Data Unavailability Unconference @Devcon4

I’ve been exploring solutions to the fair exchange problem where party A wants to atomically swap payment with party B for a verifiable digital good (i.e. some data that might’ve also transformed by some costly computation) - past research/literature includes zero-knowledge contingent payments and this post Fair exchange without a trusted third party. I can talk about some of the general ideas here, how this problem manifests specifically in the context of paying for something like video processing and what some promising directions for further exploration might be. This topic is a slightly different flavor of the data availability problem that is commonly discussed in the context of layer 2 scalability solutions, but it still exhibits some of the same types of headaches like speaker/listener fault equivalence so perhaps people would be up for discussing and maybe there is some overlap with the research on verification games that @nginnever is doing as well.

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