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▲ wyre 4 hours ago | parent | next [-]

I could be projecting, but I think a lot of people here don't have a deep understanding of blockchains because the past 15 years has been full of crypto scams and would rather put their time, energy, and attention into better technologies. Proof of existence is the first real utility for bitcoin besides as an investment vehicle or decentralized transfer of money, so I think it's fair that other's would want to know how it works.

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jon128 4 hours ago | parent [-]

More Americans get their understanding of the world from TV tier media than reading original sources.

Both for technology and law.

Illiteracy is rampant.

Critical thinking is oddly uncommon.

It's unfortunate and unsustainable.

	▲	DeluluDon 2 hours ago \| parent [-]
		It's extremely bad here, including expectations of others.

▲ nilamo 5 hours ago | parent | prev [-]

> It's called a SHA512 hash or a SHA256 hash. You're posting on a site called "Hacker News", if you aren't already familiar with SHA512 and or at least SHA256 you should probably be just a little bit embarrassed.

lmao the absolute nerve of saying I should be embarrassed for not already knowing about some weird side purpose you're using a blockchain for.

Has this ever actually been used for anything legal? This feels like it'd be tossed out of court for being too ridiculous. "It's proof because I said it's proof, and you have to trust me on that mr judge"

▲ jon128 4 hours ago | parent [-]

>> Has this ever actually been used for anything legal?

See the cases by/against Craig Wright who falsely claimed to be the originator of Bitcoin and not a mere contributor (and whether he made contributions that made a real impact is also in question). The Blockchain provided mathematical proof that Craig Wright is a fraud. The very private key Wright claimed to own was used to post on the Satoshi Blockchain: "Craig Wright is a fraud" which absolutely nuked Wright in court.

So, yes, in the biggest way possibly possible on a cosmic scale.

Proof of Existence has been used for evidence in courts for much less interesting things. It's been old news for a while now.

>> "It's proof because I said it's proof, and you have to trust me on that mr judge"

This objectively tells everyone reading this you don't already comprehend what SHA256 and SHA512 are, which is what you should be embarrassed of.

Not the part that these hashes posted alongside filenames of their respective files on the Satoshi Blockchain has been used for real-world applications for over a decade, which you should have uncovered in a web search I suggested you do in my previous comment, which you obviously did not do.

It's fine, everyone has to start somewhere. And you learned something today, unless this discussion has rustled your jimmies such that this opportunity for your learning and improvement is self-blocked, which given this is "Hacker News" and not Facebook, and we are total strangers to each other, would be even more embarrassing...

I will save this thread as a PDF and put the PDF's sha512 hash on the Satoshi Blockchain so that everyone for all eternity can know at around this time you posted dumb things in an arrogant manner on this thread.

You are living in a Blockchain era. This is how powerful Blockchains really are. Neat how that works innit.

▲ nilamo 4 hours ago | parent [-]

> I will save this thread as a PDF and put the PDF's sha512 hash on the Satoshi Blockchain so that everyone for all eternity can know at around this time you posted dumb things in an arrogant manner on this thread.

Well hang on now, because it sounds like you don't know what a one-way hash is. If you put the hash on the blockchain, no one except you will be able to read the pdf. Because the hash isn't anything except a hash, and cannot be unwound to create the pdf. So nothing would be recorded for all time, except a random string that means something to you, and only to you.

▲ jon128 4 hours ago | parent [-]

<3

The file itself will be available on IPFS and will be posted in an S3 or similar bucket. I'll make a torrent too.

  cat  ./file  ./salt    |    shasum -a 512

	▲	ImPostingOnHN 2 hours ago \| parent [-]
		thank you for your explanations how can we verify that a file was not altered before checksumming and uploading it?