Cardano Launches First Zero-Knowledge Transaction on Mainnet, Powered by Halo2 Technology

By sharing the transaction hash for verification, Core developer Sebastian Guillemot confirmed the milestone. This update, supported by Plutus v3

Cardano, a Layer-1 Proof-of-Stake blockchain, has integrated Zero-Knowledge (ZK) transactions into its mainnet. This advancement was made possible by Halo2 technology and was announced by Core developer Sebastian Guillemot, who shared the transaction hash for verification.

The launch of ZK transactions on Cardano marks a significant step in the blockchain's evolution and aligns with a recent CNF update that explored the potential of Zero-Knowledge Tech as the Final Piece of the Puzzle for Enhanced Blockchain Privacy.

This update, which is supported by Plutus v3, also paves the way for zkApps and partner chains to seamlessly settle on the Cardano mainnet. As highlighted in a tweet by the InputOutput X platform:

“The first tx locks the funds, the second unlocks the funds upon verification of a Halo2 proof for ATMS signature 50 out of 90. The locking tx costs 0.16 ADA fee, the unlocking tx (Halo2 verification) 2.03 ADA fee which is reasonably low.”

— Input Output (@InputOutputHK) November 26,2024

Cost-Effective and Scalable Solution

The capabilities of Halo2 were tested by Input Output Global (IOG), which used the technology to verify 50 signatures using Ad-hoc Threshold Multi-Signature Schemes (ATMS) in a real-world simulation.

The results showcased Halo2's cost-effectiveness, with token locks incurring a fee of 0.16 ADA and unlocking fees amounting to 2.03 ADA.

These efficient costs highlight Halo2's potential to contribute to scaling blockchain operations at a low cost, rivaling the efforts of platforms like Ethereum to enhance scalability.

Cardano's Growth Amid Market Challenges

Cardano has been engaged in continuous innovation, with recent initiatives including the completion of gamified Hydra Doom testing to encourage user participation in testing.

However, the price of ADA has faced challenges, with CoinMarketCap data indicating a 1.34% decrease over 24 hours, bringing the cost to $0.961.

This drop comes amid broader market pressures, though ADA has seen a gain of 23.93% in the past week. As the platform continues to advance, it aims to strengthen its position in the competitive blockchain landscape, with ZK technology playing a crucial role in this strategy.