ERC-XXXX: Cento Proxy – Index-Based Multi-Facet Proxy

Motivation Over the past several years, the Ethereum ecosystem has shown sustained interest in modular proxy architectures. ERC-2535 (Diamonds) established the first widely adopted standard, and subsequent proposals such as ERC-8109 and ERC-8153 have continued to refine different aspects of the design, particularly around selector management, introspection, and the standardization boundary. While following these discussions, one architectural question kept recurring: Should modular routing fundamentally identify implementation modules through function selectors at all? Function selectors natur