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None. Suffer. (lemmy.world)
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[-] DannyBoy@sh.itjust.works 0 points 4 days ago

If you had 51% of the world's computing power (to blockchains using proof of work) yes you could forge records, from what I could wrap my head around about blockchains.

[-] Strykker@programming.dev 9 points 3 days ago

You don't need 51% of the world's power though, just 51% of the power of people who care about how the system works. Most people using block chain cryptos don't care at all, so the threshold is a tiny percentage of the user base.

[-] DannyBoy@sh.itjust.works 2 points 3 days ago

Yeah you're right. I was thinking specifically Bitcoin and the astronomical amount of compute power that's behind it.

[-] hddsx@lemmy.ca 1 points 3 days ago

That’s proof of work. Proof of stake is you just need more than everyone else, right?

[-] ConnecticutKen@lemmy.world 2 points 3 days ago* (last edited 3 days ago)

It works more like loaning money and then receiving interest, except you are loaning crypto to the network and then you get it back, plus some, after a certain period of time

[-] hddsx@lemmy.ca 2 points 3 days ago

Is the network not considered a third party

[-] ConnecticutKen@lemmy.world 2 points 3 days ago* (last edited 3 days ago)

This would just create a fork in the blockchain where 51% of the network doesn't match the correct state of the blockchain that the 49% have. The 49% would effectively stop working because they could never validate the transactions that the 51% takeover has falsely created. The node operators of the 49% of the network would need to reach consensus for how to deal with the problem, but essentially they would just adopt code that ignores the 51% data, so they could continue to process blocks of transactions. Without manual intervention the 49% would be frozen. The 51% is just fake, they haven't really changed anything because every real node operator would know it's false data.

[-] hddsx@lemmy.ca 3 points 3 days ago

What if the 51% have already completed the consensus process?

this post was submitted on 13 Nov 2024
498 points (98.4% liked)

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