this post was submitted on 09 Mar 2024
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I'll likely get downvoted but Polestar, the EV automaker that used to build performance variants for Volvo, uses blockchain to track minerals used in their EV's.
Circulor Circulor's blockchain technology enables tracing of extracted raw materials, particularly those with significant impact to communities and the environment.
I like that they use blockchain to ensure the minerals they use aren't coming from negative sources but I'm sure someone will argue and say it's stupid or that SQL can do the same.
You could do literally the same thing with a series of private key signed envelopes containing the prior chain of signed content. Boom, verifiable chain of custody without any rainforests being burned down.
I'm hoping you're being hyperbolic about burning rainforests because not every blockchain is power hungry like Bitcoin or the old the POW Ethereum.
Besides, the rainforest is being burned down to make way for more cattle to provide more beef. Not sure why you chose the rainforest as example of intense computational power.
It's somewhat hyperbolic, but in relative terms, it is pretty wasteful to implement it with a blockchain over what I just suggested. Cryptographic consensus doesn't solve anything for the given example that the verifiable chain of custody in my proposed alternative does not and there's zero way it's less expensive than a bunch of asymmetric signatures that can be verified offline on demand. If anything, it's better than a blockchain since it would only require a majority of parties to be complicit in a lie to rewrite history in a blockchain full of parties that have no business with any given transaction other than to enforce immutability whereas it would require every single node in the chain of custody before you to be complicit in my proposal.
And I'm surprised that the rainforest thing confuses you. It and burning tires are the go-to colloquialisms for complaining about things that are unnecessarily environmentally hostile, particularly when talking about crypto crap. But yeah, blockchains are a solution in search of a problem, so the derision is intentional. There's no legitimate problem that can be solved with blockchain that can't be solved in a better way. Cryptocurrency only in theory and this supply chain problem are the closest it gets to blockchain making sense and it still fails to be better than non-blockchain alternatives.