Questions tagged [design]

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11
votes
3answers
119 views

How to upgrade a smart contract?

I'm building a smart contract that is sort of an index of signed documents (pointing to ipfs for the actual docs). What if I want to add some functionality to my app down the road and need to upgrade ...
6
votes
3answers
57 views

What is the design decision to have transactions include recent block hashes?

I would like to understand the rationale behind this. This behaviour currently prevents the generation and signing of transactions on an offline machine that can then be later broadcasted to the ...