ICTlogy

Abstract:

DAVINCI is the evolution of the Vocdoni voting protocol, designed to empower civil society by providing essential tools for secure, verifiable, and anonymous digital voting. Using recent advancements in zero-knowledge (ZK) proof systems and blockchain technology, DAVINCI transitions to a specialized ZK roll-up system that inherits network security from settlement layers such as the Ethereum mainnet. The system relies on cryptographic proofs to ensure integrity and security, eliminating the need for centralized authorities. By integrating zk-SNARKs and threshold homomorphic encryption, DAVINCI enables end-to-end verifiability, privacy, and trustlessness in the voting process. The protocol employs distributed key generation among sequencers, coordinated through Ethereum smart contracts, and uses Ethereum data blobs for data availability. With a focus on accessibility, scalability, receipt-freeness, and automation, DAVINCI aims to facilitate high-frequency and low-cost voting, fostering mass adoption of voting and simplifying civil participation. Moreover, the introduction of the Vocdoni token aligns incentives among participants, ensuring the system’s sustainability and enabling decentralized governance. Finally, the design of DAVINCI is grounded in practicality; All components are implemented using current technologies and have undergone proof-of-concept testing. In sum, the proposed architecture is not merely theoretical, but a viable solution ready for short-term deployment. The source code has been made open source, allowing practitioners and researchers to further investigate its details and potential for future uses.