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Child abuse images hidden in crypto-currency block chain

bbc.com

11–20 of 83 posts

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

#11
BSV is, apparently, yet another bitcoin fork — it’s a 4 month old Chinese bitcoin fork with 1 released version and a very vague website[1]. BBC does not explain at all how this differs from Bitcoin or the relevance of this coin.

[1]: https://bitcoinsv.io

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

#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 were looking for something to point and laugh at on this front, they didn't understand the technicalities of what they were talking about _at all_.

This BBC article makes an interesting claim:

"In January, the amount of data that could be added to the BSV block chain was increased significantly.

Before that, people could generally add only short chunks of text or web links to the block chain.

But now it is possible to add full images in an encoded format."

I've never heard of this BSV coin before, so I don't know the details of this change. Assuming it's a fork of bitcoin and all they did was increase the allowable size of the OP_RETURN, this will once again be sensationalist reporting with no substance. I'd imagine the first thing BSV nodes would do is prune the OP_RETURN garbage because who wants to be paying the storage cost of other peoples embedded images?

But hey, the BBC article is extremely light on details. Maybe this is something that can't be pruned so easily? Does anyone know?

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

#13

> He said there was "ongoing research" to find ways to remove such content from block chains but these were "not yet mature". Either you have centralization, which nobody wants, or you have a bot that everyone agrees on to censor things, and people will will always find ways around bots. Are there really any other alternatives?

I've seen some recent research proposals: https://www.computer.org/csdl/proceedings/sp/2019/6660/00/66...

The basic idea is you have a way to delete the data associated with an old transaction but not the transaction itself. A majority have to agree to the redaction though and the fact something has been redacted is recorded.

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

#14

So, the easiest for the government to destroy blockchain is to supplant their own illegal images onto the blockchain themselves...

The easiest way is just to let the *coin fad die out and blockchains be relegated to genuine necessary uses and/or the dust pile of history.

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

#15
> Returning to our analogy, the publisher of a best-selling book might announce that the first letter of every line in the book can be interpreted as a sequence of pixels that represents a pornographic image of a child. Can the police then arrest owners of the book? Common sense suggests that the answer is no, and most lawyers would agree.

https://www.wired.com/story/why-porn-on-the-blockchain-wont-...

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

#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 these images would security cameras need to wipe any data caught?

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

#20

BSV is, apparently, yet another bitcoin fork — it’s a 4 month old Chinese bitcoin fork with 1 released version and a very vague website[1]. BBC does not explain at all how this differs from Bitcoin or the relevance of this coin. [1]: https://bitcoinsv.io

It’s principally backed by Craig Wright (Australian with dubious claim of being Satoshi, original creator of Bitcoin) and Calvin Ayre (investor born in Canada). I wouldn’t categorize it as Chinese (Bitcoin Cash/BCH is probably better categorized that way, being backed by Bitmain)
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