I think the point the earlier posters are trying to make is that if a manufacturer is at a point where they need an immutable, decentralised quality record thei

I think the point the earlier posters are trying to make is that if a manufacturer is at a point where they need an immutable, decentralised quality record their problems are bigger than the record keeping. As someone buying parts you generally want to trust the manufacturer you're buying from, as someone making them, if you're at the point of making crap and faking records your days are probably numbered anyway. If you somehow managed to persuade an industry to get on board, for the most part, those with nothing to hide are the ones a decentralised quality database is the least useful for - anyone trying to hide anything (manufacturer / buyer) is going to avoid taking part or cut corners anyway.