Please describe your proposed solution

Partisia Blockchain is a unique blockchain that has two main innovation that can integrate with Cardano. A secure cross-chain bridge and a customizable Multiparty computation (MPC) smart contract language

Through this, we will help bring two value into the Cardano Ecosystem

1. Empower Cardano builders to be able to create data privacy based applications through MPC smart contracts and pay for it using the ADA token
2. Add additional cross-chain liquidity opportunities by enabling ADA tokens to be a transaction gas token in Partisia Blockchain

These two innovations, once integrated into Cardano enable two value proposition into the Cardano Ecosystem. The ability to use the ADA token in other ecosystems as payment and the ability for Cardano developers to create customized MPC based solutions into their dApps.

The solution will involve two smart contracts. One on the Cardano side and one on the Partisia Blockchain side, with a double bookkeeping mint and burn system. The contracts will also allow the bridged ADA token to be usable as transaction gas in the ecosystem, enabling ADA token holders to pay for MPC computation on the chain using the ADA tokens.

Further details on the architecture can be read here - https://partisiablockchain.gitlab.io/documentation/smart-contracts/pbc-as-second-layer/partisia-blockchain-as-second-layer.html

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

The main benefit to the Cardano community will be that we will be able to bring real scalable privacy solutions into the Cardano ecosystem.

From private auctions to enable a better RWA product, enable auditable privatized transfers in blockchain, enable private data to be usable in DePin solutions, enable activation of user data while maintaining privacy.

The value we bring is the ability for the Cardano ecosystem to develop dApps that are not buildable in other blockchains, making Cardano a unique ecosystem to enable many real world use cases that is not possible in the current web3 ecosystem due to the fully transparent nature of blockchains.

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?

Partisia has over 35 years of research experience in MPC and have already created the computational layer to enable MPC in mainnet, which was launched in May 2022.

Our MPC technology already has been used by various governments, NGO's and institutions.

The functionality to enable other tokens to be usable as gas also has been live since mainnet launch and is protected by the largest MPC cluster in the world.

Our development process is based on industry best practices with a full CICD pipeline and 100% test coverage

Our team makeup is available here - https://partisiablockchain.com/connect/foundation/

What are the key milestones you need to achieve in order to complete your project successfully?

Milestone 1: Select the best approach for Reading Cardano State.

• The Collateralized BYOC Bridge needs a decentralized and stable way of reading the state & transactions of the Cardona Blockchain to mirror relevant parts of the state on Partisia Blockchain. We need to select the optimal approach for reading the state with minimal risks and minimal requirements for the node operators that are to run the software that reads the state.

Select the best technology for automated testing of the Cardano-side.

• All Partisia software, including bridges have comprehensive automated testing suites that ensure they work as intended. We need to find the optimal set-up for creating automated testing of the Cardano-side. This set-up should be semantically equivalent to mainnet Cardano, easy to use and able to run locally inside our pipelines.

Acceptance criteria

• Selection of the proper design for ensuring reading of state securely
• Selection of the testing tools and scripts for comprehensive testing

Evidence to be provided

• litepaper showing the design and selection of the tools alongside the testing methodology

MS cost: ADA 23000.00

Delivery date: Jan 2025

Milestone 2: Implement the Cardano reading solution in the Partisia BYOC Bridge software.

• This will involve the actual coding of the smart contract in Partisia Blockchain's side side to ensure proper mirroring of the state in Cardano's side. This will involve both reading of state as well as mint/burn of the tokens

Acceptance criteria

• Source code that can be deployed to Partisia Blockchain's side

Evidence of milestone

• Source code Repo

MS cost: ADA 23000.00

Delivery date: Feb 2025

Milestone 3: Implement the Cardano-side of Bridge Smart Contracts

• This will involve the coding of the smart contract in Cardano's side to ensure proper reading of state is done. This will involve both reading of state as well as coding of accessing RPC providers.

Acceptance criteria

• Source code that can be deployed to Cardano's side

Evidence of milestone

• Source code Repo

MS cost: ADA 160,000.00

Delivery date: May 2025

Milestone 4: - Thorough automated testing of the Bridge solution. Create a fully automated test that ensures that the bridge solution works as intended in a large set of scenarios.

• Security-review of the Bridge smart contracts.
• Deploy to testnets. The Cardano Bridge should be available for end-user testing on a Cardano testnet and a Partisia Testnet.

Acceptance criteria

• Creation of the tool to automate testing
• Testing results come back with all success
• Audit passing from 3rd Party auditor
• Deployment to testnet successfully

Evidence of Milestone

• provide code for testing
• provide testing success in testnet
• provide audit report

MS cost: ADA 230,000

Delivery date: July 2025

Milestone 5: - Document the Bridge. Ensure that the Partisia webpage and developer documentation properly describes and documents all relevant aspects of the bridge.

• Integrate the Cardano Bridge into relevant front-ends. This includes integration into the official Partisia Browser, but also announcing it and working with relevant external teams to support their implementation into relevant solutions.

Acceptance criteria

• Documentation to be completed and posted online
• Integrate bridge front end into our explorer and bridge

Evidence of milestone

• documentation site has new documentations
• bridge in testnet has full features to enable bridging of ADA tokens

MS Cost: ADA: 50,000.00

Delivery date: Sept 2025

Final Milestone: - Deploy to mainnets. On the Partisia-side this includes ensuring that all baker nodes have a properly set-up connection for reading the state of the Cardano blockchain.

Acceptance Criteria:

• testing all features in front end systems are successful

Evidence of milestone:

• testing report to be provided

MS Cost: ADA 14,000.00

Delivery date: Oct 2025

Who is in the project team and what are their roles?

Full member list is available here

https://partisiablockchain.com/connect/foundation/

Please provide a cost breakdown of the proposed work and resources

• Select the best approach for Reading Cardano State: 25h
• Select the best language/technology for writing Cardano-side of Smart Contracts: 25h
• Select the best technology for automated testing of the Cardano-side: 50h
• Implement the Cardano reading solution in the Partisia BYOC Bridge software: 200h
• Implement the Cardano-side of Bridge Smart Contracts: 650h
• Thorough automated testing of the Bridge solution: 200h
• Security-audit of the Bridge smart contracts: 75h + cost-of-audit.
• Document the bridge: 50h
• Integrate the Cardano Bridge into relevant front-ends: 150h
• Deploy to testnet and test: 25h
• Deploy to mainnet and test: 50h

total hours: 1500h = 233ADA per hour

audit cost: 150k ADA

No dependencies

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

Partisia has industry leaders in both blockchain development and cryptography. With notable names such as Ivan Damgard, Jesper Buss Nielsen, Claudio Orlandi, and Kurt Nielsen, the danish team comprises of industry leaders in the space.

This is the reason why the MPC technology that Partisia Blockchain brings is world class.

This MPC technology is what we aim to bring into the Cardano ecosystem. We have developed the technology and now aiming to bring the world class confidential computing layer to all developers in the Cardano ecosystem.

Through empowering Cardano developers with customizable MPC smart contract language, they will be able to create unique blockchain application currently not possible on other chains.