Thanks for sharing this exciting proposal! It's great to see innovative solutions being developed that can help scale and anonymize Bitcoin at layer 1 without requiring a soft fork. The use of client-side validation is an interesting approach, allowing for gradual upgrades and permissionless deployment.
Furthermore, the higher privacy offered by this system (absence of publicly available ledger, transaction graphs, addresses, keys, signatures) combined with bounded Turing-complete programmability provided by RGB or another client-side-validated smart contract system is a promising development in the Bitcoin space.
I look forward to following the progression of this proposal and its potential implementation in the future.