[Proposal setup] Proposal title

Please provide your proposal title

Ototentik: Ending Car Fraud in Indonesia (Midnight + RWA)

[Proposal Summary] Budget Information

Enter the amount of funding you are requesting in ADA

175000

[Proposal Summary] Time

Please specify how many months you expect your project to last

8

[Proposal Summary] Translation Information

Please indicate if your proposal has been auto-translated

No

Original Language

en

[Proposal Summary] Problem Statement

What is the problem you want to solve?

Indonesia's used car market is a $8.15B lemon market; 70% of cars have tampered odometers. Centralized databases are bribable, and buyers have no trustless way to verify a vehicle's true history.

[Proposal Summary] Supporting Documentation

Supporting links

• https://www.figma.com/slides/1OaYB3OolzrLdlzzfs39ld/Product-Roadmap-Ototentik?node-id=1-42&t=hRthwyAbSjSKmztG-1
,
• https://github.com/Sumbu-Labs
,
• https://sumbu.xyz
,
• https://cari.inspeksimobil.id
,
• https://ototentik.sumbu.xyz

[Proposal Summary] Project Dependencies

Does your project have any dependencies on other organizations, technical or otherwise?

Yes

Describe any dependencies or write 'No dependencies'

PT Inspeksi Mobil Jogja: We rely on their field team (15+ engineers) to perform the physical inspections. This partnership is secured (MOU signed). || Midnight Network: We depend on the Midnight Mainnet (or stable DevNet) availability for the privacy features. Mitigation: If Midnight delays, we will launch with "Public Metadata" first and upgrade to ZK-Privacy in v2.

[Proposal Summary] Project Open Source

Will your project's outputs be fully open source?

Yes

Please provide details on the intellectual property (IP) status of your project outputs, including whether they will be released as open source or retained under another licence.

All Smart Contracts (Plutus/Aiken/Midnight), the Registry Logic, and the Core Mobile App code will be released under the MIT License. The protocol is 100% open source to ensure trust.

Note: Specific proprietary inspection algorithms (the "Secret Sauce" of PT Inspeksi's fraud detection mechanics) will remain trade secrets, but the verification layer (the blockchain connectors) will be fully public.

License Type: MIT License.

[Theme Selection] Theme

Please choose the most relevant theme and tag related to the outcomes of your proposal

RWA

[Campaign Category] Category Questions

Describe what makes your idea innovative compared to what has been previously launched in the market (whether by you or others).

Ototentik disrupts the market through three specific innovations that no existing competitor (Web2 or Web3) possesses:

1. THE "PHYGITAL" ORACLE VS. CENTRALIZED DATABASES (WEB2 INNOVATION)
   1. Incumbents like OLX Autos or Carro rely on SQL databases where an admin can be bribed to delete a "Flood Damage" record. Ototentik replaces this with an On-Chain Registry. By using Abstracted Wallets, every inspection report is cryptographically signed by a verified engineer. Once minted, the record is immutable. Not even our developers can alter the history, eliminating the "Insider Threat."
2. PERMANENT STORAGE VS. BROKEN LINKS (WEB3 INNOVATION)
   1. Most NFT projects store metadata on IPFS (which vanishes if pinning stops) or centralized servers. Ototentik utilizes Arweave for "Permaweb" storage. We pay once, and the inspection photos/PDFs are stored for 200+ years. This ensures a car bought today can be verified in 2045, solving the "Link Rot" problem of traditional NFTs.
3. PRIVACY WITHOUT SECRECY (MIDNIGHT INNOVATION)
   1. Sellers often refuse to share history due to privacy laws (UU PDP). Ototentik uses Midnight ZK-Snarks to allow a buyer to verify "Is this car accident-free?" receiving a "True/False" proof without ever exposing the previous owner's PII (Personally Identifiable Information). This resolves the transparency vs. privacy paradox.

Describe what your prototype or MVP will demonstrate, and where it can be accessed.

Our MVP will be a fully functional "End-to-End Verification Pipeline" accessible via a Web Dashboard and a Mobile App. We will build on top of the system that we've created in Fund 13 (CAR-dano) that you can see in the image below.

1. THE INSPECTOR APP (ANDROID/FLUTTER)
   1. Demonstrates: The "Invisible Web3" flow. An inspector will log in using their Google Workspace email. The app will invisibly generate a wallet, sign the inspection data, upload it to Arweave, and mint the result on the Cardano Pre-Prod Testnet (and later Mainnet).
   2. Key Feature: Offline-first capability using local caching, syncing with the chain once the 4G signal is restored.
   3. Access: Available as an APK for the PT Inspeksi Mobil Jogja team.
2. THE BUYER VERIFICATION PORTAL (WEB/MOBILE)
   1. Demonstrates: The "Trustless Scan." A user can scan a QR code (or enter a Chassis Number). The portal will query the Registry Contract and Arweave. It will display the "Digital Twin" of the car side-by-side with the current live data.
   2. Key Feature: A "Red Flag" system. If the blockchain record says "Odometer: 80,000km" but the car is being sold with "40,000km", the UI will visually alert the user of fraud.
   3. Access: Publicly accessible URL (e.g., verify.ototentik.id) and a Flutter-based mobile app.
3. THE REGISTRY DASHBOARD (ADMIN)
   1. Demonstrates: The governance of the system. We will show how we add/remove authorized inspector wallets on-chain, proving that if an inspector goes rogue, we can revoke their signing rights instantly.

Describe realistic measures of success, ideally with on-chain metrics.

We define success through "Real World Adoption" and "Chain Activity."

1. COMMERCIAL ADOPTION (THE "NORTH STAR")
   1. Target: 500 Paid Inspections completed and minted within the pilot period.
   2. Validation: These are not fake testnet transactions; these are real customers of PT Inspeksi Mobil Jogja paying for a service, where the result happens to be blockchain-verified.
2. ON-CHAIN VOLUME
   1. Minting Transactions: 500+ CIP-68 NFT Mints (1 per car).
   2. Storage Volume: ~25GB of high-res inspection data permanently stored on Arweave, linked via Cardano metadata.
   3. Wallet Growth: 15+ Inspector Wallets (Active Signers) and ~300+ Buyer Wallets (Passive Holders/Viewers created via Abstracted accounts).
3. FRAUD PREVENTION VALUE
   1. Target: Detect at least 10 instances of "State Drift" (where the physical car differs from the reported condition) during the pilot.
   2. Impact: Saving Indonesian consumers approximately Rp 500 Million ($30,000) in potential fraud losses (assuming avg loss of Rp 50M per lemon car).

[Your Project and Solution] Solution

Please describe your proposed solution and how it addresses the problem

TL;DR

Ototentik prevents used car fraud in Indonesia. We use Abstracted Wallets, Arweave, & Midnight to mint immutable vehicle histories, empowering PT Inspeksi Mobil Jogja to eliminate odometer rollback.

OTOTENTIK PROTOCOL: THE TECHNICAL ARCHITECTURE

Ototentik is not merely a dApp; it is a "Phygital" Verification Protocol that bridges the physical reality of vehicle conditions with the immutable certainty of the Cardano blockchain. Our solution replaces "Trust in People" with "Trust in Code" using a Web2.5 architecture that removes crypto friction for mass adoption.

THE TECH STACK

1. The "Phygital" Bridge (Mobile & Frontend)
   1. Inspector App (Android/Tablet): Built with Flutter. We utilize Abstracted Wallets (via Web3Auth or similar) allowing inspectors to log in with corporate Google Credentials. The app uses cardano-serialization-lib (Rust via FFI) to sign transactions locally on the device without ever exposing a seed phrase.
   2. Verification Portal (Web): Built with Next.js. It connects to the blockchain to fetch CIP-68 metadata and to Arweave to stream high-res evidence. It features a "Red Flag" UI that visually highlights discrepancies between the blockchain record and the physical car.
2. The Storage Layer (The "Permaweb")
   1. Arweave: We do not use AWS S3 or IPFS (which is prone to "link rot"). We use Arweave for permanent, censorship-resistant storage.
   2. Irys (formerly Bundlr): We use Irys as a bundling service to upload inspection photos, engine audio files (for AI sound analysis), and PDF reports instantly with finalized transaction hashes, ensuring a seamless UX.
3. The Blockchain Layer (Cardano + Midnight)
   1. Settlement (Cardano L1): We use CIP-68 (The Reference Token Standard).
      1. Reference NFT (000643b0...): Held by the Protocol Smart Contract. Stores the mutable data (Current Mileage, Service Grade).
      2. User Token (000de140...): Issued to the Car Owner. Represents "Title/Ownership" of the digital twin.
   2. Privacy (Midnight Sidechain): We deploy a ZK-Snark Circuit on Midnight. This allows the protocol to answer specific queries (e.g., "Is Flood_Damage == False?") with a mathematical proof, satisfying UU PDP (Indonesian Data Privacy Law) requirements by not revealing the inspector's notes or previous owner's location.
   3. Governance (Plutus V3): An "Authorized Registry" Smart Contract. This is an on-chain allowlist of Inspector Wallet Addresses. Only wallets in this registry can mint or update vehicle records.

DETAILED USER FLOWS

The Inspector Flow (Invisible Web3)

1. Goal: Create an immutable record without knowing how crypto works.
2. Step 1: Inspector arrives at the garage and opens the Ototentik Tablet App.
3. Step 2: Login via "Sign in with Google" (PT Inspeksi Workspace). Background: The app derives a deterministic private key from the OAuth token.
4. Step 3: Inspector completes the 150-point checklist, takes photos of the chassis/odometer, and records engine sound.
5. Step 4: Inspector hits "Finalize Report."
6. Step 5 (Automated):
   1. App uploads media to Arweave via Irys $\rightarrow$ Returns ar://hash.
   2. App constructs a CIP-68 Metadata JSON containing the Hash + VIN + Odometer.
   3. App signs the Minting Transaction using the invisible wallet.
   4. Transaction is submitted to Cardano.
7. Result: A "Digital Twin" NFT is minted. The inspector sees a "Success" animation.

The Buyer/Seller Flow (Trustless Verification)

1. Goal: Verify a car's history in <10 seconds.
2. Step 1: Buyer finds a used car. Seller claims "Low Mileage (40k km)."
3. Step 2: Buyer scans the Ototentik QR Sticker on the car's door jamb.
4. Step 3: The Ototentik Web Portal opens. It queries the Cardano Blockchain for the latest CIP-68 state.
5. Step 4: The portal fetches the original Arweave Photos from the last inspection (dated 6 months ago).
6. Step 5: The "Red Flag" Check:
   1. Buyer looks at the physical odometer: 40,000 km.
   2. Buyer looks at the Blockchain Record: Last Recorded: 85,000 km.
   3. UI Alert: 🔴 "POSSIBLE TAMPERING DETECTED"
7. Step 6 (Privacy Mode): If the buyer wants to see "Accident History," they request a Midnight ZK-Proof. The system returns a green checkmark "Verified Accident-Free" without showing the PDF report containing the previous owner's name.

The Admin Flow (Governance)

1. Goal: Manage the "Human Oracles."
2. Step 1: Sumbu Labs Admin accesses the Registry Dashboard.
3. Step 2: A new Inspector is hired by PT Inspeksi. Admin inputs their work email/wallet address into the Dashboard.
4. Step 3: Admin signs a "Grant Authority" transaction. The Smart Contract updates the Allowlist.
5. Step 4 (Revocation): An inspector is caught taking a bribe. Admin clicks "Revoke".
6. Step 5: The Smart Contract removes the inspector's address. Any future attempt by that inspector to mint a report will fail on-chain immediately.

WHY THIS ARCHITECTURE?

1. Cost Efficiency: We use Arweave (pay once) instead of AWS S3 (pay monthly).
2. Scalability: Mithril integration ensures the mobile app doesn't need to download the whole blockchain, allowing it to scale to millions of users.
3. Compliance: Midnight ensures we don't violate privacy laws while still providing transparency.
4. Adoption: Abstracted Wallets mean we don't need to train 50 mechanics on how to manage 24-word seed phrases.

[Your Project and Solution] Impact

Please define the positive impact your project will have on the wider Cardano community

Ototentik delivers a dual-layer impact strategy: driving high-value utility for the Cardano ecosystem while solving a critical $8.15B economic crisis in Indonesia.

IMPACT ON THE CARDANO COMMUNITY (The "Chain" Value)

A. Driving "High-Quality" Transaction Volume (Fees & Activity)

1. Unlike "PFP" (Profile Picture) projects where activity dies after the mint, Ototentik is a High-Frequency State Machine.
2. The Mint: Every car inspection generates a complex CIP-68 (Reference Token) transaction. This locks 3 ADA in MinUTxO and generates higher transaction fees (0.5 - 1.0 ADA) than standard txs due to the rich metadata payload (Arweave hashes).
3. The Lifecycle Updates (Recurring Revenue): Vehicles are living assets. Every 6 months (service intervals) or upon resale, the metadata is updated. A fleet of 10,000 verified cars generates a constant stream of Metadata Update Transactions for years, creating a sustainable fee baseline for the network.
4. Data Usage: We are not clogging the chain with JPEGs. We are storing hashes of real economic data, proving Cardano’s capability to handle high-throughput industrial IoT data.

B. Onboarding the "Next Million" (Wallet Growth)

1. Indonesia has 22 Million Crypto Investors (more than stock market investors), yet most only hold tokens on centralized exchanges (Indodax/Tokocrypto).
2. The Strategy: Ototentik converts "Passive Holders" into "Active Users." A car buyer scans a QR code and interacts with a wallet (Abstracted) without realizing it.
3. The Metric: We project 300+ New Active Wallets in the pilot phase alone, with a pathway to 10,000+ wallets by Year 2. These are sticky users who rely on the wallet for their asset's value, not for speculation.

C. Establishing RWA Dominance (Narrative Win)

1. The crypto industry is pivoting to Real World Assets (RWA). By successfully tokenizing high-value verified vehicles (not just static real estate), Ototentik provides a live case study that Cardano is the #1 Chain for RWA.
2. This gives the entire community "Bragging Rights" and marketing material to pitch Cardano to other enterprise clients (e.g., logistics, insurance) in Southeast Asia.

IMPACT ON THE NON-CARDANO COMMUNITY (The "World" Value)

A. Solving the $10 Billion "Lemon Market" (Economic Impact)

1. The Indonesian used car market is valued at $8.15 Billion (2025), but ~70% of vehicles suffer from odometer fraud.
2. For Buyers: We protect the average Indonesian family from losing Rp 50 Million ($3,100) on a lemon car (e.g., a flood-damaged Avanza). This is often a family's life savings.
3. For Sellers: Honest sellers currently suffer because buyers assume everyone is lying. Ototentik allows an honest seller to prove their car's value, commanding a fair price premium (approx. 5-10%) for a "Verified Tokenized" vehicle.

B. Consumer Protection & Safety (Social Impact)

1. Safety: A car with a rolled-back odometer might have missed critical timing belt changes, leading to engine failure at highway speeds. By exposing the true mileage, we directly improve road safety.
2. Privacy (UU PDP Compliance): We are the first solution to respect the user's right to privacy using Zero-Knowledge Proofs (Midnight). We show the Web2 world that blockchain isn't just about "public transparency" (which they hate); it's about "selective disclosure" (which they need).

C. The "Web2.5" Education (Educational Impact)

PT Inspeksi Mobil Jogja (our partner) is a traditional Web2 business. By integrating blockchain into their workflow seamlessly, we demonstrate to thousands of SMEs in Indonesia that Web3 is an infrastructure layer, not a casino. This demystifies the technology for regulators and business owners.

[Your Project and Solution] Capabilities & Feasibility

What is your capability to deliver your project with high levels of trust and accountability? How do you intend to validate if your approach is feasible?

Our capability to deliver is proven by our track record as a "Fund 13 Winner" and our incubation within Universitas Gadjah Mada (UGM), Indonesia's premier research university.

1. PROVEN TRACK RECORD (SUMBU LABS)

We are not a new team. We are the creators of "CAR-dano," a Fund 13 funded project (60,000 ADA) that successfully delivered the first blockchain-based vehicle inspection pilot in Indonesia.

1. Delivery Evidence: We have successfully coordinated with PT Inspeksi Mobil Jogja to digitize real-world inspection data. Our team has managed Catalyst funds transparently, hitting all milestones on time.
2. Technical Mastery: Our team has already built the "CAR-dano v1" prototype, proving we can handle complex full-stack architectures (Next.js, Rust/Plutus, Hyperledger Fabric interoperability).

2. STRATEGIC PARTNERSHIP (OPERATIONAL FEASIBILITY)

We are not building "tech looking for a problem." We have a signed operational partnership with PT Inspeksi Mobil Jogja (IMJ).

1. Infrastructure Access: We have immediate access to IMJ's garage, industrial OBD scanners, and a fleet of 15+ certified mechanical engineers who will serve as the "Human Oracles" for this project.
2. Real User Base: We do not need to hunt for users. IMJ processes hundreds of cars monthly. We simply integrate Ototentik into their existing workflow.

3. ACADEMIC & SCIENTIFIC RIGOR (UGM BACKING)

Our code and architecture are supervised by active blockchain researchers from the Faculty of Engineering, Universitas Gadjah Mada.

1. Dr. Noor Akhmad Setiawan (PhD, UTP): Provides rigorous security audits of our Smart Contracts.
2. Dr. Guntur Dharma Putra (PhD, UNSW): A specialist in "Blockchain-based Trust for IoT," ensuring our Phygital bridge (connecting physical cars to digital tokens) is theoretically sound and secure.

4. FINANCIAL & RISK MANAGEMENT

1. Volatility Planning: We have budgeted 175k ADA using a conservative "Safe Rate" ($0.50), ensuring we can complete the 8-month roadmap even if market conditions worsen.
2. Legal Compliance: Our team includes operations and business support (Virna Amrita) to ensure all "Midnight Privacy" features comply with Indonesian Data Privacy Laws (UU PDP).

[Milestones] Project Milestones

Milestone Title

Foundation: Registry Contract & Web2.5 Backend

Milestone Outputs

1. Deployment of the "Authorized Signer Registry" Smart Contract on Cardano Pre-Prod Testnet. This contract manages the allowlist of Inspector Wallets.
2. Development of the "Sumbu Auth" Backend (FastAPI). This API handles the Google OAuth (Web3Auth) login flow and securely derives deterministic wallet keys for the inspectors.
3. Arweave Integration Script (Node.js/Python). A backend service capable of receiving media files (images/PDFs) and uploading them to Arweave via Irys (Bundlr) for instant finality.

Acceptance Criteria

1. Registry Contract Verification: A reviewer can verify the contract address on Cardanoscan (Pre-Prod). The contract must successfully allow a "Whitelisted" wallet to execute a mock transaction and reject a "Non-Whitelisted" wallet.
2. Web2.5 Auth Test: An inspector can log in with a Google Account, and the backend returns a valid Cardano Wallet Address (Bech32) associated with that email.
3. Storage Persistence Test: A test image uploaded via the script returns a valid ar:// hash that is accessible via a public Arweave gateway.

Evidence of Completion

1. GitHub Repository Link containing the Plutus V3 Registry Contract source code.
2. A 3-minute video demonstration showing: (A) Google Login generating a wallet address, (B) An image upload returning an Arweave Hash, (C) On-chain verification of the Registry interaction.
3. Link to the deployed API endpoint documentation (Swagger/OpenAPI).

Delivery Month

1

Cost

35000

Progress

20 %

Milestone Title

Core Tech: CIP-68 Minting & Midnight Privacy

Milestone Outputs

1. CIP-68 "Digital Twin" Minting Policy. This Plutus script governs how vehicle tokens are minted and updated. It must strictly enforce that only the "Registry Contract" can authorize a mint.
2. Midnight ZK-Snark Prototype. A basic "Selective Disclosure" circuit deployed on the Midnight DevNet. It should accept private input (e.g., "Flood_Damage = False") and output a public proof ("Verified") without revealing the raw data.
3. Integration of Arweave Metadata into CIP-68 standard (linking the `ar://` hash to the Token).

Acceptance Criteria

1. Minting Policy Test: Successful minting of a Vehicle NFT on Pre-Prod Testnet. The token metadata must correctly resolve to the Arweave link.
2. Privacy Circuit Test: A successful transaction on Midnight DevNet where a reviewer can verify a "True" condition without seeing the private inputs.
3. Interoperability Check: The Cardano Token must reference the Midnight Proof (via metadata or sidechain anchor), proving the link between the Asset and the Privacy Proof.

Evidence of Completion

1. Transaction Hashes (Cardanoscan) showing the minting of the first "Ototentik Test Vehicle" token.
2. GitHub Repository link for the Midnight Circuit code (Compact/TypeScript).
3. A technical report explaining the CIP-68 Metadata structure used.

Delivery Month

3

Cost

52500

Progress

50 %

Milestone Title

Mobile App: Flutter Alpha & Mithril Integration

Milestone Outputs

1. "Ototentik Inspector" Mobile App (Flutter) v0.5 (Alpha). Features: Google Login, 150-point Checklist UI, Camera integration, and "One-Click Mint" button.
2. Mithril Light Client Integration. The app must successfully verify the Cardano chain tip/state on a mobile device without connecting to a centralized API for trustless verification.
3. "Offline Mode" Logic. The app must be able to cache inspection data locally if the 4G network is lost, and sync/mint once connectivity is restored.

Acceptance Criteria

1. End-to-End Mobile Flow: An inspector can open the APK, log in, take a photo, and click "Mint." The app should automatically handle the Arweave upload and Cardano transaction signing in the background.
2. Mithril Speed Test: The app must verify the latest block header in under 5 seconds on a standard Android device.
3. Offline Sync Test: Data saved while in "Airplane Mode" must successfully upload and mint when internet is re-enabled.

Evidence of Completion

1. Android APK file (or TestFlight link) for the Alpha App.

2. A video walkthrough of the "Offline Mode" and "Mithril Verification" features working in real-time.

3. Source code for the Flutter App (GitHub) with sensitive keys removed.

Delivery Month

5

Cost

35000

Progress

70 %

Milestone Title

Pilot Launch: 50 Real-World Inspections

Milestone Outputs

1. Production Deployment. Registry Contracts and Backend API deployed to Cardano Mainnet.
2. Pilot Execution. PT Inspeksi Mobil Jogja field team performs 50 paid inspections on real customer vehicles using the Ototentik App.
3. Minting of 50 "Digital Twin" NFTs on Mainnet. These tokens represent actual cars currently on the road in Yogyakarta.
4. Bug Fix Sprint. Resolution of any UX/UI issues reported by the field team during the pilot.

Acceptance Criteria

1. On-Chain Verification: 50 distinct Asset IDs (NFTs) visible on Cardano Mainnet, each containing valid Arweave links to real inspection reports.
2. Physical Verification: Photos of the "Ototentik Verified" QR stickers attached to the 50 pilot vehicles.
3. Stability: The system handles 50 concurrent uploads/mints without server downtime or transaction failures.

Evidence of Completion

1. A public list of the 50 Mainnet Asset IDs (Policy ID + Asset Name).
2. A "Pilot Report" PDF summarizing user feedback from the PT Inspeksi engineers (UX friction points, speed, reliability).
3. Photos/Video of the field team using the app on real cars.

Delivery Month

7

Cost

35000

Progress

90 %

Milestone Title

Project Close: Reporting & Open Source Release

Milestone Outputs

1. Final Project Report. A comprehensive document detailing the pilot results, fraud detection statistics (how many "lemons" were caught), and the economic impact on the car sellers.
2. Full Open Source Release. All code repositories (Smart Contracts, Mobile App, Backend) are cleaned, documented, and licensed under MIT.
3. "Project Close" Video. A narrative video showcasing the journey, the technology, and testimonials from the PT Inspeksi team.

Acceptance Criteria

1. Public Access: All GitHub repositories are public and contain a clear README for other developers to fork/deploy the protocol.
2. Community Review: The Final Report is submitted to the Catalyst Reporting Portal and approved.
3. Impact Verification: The report includes data on the number of wallets created and total data stored on Arweave.

Evidence of Completion

1. Link to the "Ototentik-V1" Public GitHub Organization.
2. Link to the Final Report PDF.
3. Link to the YouTube "Project Close" video.

Delivery Month

8

Cost

17500

Progress

100 %

[Final Pitch] Budget & Costs

Please provide a cost breakdown of the proposed work and resources

EXCHANGE RATE ASSUMPTION: 1 ADA = $0.40 USD (Volatility Buffer applied for Nov 2025 market conditions).

Our budget is lean and localized. We utilize "geo-arbitrage" to hire top-tier Indonesian engineering talent at rates 70% lower than Western equivalents, delivering maximum value to the Cardano ecosystem.

1. CORE TEAM LABOR (104,800 ADA)

Justification: Rates are based on Indonesian Tech Market standards (~Rp 25-35M/month), ensuring full-time dedication without moonlighting.

1. Giga Hidjrika (Project Lead & Architect)
   1. Role: Project Management, System Architecture, Stakeholder Relations.
   2. Rate: 45 ADA/hr (~$18/hr)
   3. Hours: 80 hrs/month (Catalyst billed) x 8 months = 640 hrs
   4. Subtotal: 28,800 ADA
   5. Justification: High responsibility for fund management and partnership success.
2. Maulana Anjari (Lead Backend & Smart Contracts)
   1. Role: Plutus V3 Registry Contract, Midnight ZK Circuit, FastAPI Security.
   2. Rate: 40 ADA/hr (~$16/hr)
   3. Hours: 80 hrs/month x 8 months = 640 hrs
   4. Subtotal: 25,600 ADA
   5. Justification: Critical technical risk owner. Handles the security of the protocol.
3. Dzikran Azka (Lead Mobile & DevOps)
   1. Role: Flutter Dev, Mithril Light Client Integration, DevOps (Coolify/Docker).
   2. Rate: 35 ADA/hr (~$14/hr)
   3. Hours: 80 hrs/month x 8 months = 640 hrs
   4. Subtotal: 22,400 ADA
   5. Justification: Complex integration of CSL (Cardano Serialization Lib) on mobile.
4. Farhan Franaka & Azfar Azdi (Frontend & UI/UX / AI)
   1. Role: Next.js Dashboard, Verification Portal, UX Research, AI Sound Analysis.
   2. Rate: 30 ADA/hr (~$12/hr)
   3. Hours: 80 hrs/month x 8 months = 640 hrs
   4. Combined Subtotal: 19,200 ADA (Shared Allocation)
   5. Justification: Delivering the "Trust" interface for non-crypto users.
5. Virna Amrita (Ops & Community Manager)
   1. Role: Compliance (UU PDP), Social Media, Reporting, General Affairs.
   2. Rate: 20 ADA/hr (~$8/hr)
   3. Hours: 55 hrs/month x 8 months = 440 hrs
   4. Subtotal: 8,800 ADA
   5. Justification: Critical for legal safety and community engagement.

ADVISORY & AUDIT (7,200 ADA)

1. Academic Advisors (Dr. Noor Akhmad & Dr. Guntur)
   1. Role: Code Audit, Security Architecture Review.
   2. Rate: 60 ADA/hr (Expert Consultant Rate)
   3. Hours: ~15 hours/month (Total 120 hrs project wide)
   4. Subtotal: 7,200 ADA
   5. Justification: High-level academic oversight to prevent exploit vectors.

HARDWARE & INFRASTRUCTURE (15,000 ADA)

1. Inspector Hardware
   1. 5x Rugged Android Tablets (Samsung Tab Active or similar): 3,500 ADA
   2. 5x Industrial OBD-II Scanners (Launch/Autel): 1,500 ADA
   3. Justification: Essential tools for the "Phygital" bridge. Devices will be asset-tagged as Sumbu Labs property.
2. Server & Storage (10,000 ADA)
   1. Arweave Permanent Storage Fees: 4,000 ADA (Pre-paying storage for ~25GB of inspection data).
   2. Blockfrost Enterprise API: 2,000 ADA (High throughput for mobile app).
   3. Cloud Infrastructure (AWS/VPS): 4,000 ADA (At least 8 months of hosting backend & nodes).

MARKETING, COMMUNITY & LEGAL (20,000 ADA)

1. Pilot Incentives (Subsidy)
   1. Allocation: 10,000 ADA
   2. Description: 50% discount subsidy for the first 500 customers. We pay PT Inspeksi the difference to bootstrap volume.
2. Marketing & Documentation
   1. Allocation: 6,000 ADA
   2. Description: Video production (Project Close), Social Media Ads (Targeting car buyers in Jogja), and technical documentation hosting (GitBook).
3. Legal Compliance (UU PDP)
   1. Allocation: 4,000 ADA
   2. Description: Consultation fees for Data Privacy assessment to ensure Midnight ZK implementation meets Indonesian Law.

CONTINGENCY & VOLATILITY BUFFER (28,000 ADA)

1. Allocation: ~16% of Total Budget.
2. Justification: ADA price volatility is currently high and tends to be bearish. This buffer protects the project if ADA drops below $0.35. If price remains stable, these funds will be re-allocated to extend the pilot phase to Month 10.

[Final Pitch] Value for Money

How does the cost of the project represent value for the Cardano ecosystem?

Ototentik offers exceptional value to the Cardano Community by leveraging "Geo-Arbitrage."

ELITE TALENT, LOCAL RATES

We are hiring Engineers who have already delivered a Catalyst Project (Fund 13 Winners) at a rate of ~$14-$18/hour. In the US/EU, equivalent blockchain engineers cost $100-$150/hour. This means Fund 15 gets 6x more development hours for every ADA spent compared to a Western team.

HIGH-IMPACT RWA

Most grants fund "software only" projects. For 175k ADA, we are delivering physical infrastructure (Hardware + Real Cars) and onboarding a profitable Web2 business (PT Inspeksi) onto Cardano. The cost per "New Active Wallet" is approx $15, which is significantly lower than the industry average CPA (Cost Per Acquisition) of $40-$60.

REUSABLE OPEN SOURCE IP

We are building two critical primitives that currently don't exist for the community:

1. A "Registry Contract" for managing off-chain employees on-chain.
2. A "Web2.5 Flutter Boilerplate" for Abstracted Wallets on mobile.

These will be released MIT, allowing any other RWA project (Real Estate, Logistics) to copy-paste our architecture, multiplying the value of this grant.

[Self-Assessment] Self-Assessment Checklist

I confirm that evidence of prior research, whitepaper, design, or proof-of-concept is provided.

Yes

I confirm that the proposal includes ecosystem research and uses the findings to either (a) justify its uniqueness over existing solutions or (b) demonstrate the value of its novel approach.

Yes

I confirm that the proposal demonstrates technical capability via verifiable in-house talent or a confirmed development partner (GitHub, LinkedIn, portfolio, etc.)

Yes

I confirm that the proposer and all team members are in good standing with prior Catalyst projects.

Yes

I confirm that the proposal clearly defines the problem and the value of the on-chain utility.

Yes

I confirm that the primary goal of the proposal is a working prototype deployed on at least a Cardano testnet.

Yes

I confirm that the proposal outlines a credible and clear technical plan and architecture.

Yes

I confirm that the budget and timeline (≤ 12 months) are realistic for the proposed work.

Yes

I confirm that the proposal includes a community engagement and feedback plan to amplify prototype adoption with the Cardano ecosystem.

Yes

I confirm that the budget is for future development only; excludes retroactive funding, incentives, giveaways, re-granting, or sub-treasuries.

Yes

[Required Acknowledgements] Consent & Confirmation

I Agree

Yes