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Re:Microsoft is shutting down its Azure Blockchain Service by SideburnsOfDoom on Thursday May 13, 2021 @08:10AM (#27141195)
> The purpose of blockchain is to solve what happens when neither side of a transaction trust the other.

So what's the purpose of _private_ blockchains then? Grandparent comment was about "Permissioned blockchains can be useful..." not blockchain in general.

How does it remain private in a trustless case?

Alternatively, who keeps the blockchain private? Who manages access? If there is an impartial 3rd party, an "authority" or a "broker", a "governor" that all other parties can trust to do that, even if they don't trust each other ... can't that authority just use a database, with some checksums and signed rows if need be? What can't you get from a private github repo?

Is the "private blockchain" centralised or decentralised?

I feel that every time I see this discussion, the argument is shifted to a straw man whenever the wrong question is asked.

Re:Microsoft is shutting down its Azure Blockchain Service by jnwatson on Thursday May 13, 2021 @12:59PM (#27144470)
There's no purpose of private blockchains, unless your definition of blockchain is just chained signatures perhaps with a Merkle tree.

The intersection of the set of "private" and "mutually distrustful parties" is essentially 0.

Re:Microsoft is shutting down its Azure Blockchain Service by SideburnsOfDoom on Thursday May 13, 2021 @01:23PM (#27144737)
That's what I thought, but I'd like to see a proponent of private blockchains explain it with out resorting to answering a different and more general question about "the purpose of blockchain is..."