resource: https://medium.com/@RizeLabs/a-framework-for-heterogenous-proof-aggregation-28f2ea8ef96b

github: https://github.com/availproject/Henosis

• The article discusses the future of rollups in Ethereum, particularly focusing on the need for proof aggregation as the number of rollups increases. Rollups, which are second-layer solutions, rely on Ethereum for security. As the ecosystem evolves, modular solutions will become essential for efficient and scalable communication between rollups.
• Proof aggregation involves combining multiple zero-knowledge proofs into a single aggregated proof. This technique reduces computational and storage requirements, which is particularly beneficial for blockchain applications to enhance transaction throughput and scalability.
• Currently, rollups need synchronous communication, leading to delays and inefficiencies. Asynchronous communication, similar to web2 architectures, is necessary for scalability. Proof aggregation can help achieve this by allowing for asynchronous, trustless communication between rollups.

To ensure secure interactions between rollups, inclusion proofs, completeness proofs, and validity proofs are necessary. These proofs confirm data inclusion, proper state transitions, and state validity, respectively.

ZK recursion is crucial for proof aggregation, particularly for heterogeneous proofs. Recursion allows for verifying one proof within another, enhancing compression and composability. This is essential for handling multiple proofs efficiently in rollups.

The article discusses various approaches and benchmarks for heterogeneous proof aggregation. Key strategies include using zkVMs for verification and recursive verification of proofs. The goal is to standardize proofs for easier aggregation while ensuring efficiency and security.

SP1 and Risc0 Comparison

Heterogeneous proof aggregation is a complex but necessary step for the future of scalable and efficient rollups. The framework discussed aims to provide a robust solution for cross-rollup communication and proof verification.

Henosis Main Protocol