When an asset exists on several domains at once, its state has to be coupled across those domains in some form. The case this post is about is the one where that coupling must be causal, not merely observational. If a state transition that takes effect in one domain fails to reach another, the interval in between becomes an undefined region for both markets and regulators, and the two domains start treating the same asset as two different facts. Existing cross-domain message-passing infrastru...

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