Intran3t

Decentralized workplace app on Polkadot. Forms, access passes, and on-chain identity in a modular dashboard.

Product Owner: Dennis Schiessl, Parity Technologies Target Distribution: Polkadot Triangle (Desktop, Mobile, Web) Last Updated: May 2026

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Live

Channel	URL
Polkadot Desktop	intran3t.dot
Browser	https://intran3t.dot.li

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Overview

Intran3t is a modular intranet-style app running fully on Polkadot. It demonstrates core workplace primitives built on decentralized infrastructure: on-chain desk and room booking, forms with encrypted responses, NFT-based access passes, and People Chain identity.

It runs inside the Polkadot Triangle host (Desktop/Mobile/Web) and uses the Product SDK to integrate with the host's account and signing system. In standalone browser mode, it connects to Substrate wallet extensions directly.

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Tech Stack

Layer	Technology
Framework	React 18 + TypeScript + Vite
Styling	Tailwind CSS 4
Chain API	PAPI (polkadot-api)
Host integration	@novasamatech/product-sdk
EVM interaction	ethers.js 6
Identity	@polkadot/util-crypto, decodeAddress
Storage	Bulletin Chain (content), localStorage (keys)
Hosting	DotNS (bulletin-deploy)

Target Chains

• Paseo Asset Hub (testnet): Smart contracts (FormsV2, AccessPass), account mapping (pallet_revive)
• Paseo People Chain: On-chain identity verification
• Paseo Bulletin Chain: Decentralized content storage (form definitions, encrypted responses)

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Features

Profile Module

Displays on-chain identity from People Chain: verified name, social accounts (Matrix, GitHub, Twitter, Discord, email, website), real-time balance, and identicon.

Forms Module (dForms)

Privacy-preserving form builder with wallet-less submission:

• Creator builds a form and uploads it to Bulletin Chain
• Form is registered on the FormsV2 contract (on-chain CID index)
• Respondents submit via a public link with no wallet needed (Alice relay pays gas on testnet)
• Responses are AES-256-GCM encrypted before upload to Bulletin
• Admin fetches and decrypts responses on demand
• Full on-chain audit trail via the FormsV2 contract

Office Booking Module

Fully on-chain desk and meeting room booking for Berlin, London, and Lisbon:

• Interactive floor maps with per-desk booking state read from chain
• Multi-date desk booking via bookBatch (single transaction)
• 30-minute meeting room slots with on-chain reservation
• Booker identity resolved from People Chain registry, shown as initials on the floor map
• Who's-in-today banner aggregates all bookers for the selected date
• QR code access pass auto-generated after successful booking, shown under My Bookings
• Smart contract: OfficeBooking.sol on Paseo Asset Hub (mapping locationId → date → resourceId → booker)

Acc3ss Module

ERC-721 access passes as NFTs via the AccessPass smart contract:

• Mint location-specific access passes
• Substrate wallets sign EVM transactions via pallet_revive account mapping
• Deterministic Substrate-to-EVM address derivation (keccak256(AccountId32) last 20 bytes)

Account Mapping

Substrate wallets need to be mapped once before signing EVM transactions:

1. Derive EVM address from Substrate address
2. Check on-chain via pallet_revive.OriginalAccount
3. Call pallet_revive.map_account() to register
4. Mapping state cached in localStorage after confirmation

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Smart Contracts

All deployed on Paseo Asset Hub (chain ID 420420417):

Contract	Address
FormsV2	0xe2F988c1aD2533F473265aCD9C0699bE47643316
AccessPass	0xfd2a6Ee5BE5AB187E8368025e33a8137ba66Df94
OfficeBooking	0x311387B85F6d24e87E520b25cca4A706c5574EFf

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Architecture

Triangle Host Integration

The app detects whether it runs inside the Polkadot Triangle host (window.__HOST_WEBVIEW_MARK__ or iframe) and adjusts accordingly:

• In host: Uses createPapiProvider(genesisHash, wsProvider) to route chain calls through the host's light client, with WS as fallback. Accounts and signing are injected by the host via injectSpektrExtension.
• Standalone: Connects to WS RPC endpoints directly, prompts for Substrate wallet extension.

Storage Architecture

Data	Storage
Form definitions	Bulletin Chain
Encrypted responses	Bulletin Chain
CID index (forms/responses)	FormsV2 smart contract
Encryption keys	localStorage (creator only)
Identity data	People Chain (permanent, on-chain)
Access passes	AccessPass smart contract (ERC-721)
Desk/room bookings	OfficeBooking smart contract

Wallet-Less Submission Flow

1. Respondent loads public form link (no wallet required)
2. Form content fetched from Bulletin via CID stored in contract
3. Response encrypted client-side with form's AES-256-GCM key
4. Alice relay (testnet) uploads encrypted response to Bulletin
5. Alice relay submits response CID to FormsV2 contract
6. Admin decrypts using key from localStorage

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Setup

Prerequisites

node >= 22
npm

Install

git clone https://github.com/dennisparity/intran3t.git
cd intran3t
npm install

Environment

Copy .env.example to .env:

VITE_ASSETHUB_EVM_RPC=https://eth-rpc-testnet.polkadot.io
VITE_ASSETHUB_EVM_CHAIN_ID=420420417
VITE_FORMS_CONTRACT_ADDRESS=0xe2F988c1aD2533F473265aCD9C0699bE47643316
VITE_ACCESSPASS_CONTRACT_ADDRESS=0xfd2a6Ee5BE5AB187E8368025e33a8137ba66Df94
VITE_OFFICE_CONTRACT_ADDRESS=0x311387B85F6d24e87E520b25cca4A706c5574EFf
VITE_RELAY_PRIVATE_KEY=<Alice_private_key>  # Testnet only

Development

npm run dev

Build

npm run build

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Deployment

DotNS (Decentralized)

Uses bulletin-deploy CLI:

# Build first
npm run build

# Deploy to Bulletin + update DotNS in one command
set -a; source .env; set +a
NODE_OPTIONS="--max-old-space-size=8192" bulletin-deploy ./dist intran3t.dot --js-merkle

MNEMONIC must be set in .env. The CLI self-grants PoP on testnet when needed.

Re-deploy from pre-built CAR (faster, skips merkleization):

BULLETIN_RPC="wss://paseo-bulletin-next-rpc.polkadot.io" \
NODE_OPTIONS="--max-old-space-size=8192" \
bulletin-deploy --input-car dist.bulletin.car intran3t.dot --js-merkle

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Key Files

src/
  providers/
    WalletProvider.tsx            # Wallet state, PAPI client, account mapping
  modules/
    profile/ProfileWidget.tsx     # People Chain identity display
    forms/FormsWidget.tsx         # Form creation with auto account mapping
    forms/PublicForm.tsx          # Wallet-less public submission
    acc3ss/Acc3ssWidget.tsx       # NFT access pass minting
    office-booking/
      config.ts                   # Office/desk/room data + contract config
      types.ts                    # Shared types
      OfficeBookingCard.tsx        # Dashboard card with office shortcuts
  components/
    FloorMap.tsx                  # Interactive floor plan (PNG + desk overlays)
    MonthCalendar.tsx             # Custom date picker (Mon-Fri only)
  hooks/
    useSubstrateEVMSigner.ts      # Substrate wallet EVM signing
    useAccountMapping.ts          # Mapping check and trigger
    useFormsContract.ts           # FormsV2 contract interactions
    useOfficeBookingContract.ts   # OfficeBooking reads + writes
  lib/
    bulletin-storage.ts           # Bulletin upload/fetch
    forms-encryption.ts           # AES-256-GCM encryption
    wallet-provider.ts            # Extension detection utilities
  pages/
    ModularDashboard.tsx          # Main dashboard
    OfficePage.tsx                # Full office booking UI (desks/rooms/bookings)
    AdminFormResults.tsx          # Response viewing and decryption
contracts/solidity/contracts/
  OfficeBooking.sol               # On-chain booking registry

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Resources

• Polkadot Docs
• PAPI Docs
• Product SDK
• People Chain
• Bulletin Deploy
• Paseo Faucet

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MIT License. Copyright (c) 2026 Dennis Schiessl / Parity Technologies.