Zenrock: Paving the Path in dMPC

Zenrock: Paving the Path in dMPC

One of the most consistently discussed, yet significant challenges in the current blockchain landscape is liquidity fragmentation across various, seemingly interoperable blockchains. As more blockchain platforms and protocols have emerged, assets have been dispersed across these chains, and the current technical landscape makes it difficult to move assets from one blockchain to another creating inefficiency in the utilization of liquidity.

While many solutions have been developed to address this gap, they often face critical shortcomings such as centralized custody risks, fragmented blockchain support, and inefficiencies in scalability and trust. This report explores Zenrock’s innovative approach to cross-chain communication through its distributed Multi-Party Computation (dMPC) technology and the transformative applications it enables, with a focus on Zenrock’s wrapped BTC product.

Current State of Cross-Chain Interactions

To fully understand where we are now, we need to start from the beginning. The concept of “cross-chain interactions” was first introduced by the Tendermint team in 2014, but did not gain the mindshare of researchers until Vitalik Buterin published an article “Chain Interoperability” in 2016 at the R3CEV conference. Since then, many of the brightest minds in blockchain have been working to tackle the challenges of cross-chain interoperability. Significant progress has been made but the current solutions still leave much to be desired.

Current cross-chain solutions, such as token bridges, account for ~$24bn in transaction volume per month and secure over $41b TVL, but often rely on centralized or semi-centralized entities. This centralization raises well-founded concerns about trust and security, amplified by several high-profile and costly bridge attacks in recent memory. Many of these attacks exploited vulnerabilities in compromised multi-signature keys, highlighting the risks inherent in centralized and semi-centralized solutions. The most notable hacks total over $965 million and include:

• The Ronin Bridge hack on March 23, 2022 resulted in the theft of $650 million (173,000 Ether and 25.5 million USDC) and went undetected for six days.
• The Multichain 3 hack on July 6, 2023 led to $126 million of DAI, LINK, USDC, WBTC, and wETH.
• The Harmony Horizon Bridge hack on June 24, 2022 saw $100 million stolen due to compromised private keys.
• The Orbit Bridge hack on December 31, 2023 cost $82 million in ETH, USDT, USDC, WBTC, and DAI due to compromised private ke