Ephema
ephema.io is a research group focused on mechanism design and incentive systems, primarily within the Ethereum ecosystem. They develop theoretical frameworks and practical tools to improve blockchain scalability, data availability, and market efficiency. Their work includes BlobFusion, a protocol that reduces blob-posting costs by fusing multiple users' data into a single blob transaction.
- Artificial Intelligence
- Blockchain & Cryptocurrency
- Software Only
Funding
Founders
Product
Problem
Ethereum's blobspace, introduced for layer-2 data availability, is often inefficiently used because individual blobs are posted with significant unused capacity, leading to overpayment. This problem is exacerbated as demand for blobspace grows, and current mechanisms do not support sharing blobs between multiple users, forcing L2s to wait and batch transactions, which degrades finality and user experience.
Solution
ephema.io is a research group that designs and implements novel mechanism and incentive systems to address these inefficiencies. Their flagship solution, BlobFusion, is a protocol that enables multiple users to share a single blob, reducing costs and improving data availability. The protocol works by accepting bids and signed data from users, then fusing them into an optimal blob that is submitted to the Ethereum network (currently Sepolia) when the sum of bids exceeds the estimated cost. This approach makes blob posting cheaper and more efficient, and the group also conducts theoretical analysis and simulations on related topics like Execution Tickets, proposer-builder separation, and MEV redistribution.
Target Audience
Primary users are Ethereum layer-2 teams, blockchain researchers, and protocol developers seeking to optimize data availability, reduce transaction costs, and understand incentive mechanisms. The tools and research are also relevant for validators and MEV-related actors looking to adapt to evolving protocol designs.
Features
- BlobFusion protocol that fuses multiple users' data into a single blob, reducing costs and improving efficiency
- Bidding system where users specify how much they are willing to pay for blob inclusion, with signatures for data authentication
- Solves the NP-hard problem of finding the optimal blob composition to minimize costs
- Web interface and API for easy submission of blobs to the Ethereum network
- Research and publications on mechanism design, including EIP-1559 dynamics, Execution Tickets, and MEV supply chain analysis
- Agent-based modeling and simulations to predict market dynamics based on protocol changes