     <script src="scripts/components.min.js"></script>
     <script src="https://unpkg.com/uhtml@3.0.1/es.js"></script>
-    <script src="scripts/octokit.js" type="module"></script>
     <script>
         const { html, svg, render: renderElem } = uhtml;
         const uiGlobals = {}
@@ -119,7 +118,7 @@
             }
         })
         //Function for displaying toast notifications. pass in error for mode param if you want to show an error.
-        function notify(message, mode, options = {}) {
+        function notify(message, mode, options = { timeout, pinned }) {
             let icon
             switch (mode) {
                 case 'success':
@@ -127,7 +126,7 @@
                     break;
                 case 'error':
                     icon = `<svg class="icon icon--error" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24"><path fill="none" d="M0 0h24v24H0z"/><path d="M12 22C6.477 22 2 17.523 2 12S6.477 2 12 2s10 4.477 10 10-4.477 10-10 10zm-1-7v2h2v-2h-2zm0-8v6h2V7h-2z"/></svg>`
-                    if (typeof options.pinned === 'undefined')
+                    if (!options.hasOwnProperty('timeout'))
                         options.pinned = true
                     break;
             }
@@ -329,17 +328,32 @@
                 if (!page)
                     page = 'home'
                 const preventDownloadInfoPopup = localStorage.getItem('dontShowDownloadInfo')
-                if (preventDownloadInfoPopup === null)
-                    document.querySelectorAll('.dapp-download-button').forEach(elem => {
-                        elem.onclick = (e) => openPopup('download_info_popup')
-                    })
+                document.querySelectorAll('.dapp-download-button').forEach(elem => {
+                    elem.onclick = (e) => {
+                        e.preventDefault()
+                        // check dapp hash before downloading and show error if hash doesn't match
+                        const { hash: knownHash, appLink } = elem.closest('.dapp-card').dataset;
+                        getRepoHash(appLink.split('/').pop()).then(latestHash => {
+                            if (latestHash !== knownHash) {
+                                notify(`The dapp you are trying to download has been modified. Dapp won't be downloaded.`, 'error')
+                            } else {
+                                if (preventDownloadInfoPopup === null || preventDownloadInfoPopup === 'false')
+                                    openPopup('download_info_popup')
+                                // initiate download
+                                window.location.href = elem.href
+                            }
+                        }).catch(e => {
+                            console.error(e)
+                            notify('There was an error while trying to download the dapp. Please try again later.', 'error', {
+                                timeout: 10000,
+                            })
+                        })
+                    }
+                })
             }
         })
         function dontShowInfoAgain() {
             localStorage.setItem('dontShowDownloadInfo', true);
-            document.querySelectorAll('.dapp-download-button').forEach(elem => {
-                elem.onclick = null
-            })
             closePopup()
         }
         window.addEventListener('load', () => {
@@ -359,149 +373,226 @@
                 <h1>Page not found</h1>
             `)
         })
-        const dappsList = [
+        let dappsList = [
             {
-                name: 'Messenger',
-                description: 'Chat with your Bitcoin, Ethereum and FLO friends or use Bitcoin and FLO multisig.',
-                icon: ``,
-                appLink: 'https://ranchimall.github.io/messenger',
-                moreLink: '#/dapps/messenger',
-                tags: ['messenger', 'chat', 'bitcoin', 'ethereum', 'flo', 'multisig'],
-                category: 'social'
+                "name": "BTC Mortgage",
+                "description": "Borrow or Lend USD against Bitcoin",
+                "icon": "",
+                "appLink": "https://ranchimall.github.io/btcmortgage",
+                "moreLink": "#/dapps/btc-mortgage",
+                "tags": [
+                    "bitcoin",
+                    "mortgage",
+                    "lend",
+                    "borrow"
+                ],
+                "category": "finance",
+                "hash": "197f0c491e8cabf866603d03c437f9b96ad5b58ce55de2f6bc0d39a633fdf5e1"
             },
             {
-                name: 'FLO Wallet',
-                description: 'A wallet for FLO',
-                icon: ``,
-                appLink: 'https://ranchimall.github.io/flowallet',
-                moreLink: '#/dapps/flo-wallet',
-                tags: ['flo', 'wallet'],
-                category: 'wallet'
+                "name": "BTC Wallet",
+                "description": "Send and receive Bitcoin and track transactions.",
+                "icon": "",
+                "appLink": "https://ranchimall.github.io/btcwallet",
+                "moreLink": "#/dapps/btc-wallet",
+                "tags": [
+                    "bitcoin",
+                    "wallet"
+                ],
+                "category": "wallet",
+                "hash": "20f12011d57e157e24b6388b3bb5d7f5970880babe99947dcf50749e08299cc0"
             },
             {
-                name: 'FLO Scout',
-                description: 'Track FLO token transactions and utilize smart contracts.',
-                icon: ``,
-                appLink: 'https://ranchimall.github.io/floscout',
-                moreLink: '#/dapps/flo-scout',
-                tags: ['flo', 'scout', 'smart contracts'],
-                category: 'blockchain-explorer'
+                "name": "Certify",
+                "description": "Create and distribute blockchain based certificates",
+                "icon": "",
+                "appLink": "https://ranchimall.github.io/certify",
+                "moreLink": "#/dapps/certify",
+                "tags": [
+                    "certificates",
+                    "certify",
+                    "certification"
+                ],
+                "category": "identity",
+                "hash": "99f2b66dcd62b2156b4f64cd4eab8a4efc182284fe13cdb8e2a9876d865c0123"
             },
             {
-                name: 'BTC Wallet',
-                description: 'Send and receive Bitcoin and track transactions.',
-                icon: ``,
-                appLink: 'https://ranchimall.github.io/btcwallet',
-                moreLink: '#/dapps/btc-wallet',
-                tags: ['bitcoin', 'wallet'],
-                category: 'wallet'
+                "name": "Content Collaboration",
+                "description": "A writing app that allows you to collaborate with others",
+                "icon": "",
+                "appLink": "https://ranchimall.github.io/cc",
+                "moreLink": "#/dapps/content-collaboration",
+                "tags": [
+                    "collaboration",
+                    "writing",
+                    "content"
+                ],
+                "category": "content",
+                "hash": "debdda5bd18f0f4d06876967de5f6dd55f514b9048ec978d435acdbe720a5ff8"
             },
             {
-                name: 'Taproot wallet',
-                description: 'A Bitcoin wallet with Taproot support.',
-                icon: ``,
-                appLink: 'https://ranchimall.github.io/taprootwallet',
-                moreLink: '#/dapps/taproot-wallet',
-                tags: ['bitcoin', 'wallet', 'taproot'],
-                category: 'wallet'
+                "name": "Exchange",
+                "description": "Trade FLO and FLO tokens with rupee tokens",
+                "icon": "",
+                "appLink": "https://ranchimall.github.io/exchangemarket",
+                "moreLink": "#/dapps/exchange",
+                "tags": [
+                    "exchange",
+                    "trade",
+                    "flo",
+                    "rupee"
+                ],
+                "category": "finance",
+                "hash": "a5dbba6043d82ae04e99a8a522f4ab2d1ba2a2779cdcf4f28c1da2b2acf11df6"
             },
             {
-                name: 'FLO Ethereum',
-                description: 'A Ethereum wallet that works with FLO',
-                icon: ``,
-                appLink: 'https://ranchimall.github.io/floethereum',
-                moreLink: '#/dapps/flo-ethereum',
-                tags: ['ethereum', 'wallet', 'flo'],
-                category: 'wallet'
+                "name": "FLO Ethereum",
+                "description": "A Ethereum wallet that works with FLO",
+                "icon": "",
+                "appLink": "https://ranchimall.github.io/floethereum",
+                "moreLink": "#/dapps/flo-ethereum",
+                "tags": [
+                    "ethereum",
+                    "wallet",
+                    "flo"
+                ],
+                "category": "wallet",
+                "hash": "6e647729eb0f179045f764d08c44d61178bb84e36e327d026c34a701a9875132"
             },
             {
-                name: 'KYC',
-                description: 'An app to verify your identity',
-                icon: ``,
-                appLink: 'https://ranchimall.github.io/kyc',
-                moreLink: '#/dapps/kyc',
-                tags: ['kyc', 'identity'],
-                category: 'identity'
+                "name": "FLO Scout",
+                "description": "Track FLO token transactions and utilize smart contracts.",
+                "icon": "",
+                "appLink": "https://ranchimall.github.io/floscout",
+                "moreLink": "#/dapps/flo-scout",
+                "tags": [
+                    "flo",
+                    "scout",
+                    "smart contracts"
+                ],
+                "category": "blockchain-explorer",
+                "hash": "cb84c51f35d03e224b4a76d1a27dd19a75f4ac9b785e059696c16206557cfee3"
             },
             {
-                name: 'BTC Mortgage',
-                description: 'Borrow or Lend USD against Bitcoin',
-                icon: ``,
-                appLink: 'https://ranchimall.github.io/btcmortgage',
-                moreLink: '#/dapps/btc-mortgage',
-                tags: ['bitcoin', 'mortgage', 'lend', 'borrow'],
-                category: 'finance'
+                "name": "FLO Wallet",
+                "description": "A wallet for FLO",
+                "icon": "",
+                "appLink": "https://ranchimall.github.io/flowallet",
+                "moreLink": "#/dapps/flo-wallet",
+                "tags": [
+                    "flo",
+                    "wallet"
+                ],
+                "category": "wallet",
+                "hash": "a6ba8112b57a033cc0124aa3f1761e27b2066226b6604d035e8596d2c662b6b6"
             },
             {
-                name: 'FLOpay',
-                description: 'A rupee token payments app based on FLO',
-                icon: ``,
-                appLink: 'https://ranchimall.github.io/flopay',
-                moreLink: '#/dapps/flopay',
-                tags: ['flo', 'payments', 'rupee'],
-                category: 'wallet'
+                "name": "FLOpay",
+                "description": "A rupee token payments app based on FLO",
+                "icon": "",
+                "appLink": "https://ranchimall.github.io/flopay",
+                "moreLink": "#/dapps/flopay",
+                "tags": [
+                    "flo",
+                    "payments",
+                    "rupee"
+                ],
+                "category": "wallet",
+                "hash": "8cc4313d43468138f26cf13a776876fc21560714d8e5eb1217599af585105a8f"
             },
             {
-                name: 'Content Collaboration',
-                description: 'A writing app that allows you to collaborate with others',
-                icon: ``,
-                appLink: 'https://ranchimall.github.io/cc',
-                moreLink: '#/dapps/content-collaboration',
-                tags: ['collaboration', 'writing', 'content'],
-                category: 'content'
+                "name": "KYC",
+                "description": "An app to verify your identity",
+                "icon": "",
+                "appLink": "https://ranchimall.github.io/kyc",
+                "moreLink": "#/dapps/kyc",
+                "tags": [
+                    "kyc",
+                    "identity"
+                ],
+                "category": "identity",
+                "hash": "247423654e501dab943296ab9a55e60bf4204164aee469f401cecf0b53290671"
             },
             {
-                name: 'RIBC',
-                description: 'RanchiMall Internship Blockchain Contract (RIBC) allows you hire and manage interns.',
-                icon: ``,
-                appLink: 'https://ranchimall.github.io/ribc',
-                moreLink: '#/dapps/ribc',
-                tags: ['internship', 'contract', 'ribc'],
-                category: 'management'
+                "name": "LogSheet",
+                "description": "Create and manage public and private log sheets",
+                "icon": "",
+                "appLink": "https://ranchimall.github.io/flologsheet",
+                "moreLink": "#/dapps/log-sheet",
+                "tags": [
+                    "log",
+                    "sheet",
+                    "logsheets"
+                ],
+                "category": "content",
+                "hash": "5c04711bbeaede85010e26d281a0a246a6f7f104e07a7bfcc5bc5208908647b6"
             },
             {
-                name: 'LogSheet',
-                description: 'Create and manage public and private log sheets',
-                icon: ``,
-                appLink: 'https://ranchimall.github.io/logsheet',
-                moreLink: '#/dapps/log-sheet',
-                tags: ['log', 'sheet', 'logsheets'],
-                category: 'content'
+                "name": "Messenger",
+                "description": "Chat with your Bitcoin, Ethereum and FLO friends or use Bitcoin and FLO multisig.",
+                "icon": "",
+                "appLink": "https://ranchimall.github.io/messenger",
+                "moreLink": "#/dapps/messenger",
+                "tags": [
+                    "messenger",
+                    "chat",
+                    "bitcoin",
+                    "ethereum",
+                    "flo",
+                    "multisig"
+                ],
+                "category": "social",
+                "hash": "8713c516c826f10a5258a0962c87e3a26bd54f25d9034d7d2b7dbb7a33e4e914"
             },
             {
-                name: 'Exchange',
-                description: 'Trade FLO and FLO tokens with rupee tokens',
-                icon: ``,
-                appLink: 'https://ranchimall.github.io/exchangemarket',
-                moreLink: '#/dapps/exchange',
-                tags: ['exchange', 'trade', 'flo', 'rupee'],
-                category: 'finance'
+                "name": "RanchiMall Times",
+                "description": "A news app that showcases articles created with Content Collaboration app",
+                "icon": "",
+                "appLink": "https://ranchimall.github.io/rmtimes",
+                "moreLink": "#/dapps/ranchimall-times",
+                "tags": [
+                    "news",
+                    "articles",
+                    "content"
+                ],
+                "category": "content",
+                "hash": "840823abe525a8be560d58e45af2499de6f45eaf973ce69a500b1df31ca295be"
             },
             {
-                name: 'RanchiMall Times',
-                description: 'A news app that showcases articles created with Content Collaboration app',
-                icon: ``,
-                appLink: 'https://ranchimall.github.io/rmtimes',
-                moreLink: '#/dapps/ranchimall-times',
-                tags: ['news', 'articles', 'content'],
-                category: 'content'
+                "name": "RIBC",
+                "description": "RanchiMall Internship Blockchain Contract (RIBC) allows you hire and manage interns.",
+                "icon": "",
+                "appLink": "https://ranchimall.github.io/ribc",
+                "moreLink": "#/dapps/ribc",
+                "tags": [
+                    "internship",
+                    "contract",
+                    "ribc"
+                ],
+                "category": "management",
+                "hash": "9e0e44c5d50d7a0f28fb0f8ac4a168b5a1ec93a6e29e41503e1a6a579c567ed8"
             },
             {
-                name: 'Certify',
-                description: 'Create and distribute blockchain based certificates',
-                icon: ``,
-                appLink: 'https://ranchimall.github.io/certify',
-                moreLink: '#/dapps/certify',
-                tags: ['certificates', 'certify', 'certification'],
-                category: 'identity'
-            },
-        ].sort((a, b) => a.name.localeCompare(b.name))
+                "name": "Taproot wallet",
+                "description": "A Bitcoin wallet with Taproot support.",
+                "icon": "",
+                "appLink": "https://ranchimall.github.io/taprootwallet",
+                "moreLink": "#/dapps/taproot-wallet",
+                "tags": [
+                    "bitcoin",
+                    "wallet",
+                    "taproot"
+                ],
+                "category": "wallet",
+                "hash": "592bdad38e1b45e41247f054de33b9d71c58d4178d70ca03c22f1def7c97e2c0"
+            }
+        ].sort((a, b) => a.name.localeCompare(b.name));
         router.addRoute('home', renderHome)
         router.addRoute('', renderHome)
         function renderDappCard(dapp) {
-            const { name, description, icon, appLink, moreLink, tags, category } = dapp;
+            const { name, description, icon, appLink, moreLink, tags, category, hash } = dapp;
             return html`
-                <li class="dapp-card">
+                <li class="dapp-card" .dataset=${{ appLink, hash }}>
                     <div class="flex space-between">
                         <div class="dapp-card__icon">
                             ${icon}
@@ -603,8 +694,7 @@
             const linkToVerify = getRef('link_verification__input').value.trim();
             if (linkToVerify === '')
                 return notify('Please enter a link to verify', 'error', {
-                    timeout: 5000,
-                    pinned: false
+                    timeout: 5000
                 })
             const linkIsHostedCorrectly = linkToVerify.startsWith('https://ranchimall.github.io/')
             const linkIsAuthorized = dappsList.some(({ appLink }) => linkToVerify.includes(appLink))
@@ -744,6 +834,21 @@
                 );
             })
         })
+
+        async function getRepoHash(repoName = 'messenger') {
+            const response = await fetch(`https://api.github.com/repos/ranchimall/${repoName}/contents/`)
+            const json = await response.json()
+            const combinedSHA = json.reduce((acc, { sha }) => acc + sha, '')
+            return await calculateSHA256(new Blob([combinedSHA]))
+        }
+
+        async function calculateSHA256(blob) {
+            const buffer = await blob.arrayBuffer();
+            const hashBuffer = await crypto.subtle.digest('SHA-256', buffer);
+            const hashArray = Array.from(new Uint8Array(hashBuffer));
+            const hashHex = hashArray.map(byte => byte.toString(16).padStart(2, '0')).join('');
+            return hashHex;
+        }
     </script>
 </body>
 
diff --git a/scripts/octokit.js b/scripts/octokit.js
deleted file mode 100644
index 2f12798..0000000
--- a/scripts/octokit.js
+++ /dev/null
@@ -1,20 +0,0 @@
-import { Octokit, App } from "https://esm.sh/octokit";
-
-async function some() {
-    const octokit = new Octokit({
-        auth: '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'
-    })
-    const owner = 'ranchimall';
-    const repo = 'messenger';
-    return await octokit.request('GET /repos/{owner}/{repo}', {
-        owner,
-        repo,
-        headers: {
-            'X-GitHub-Api-Version': '2022-11-28'
-        }
-    })
-}
-console.log(new Octokit({
-    auth: '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'
-}))
-// console.log(await some())
diff --git a/scripts/octokit.min.js b/scripts/octokit.min.js
deleted file mode 100644
index 59b19ac..0000000
--- a/scripts/octokit.min.js
+++ /dev/null
@@ -1 +0,0 @@
-import{Octokit,App}from"https://esm.sh/octokit";async function some(){const octokit=new Octokit({auth:"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"});return await octokit.request("GET /repos/{owner}/{repo}",{owner:"ranchimall",repo:"messenger",headers:{"X-GitHub-Api-Version":"2022-11-28"}})}console.log(new Octokit({auth:"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"}));
\ No newline at end of file