Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Child abuse images hidden in crypto-currency block chain

bbc.com

Post reply on HN
Print view View original

21–30 of 83 posts

Re: Child abuse images hidden in crypto-currency block chain

#21

Post by Tepix »

wolco wrote: post #19

This makes me think. Any data in a certain form could be used to generate an image. What if someone added data in a form that only later after a viewer appeared will it reveal this type of content. This would make any system with that data immediately illegal. Looking down the road what it was encoded in dna would it be illegal for someone to read another person's dna? If someone had a tattoo on there face of one of…

Remember that every imaginable image is also somewhere in the digits of pi. You "just" have to find it. Does that make the number pi illegal? I guess not. Does it make programs illegal that can calculate those digits of pi? Doesn't sound reasonable, does it?

Re: Child abuse images hidden in crypto-currency block chain

#23

Post by afgkonionio »

Hello71 wrote: post #10
tivert wrote: post #4

So, possession of the Bitcoin blockchain is now illegal, according to the laws of most developed countries.

This is "Bitcoin Satoshi Vision", which is completely different and appears from a quick Google search to be completely irrelevant.

Of course it's completely irrelevant. It's a cryptocurrency.

For a cryptocurrency, it's relatively important. It's not one of the big boys, but it's supposedly worth $1 billion.

Re: Child abuse images hidden in crypto-currency block chain

#24

Post by gjs278 »

blincoln wrote: post #5

Possession of this type of image is a federal crime in the US.[1] When I took a digital forensics course about five years ago, we were told that if we ever discovered any on a system we were investigating, it needed to be reported to the FBI immediately or we could also be charged. If someone does this in a way that goes unnoticed, and it's discovered after long enough that rolling back is impractical, does that effe…

you better report this now or else you’ll go to jail, right?

Re: Child abuse images hidden in crypto-currency block chain

#25

Post by Tepix »

blincoln wrote: post #5

Possession of this type of image is a federal crime in the US.[1] When I took a digital forensics course about five years ago, we were told that if we ever discovered any on a system we were investigating, it needed to be reported to the FBI immediately or we could also be charged. If someone does this in a way that goes unnoticed, and it's discovered after long enough that rolling back is impractical, does that effe…

Related:

What's the smallest piece of data that qualifies?

Can a 16x16 image be illegal?

What about a 64x64 image?

What's the situation like if you have two chunks of data (perhaps at two separate locations on the blockchain) and only if you XOR them you get the illegal image?

Re: Child abuse images hidden in crypto-currency block chain

#27

Post by giornogiovanna »

AdmiralAsshat wrote: post #17

Aren't we getting back to the hypothetical question that any image, digitally encoded, would theoretically exist at some index of any infinite number (e.g. Pi), given enough digits? Is the possession of Pi then illegal?

Very far-off digits of π (assuming π is even a normal number) are not easily accessed or enumerated. In fact, you'd probably need more information to encode the index and length of your sequence than you would to just write the data out. In contrast, a block chain is easily downloaded and traversed, indices are small, and most importantly, there is a very, very obvious intent to distribute illegal content. I don't think that these situations are comparable.

Re: Child abuse images hidden in crypto-currency block chain

#28

Post by detaro »

_m7bj wrote: post #12

Ah, this old chestnut. So from the last time this came up: https://thebitcoinnews.com/no-there-isnt-child-porn-on-the-b... With the important bit here: 80 bytes is all that OP_RETURN can store, and what’s more that information is subject to deletion. That’s because bitcoin nodes are capable of pruning “provably unspendable” UTXOs for efficiency, which include OP_RETURN data. TL;DR the last time the schadenfreudists w…

Following links from the article:

https://blog.moneybutton.com/2019/01/26/how-we-added-support...

https://www.yours.org/content/the-unfuckening-of-op_return-b...

"We’re about to take the red pill and see how deep the rabbit hole of on chain data storage really goes. Tokenized is ready for this, yours.org is ready for this, @_unwriter and his plethora of tools are ready for this as are others. Calvin Ayre has previously spoken of the ‘Cambrian explosion’ of creativity and I believe that unbounded-by-anything-except-fees data storage will be a key trigger for this."

Re: Child abuse images hidden in crypto-currency block chain

#30

Post by SamReidHughes »

blincoln wrote: post #5

Possession of this type of image is a federal crime in the US.[1] When I took a digital forensics course about five years ago, we were told that if we ever discovered any on a system we were investigating, it needed to be reported to the FBI immediately or we could also be charged. If someone does this in a way that goes unnoticed, and it's discovered after long enough that rolling back is impractical, does that effe…

You can update the program to special-case those blocks, with old hash values and replacement hash values.
Post reply on HN