Block subsidy spending limit about sia HOT 3 CLOSED

What makes subsidies special is that they can be reversed easily. A miner doesn't need to intentionally double spend, if there's a reorg than someone is going to be out their subsidy.

This same problem applies to storage proofs - you can invalidate storage proofs simply by reorganizing the blockchain (this will change the random seed that is used for determining which segment the host needs to prove possession of).

If we implement a spending limit for miners, it also needs to be in place for storage proofs.

from sia.

And finally, sianote security also needs to work this way, because the implementation I'm thinking of will also have variable outputs depending on what fork you are on.

from sia.

It might be worth making it a consensus rule that storage proofs are exclusively allowed to have miner fees and storage proofs. Otherwise the spending limit safety stuff gets pretty complicated. That means inputs have to perfectly match the miner fees, no refunds.

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