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With the proposals/proposers being paid by the hour, funding can stop pretty sharpish. I think a weekly (burned) progress report is reasonable. Most contract work is 1 week to a month tops on termination notice? It's the hit employees have to take for getting someone in quick, and them not being up to scratch.

Here, reputation is perhaps more important than in the real world as negative references are not the norm. It'll be in the blockchain history who's not delivered what's been promised, and they will unlikely get funding in future, i assume.