An analysis of why open blockchain networks offer superior legal and regulatory advantages for institutions managing critical financial operations, using the October 2025 AWS outage as a case study demonstrating the risks of centralized sequencers and single points of failure.

This article examines the legal and risk management case for open blockchain networks versus private or Layer 2 solutions with centralized operators. The October 20, 2025 AWS outage caused Base and other Layer 2 networks to degrade due to single sequencer dependencies, while distributed blockchain networks continued uninterrupted. The author argues that regulators will increasingly scrutinize concentration risk, asking institutions hard questions about technology choices, points of failure, and auditability. Open networks provide three key legal advantages: superior auditability (regulators can verify independently), competitive neutrality (no single gatekeeper), and operational resilience (distributed validators across geographies). The article contends that asset-level controls and network-level openness are complementary, not contradictory, and that major financial institutions have already concluded this architecture is superior for regulated assets.