Also in my opinion, you are fundamentally responsible for being your own block emitter. If you want to spend a cryptocurrency you obtained, and your blocks have not propagated enough you may need to provide the store with a large packet containing all the blocks/chains necessary to fully trace the inputs to your transaction for validation.
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Thank you for your input. I look forward to hearing your design.
Your design is not secure in terms of all nodes (users' chains) seeing a consistent ordering, because the set of possibilities is unbounded and you can't disprove a negative in an unbounded universe. It is covered in my whitepaper. Raiblocks already invented what you did, and they tried to arrive at consensus with voting but @monsterer and I explained why that was flawed.