Date: 27th November 2024
Host: Guy Mesika, Head of R&D at COTI
Introduction
In the latest COTI Developer Session, we delved into the intricacies of deploying privacy-centric smart contracts across various blockchain networks using Axelar. This session was aimed at developers looking to enhance the privacy features of their dApps while ensuring compliance with global regulatory frameworks like MiCA and GDPR.
Let’s recap the key takeaways.
Session Overview
The session began with a summary of how to deploy smart contracts on the COTI Network, followed by an introduction to the major updates in COTI’s documentation at docs.coti.io. It then transitioned into a technical demonstration, showcasing COTI’s Privacy-on-Demand (PoD) provision, enabled by Axelar’s cross-chain capabilities.
Technical Demonstration of Cross-Chain Privacy
The demo focused on deploying a smart contract that verifies a person’s age, utilizing Axelar’s General Message Passing (GMP) for secure and private data handling.
The team demonstrated a Solidity contract interacting with both an Axelar and a COTI relayer, showcasing how data can be encrypted and processed without revealing the data itself. The process incorporated the following Axelar Components:
- Gateway Contract: Manages cross-chain communication.
- Voting Verifier Contract: Ensures transaction validity through a voting mechanism among three verifiers.
- Multisig Contract: Provides an additional layer of security for transactions.
The demo outlined the transaction process as follows:
- Data Transmission: Data is sent from a source network, encrypted, and stored on the COTI Network.
- Processing: The data is processed and returned to the destination network as Garbled Text (GT), maintaining confidentiality throughout the process.
The session also served to highlight how developers can dynamically manage permissions using COTI’s Data Privacy Framework (DPF), helping to ensure compliance with privacy regulations.
Conclusion
The session not only provided practical insights into deploying privacy-focused smart contracts but also underscored the importance of regulatory compliance and security in blockchain development.
COTI’s collaboration with Axelar opens up new avenues for developers to build applications that prioritize user privacy while harnessing the advantages of COTI’s fast, lightweight privacy layer across different blockchain ecosystems.
To explore the COTI ecosystem further, visit docs.coti.io for updated documentation and resources.
In the ever-evolving blockchain landscape, privacy, security, and compliance are not just features- they are fundamental necessities.
Written by Soeren Jensen
Developers, be sure to check out our resources:
- Github-COTI Remix Plugin: https://github.com/coti-io/coti-remix-plugin
- Testnet Explorer: https://testnet.cotiscan.io/
- Uptime Dashboard: https://uptime.coti.io/
- Testnet Faucet: https://faucet.coti.io/
- Typescript Testnet SDK support: https://github.com/coti-io/coti-sdk-typescript
- Python Testnet SDK Support: https://github.com/coti-io/coti-sdk-python
- COTI Developer Sandbox (DevNet only): https://sandbox.coti.io/
For those interested in deeper collaboration, the COTI Builders Program offers grants of up to $100,000 for eligible applicants. Learn more about this exciting opportunity here.
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