EIP Fun Weekly #87: Clawback Transactions, Blob Scaling, and Crosschain Interoperability
A weekly resource exploring the latest EIPs, ERCs, key updates in the Ethereum protocol.
Welcome to read the 87th issue of EIP Fun Weekly. Let's take a look at what happened in the EIP community last week.
Meeting Updates
Ethereum All Core Developers Execution Call #206
Pectra Upgrade
Holesky Recovery: Holesky testnet failure was caused by misconfigured validator deposit addresses in Geth, Nethermind, and Besu clients, causing a chain split.
Recovery Plan: Sepolia testnet upgrade on March 5 will include updated client software to address the Holesky issues.
Mass Slashing Event: A mass slashing event may be triggered to help finalize the correct version of Holesky, though there are concerns about its effectiveness and long recovery time.
Sepolia Upgrade: Sepolia upgrade is still scheduled for March 5 with mandatory updates for Geth, Nethermind, Besu, and Lodestar clients.
Time Constraints: Due to time limits, some topics, like Fusaka, were not discussed and will be raised in future meetings.
Weekly EIP & ERC Highlights
EIP-7890: Clawback Transactions for EOAs
Introduces a cap of 30 million gas for transactions to improve network stability and prevent DoS attacks.
Purpose: Introduces a new Ethereum transaction type (0x05) that allows senders to reclaim funds within a clawback window before final settlement, offering enhanced security for EOAs and providing a decentralized safety layer for recovering funds lost due to errors or unauthorized transfers.
Key Benefits:
Fund Recovery: Provides an option for senders to reclaim mistakenly sent funds or funds transferred from compromised wallets before final settlement.
Security Enhancement: Reduces the risk of irreversible loss from errors, hacks, or malicious transfers.
No Central Authority: Operates entirely within the Ethereum protocol, without the need for centralized arbitration or third-party involvement.
Key Components:
Clawback Window: A delay period (in blocks) that allows the sender to reclaim funds before final settlement.
Transaction Type (0x05): A new transaction type specifically for clawback-enabled transactions.
Recovery Address: An optional address (
clawbackAuth) that can initiate a clawback on behalf of the sender.Transaction Structure: Includes fields for the clawback period and recovery address.
EIP-7892: Blob Parameter Only Hardforks
Introduces a mechanism for scaling Ethereum’s blob capacity through specialized hard forks that adjust only blob-related parameters, enabling more agile and efficient scaling.
Purpose: Introduces a lightweight mechanism for incrementally scaling Ethereum’s blob capacity via hard forks that modify only blob-related parameters.
Key Benefits:
Continuous Scaling: Allows for frequent and safe scaling of blob capacity in response to growing Layer 2 demand.
Reduced Overhead: Simplifies upgrades by only modifying blob-related parameters, avoiding the need for extensive coordination.
Stability with Scaling: Enables developers to adjust blob parameters after observing real-world network performance.
Predictable Upgrades: Provides a structured framework for developers to confidently scale Ethereum to meet Layer 2 needs.
Key Components:
Blob Target (
blob_target): The expected number of blobs per block.Blob Limit (
blob_limit): The maximum number of blobs per block.Blob Base Fee Update Fraction (
baseFeeUpdateFraction): Determines how blob gas pricing adjusts per block.BPO Fork Schedule: Defines when blob parameters are updated using a schedule that is shared between execution and consensus clients.
EIP-7888: Crosschain Broadcaster
Defines a standardized protocol for trustless cross-rollup message broadcasting using storage proofs, enabling secure and decentralized message passing across rollups with a common ancestor chain.
Purpose: Defines a standardized protocol for trustless cross-rollup message broadcasting and reception via storage proofs, enabling messages to be broadcasted on one chain and read by others with a common ancestor chain.
Key Benefits:
Cross-Rollup Interoperability: Enables trustless message passing between rollups on different architectures, supporting interoperability across chains.
Decentralized Messaging: Broadcasters store messages, while Receivers verify them using storage proofs, ensuring decentralized and secure message distribution.
Flexible Contract Updates: Introduces 'Pointer' contracts to dynamically update storage locations for finalized block hashes, allowing flexibility in evolving rollup contracts.
Key Components:
Broadcaster: A contract responsible for storing messages that can be read by Receivers on other chains. Messages are 32-byte and only non-duplicate messages from a publisher are accepted.
Receiver: A contract that verifies the contents of a Broadcaster on another chain using storage proofs, ensuring messages can be securely read across chains.
BlockHashProvers: Contracts that establish a unidirectional link between two chains, verifying the existence of finalized block hashes through storage proofs.
Other EIPs and ERCs:
Upcoming EIP Events
RollCall #11
Date & Time: March 12, 2025, 14:00 UTC
For more details about the meeting agenda, you can visit here.
All Core Devs - Execution (ACDE) #207
Date & Time: March 13, 2025, 14:00-15:30 UTC
For more details about the meeting agenda, you can visit here.
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