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Polygon Labs Instroduce the Future of Blockchain with Type 1 Prover

In a landmark development poised to redefine the landscape of blockchain technology, Polygon Labs has announced the introduction of the “type 1 prover.” This revolutionary tool is designed to enable Ethereum Virtual Machine (EVM)-compatible chains to harness the power of zero-knowledge (ZK) scaling technologies, marking a significant leap forward in the quest for blockchain scalability and efficiency.

Scheduled for release later this year, the type 1 prover will be incorporated into Polygon’s Chain Development Kit (CDK). This integration signifies an evolution from Polygon’s previous proving mechanisms, specifically the type 2 prover, which lacked compatibility with other EVM chains. Brendan Farmer, a co-founder of Polygon, emphasized that the type 1 prover is a universal solution that can generate zero-knowledge proofs for any EVM chain, eliminating the need for hard forks or adjustments to existing clients. This represents a seamless transition for blockchain networks towards greater scalability and interoperability.


The advent of the type 1 prover is set against the backdrop of an ongoing challenge within the blockchain community: how to scale networks efficiently while maintaining security and decentralisation. Polygon Labs’ solution leverages the prover to transition a variety of blockchains, including side chains and optimistic roll-ups, into validiums. Validiums are a specialized form of Layer 2 networks that utilise zero-knowledge proofs for proof verification and transaction settlement on the Ethereum mainnet, offering an elegant solution to the scalability conundrum.

Unlike ZK-Rollups, which require publishing both the proofs and app data on the Ethereum mainnet, validiums store only the zk-proofs on-chain, with the actual transaction data held off-chain. This approach not only enhances efficiency and reduces transaction costs but also maintains robust security through a data availability solution.

Brendan Farmer highlighted the flexibility of the type 1 prover, noting that projects could also opt to become full-fledged ZK-rollups if they preferred. This flexibility underscores Polygon Labs’ commitment to providing blockchain projects with the tools they need to choose their path towards scalability, security, and efficiency.

Eliminating the 7-Day Delay Problem

The move towards ZK-based networks like validiums or ZK-rollups offers tangible benefits, particularly for Layer 2 projects. A notable advantage is the elimination of the seven-day withdrawal delay associated with optimistic rollup solutions, such as Optimism and Arbitrum. This delay has been a point of contention within the community, as it incurs additional time and costs for users who rely on third-party bridges for transactions. According to Farmer, the transition to a ZK-based network could significantly reduce these costs and streamline the user experience.


The introduction of Polygon’s AggLayer—an interoperability protocol—promises to further enhance the scalability and efficiency of blockchain networks. Slated for release this month, the AggLayer aims to connect blockchains, ensuring uniform security across both modular and monolithic chains within the Polygon ecosystem. This interoperability protocol will be a critical component of Polygon 2.0, the next iteration of the Polygon network, and will aggregate ZK proofs from all connected chains, offering a unified and secure ecosystem.

The implications of Polygon Labs’ innovations are far-reaching. By addressing the scalability and efficiency challenges that have long plagued blockchain networks, Polygon is paving the way for broader adoption of blockchain technology across various sectors. The type 1 prover and the subsequent transition of blockchains into validiums or ZK-rollups represent a significant step towards achieving a scalable, secure, and interoperable blockchain ecosystem.

Moreover, the introduction of AggLayer underscores the importance of interoperability in the future of blockchain. As the industry continues to evolve, the ability of different blockchain networks to communicate and share information seamlessly will be crucial for the development of decentralised applications and services. Polygon’s commitment to interoperability and unified liquidity through AggLayer and Polygon 2.0 highlights the company’s vision for a more interconnected and efficient blockchain future.


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