Asymmetric Quorum Systems

Definition ∞ Asymmetric quorum systems are distributed agreement mechanisms where the sets of participants required for operations differ based on the operation type. For example, a write operation might need a different group of nodes to agree than a read operation. This design allows for optimized resource allocation and fault tolerance tailored to specific system functions. It introduces varying levels of trust and availability requirements among participating nodes.
Context ∞ In decentralized networks, asymmetric quorum systems are relevant for enhancing security and efficiency in specific operations, such as state updates or data retrieval. News articles might discuss their application in advanced consensus protocols or sharding solutions aimed at improving blockchain scalability. The design presents challenges in maintaining overall system consistency and security across diverse quorum configurations. Achieving robust performance is a key aim.

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→BFT Protocols

→Byzantine Fault Tolerance

→Ledger Ordering

Asymmetric Trust DAG Consensus Achieves Constant-Round Asynchronous Agreement

This research introduces the first DAG-based consensus using asymmetric quorums, allowing nodes' subjective trust assumptions to secure high-performance asynchronous protocols.

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→Shared Memory

→Decentralized Trust

→Distributed Systems

Asymmetric Quorum Systems Model Subjective Trust for Decentralized Consensus

Introducing Asymmetric Byzantine Quorum Systems formalizes subjective node trust, paving the way for resilient, heterogeneous, and flexible consensus architectures.

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→Byzantine Fault Tolerance

→Decentralized Trust Model

→Protocol Extension

Asymmetric DAG Consensus Unlocks Constant Finality with Local Trust Assumptions

By extending DAG-Rider to use asymmetric quorums, this work achieves constant-time BFT finality under realistic, locally defined trust models.

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→Fault Tolerance

→Common Core Primitive

→Byzantine Fault Tolerance

Asymmetric Trust DAG Consensus Achieves Constant-Time Finality

The new common core primitive enables asynchronous DAG consensus to achieve constant-time finality under heterogeneous, asymmetric trust assumptions.

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→Formal Security Proof

→Randomized Asynchronous Consensus

→Validity Property

Asymmetric Quorums Enable Provable Subjective Trust in DAG Consensus

A new model for asynchronous consensus replaces the universal trust assumption with subjective node-specific quorums, enabling formally verifiable safety in flexible, open networks.

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→DAG Consensus Protocols

→Trust Assumption Realism

→Scalable Distributed Systems

Asymmetric Quorums Unlock Scalable DAG Consensus under Non-Uniform Trust

A new asymmetric common core primitive fundamentally redesigns DAG consensus, enabling high-performance protocols that tolerate non-uniform, realistic trust assumptions.

Asymmetric Quorum Systems

Asymmetric Trust DAG Consensus Achieves Constant-Round Asynchronous Agreement

Asymmetric Quorum Systems Model Subjective Trust for Decentralized Consensus

Asymmetric DAG Consensus Unlocks Constant Finality with Local Trust Assumptions

Asymmetric Trust DAG Consensus Achieves Constant-Time Finality

Asymmetric Quorums Enable Provable Subjective Trust in DAG Consensus

Asymmetric Quorums Unlock Scalable DAG Consensus under Non-Uniform Trust

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