gtrubetskoy

15 ms·

91.
by gtrubetskoy 9y ago
Agreed, it's definitely not full-proof by any stretch. But it's amazing how many people enter their WiFi password into devices they really have no control over that can then for example sniff your network, slowly but steadily crac
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by gtrubetskoy 9y ago
One simple way to improve your security at home is to have a "guest" WiFi network which is separate from your real one and which all these questionable IoT devices can use.
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by gtrubetskoy 9y ago
> You don't sign to check stupidity Right, you use your brain to check for stupidity, and once that check is complete, identity, authenticity and consistency of the message does not matter. Bitcoin is a trust-less protocol, you cann
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by gtrubetskoy 9y ago
> Why won't you complain about monitor pixels or the Sun, what a waste of energy that is
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by gtrubetskoy 9y ago
Satoshi could be a whole building of people, we don't know who he was, and so it's not even clear what "authentic" would mean in his case. Integrity of the message doesn't matter - if you see a message and it makes
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by gtrubetskoy 9y ago
> not in this instance not really. why does it matter that this message is authentic? that 2x _really_ isn't going to happen? it can still happen, and it doesn't matter who posts what online.
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by gtrubetskoy 9y ago
It is my understanding that signed messages are generally frowned upon in the Bitcoin community, Satoshi never signed his messages. This is because it is more important what is in the message than who wrote it.
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by gtrubetskoy 9y ago
I have to say I learned more about databases from just studying SQLite code than any book on the subject. I've bought a bunch of books on DB's, some very expensive ones, but I wish someone pointed me to SQLite source early on. To
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by gtrubetskoy 9y ago
All Dr. Tanenbaum is saying is that it would have been the classy thing to let him know, nothing more. Professor Tanenbaum is one of the most respected computer scientists alive, and for Intel to include Minix in their chip and not let him
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by gtrubetskoy 9y ago
> I would argue that the hash rate follows value, rather than the other way round. I do actually say that in the article, in almost those same words. My (perhaps not very well articulated) point was that regardless of what follows what,
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by gtrubetskoy 9y ago
I think you sold too early. I've written a blog on what (in my non-professional opinion, not financial advice, etc.) drives the Bitcoin price. I also believe that the only way for Bitcoin to survive is for it to be much more expensive.
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by gtrubetskoy 9y ago
> Try that today and your old node/wallet will have trouble reading Segwit transactions. If you mean starting an older version of Bitcoin Core after the on-disk storage has been converted by a newer version, then yes, of course. Th
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by gtrubetskoy 9y ago
I'd take issue with Bitcoin being a brand. In my view it's a pretty well defined "thing". Brands are words that need to be trademarked, but "a cow" does not need to be, because everyone knows what a cow is, and
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by gtrubetskoy 9y ago
What about the argument that the only chain that deserves to be called Bitcoin is the one that is completely backwards compatible to all the versions of software dating back to the genesis block?
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by gtrubetskoy 9y ago
To illustrate the point: dietary fiber, which contains a lot of calories, is not digestible. Eat as much as you can, but you will not get one calorie of energy from it. So just based on that, where calories come from matters. There is a dif
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by gtrubetskoy 9y ago
SQLite would cut it just fine. Though it would also need an extension like this one, if you'd want the signature verification and hashing to happen inside SQLite. The difference between SQLite and Postgres would be that more than one c
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by gtrubetskoy 9y ago
It is a PostgreSQL Blockchain Extension, i.e.: a postgres extension [1] which allows one to process a blockchain [2]. The bitcoin blockchain is the first invented blockchain as we know it, all the other blockchains are borrowing the conce
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by gtrubetskoy 9y ago
Is this a variant of Space Saving or Frequent algorithm? Space Saving: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.94.... Frequent: https://stackoverflow.com/questions/3260653/alg
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by gtrubetskoy 9y ago
Cool stuff, interesting choice of language - are you not concerned that this limits you to mostly OSX?
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by gtrubetskoy 9y ago
Apologies, the title should have contained POC. I am not sure what you mean by "blockchain based distributed consensus" - did you mean the the ability to group transactions into blocks and being able to verify those? It's pos
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by gtrubetskoy 9y ago
There is _no_ amount of butter (or fat, in general) that you can eat that will make you gain weight, provided there is no sugar in your diet. You will physically not be able to eat more than your body can deal with, this is because fat, unl
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Show HN: Pg_blkchain – Postgres blockchain extension(github.com)
75 points by gtrubetskoy 9y ago|31 comments
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by gtrubetskoy 9y ago
There's also the oldie but goodie James D'Angelo Bitcoin 101 videos, the blockchain one is https://www.youtube.com/watch?v=gUwXCt1qkBU The elliptic curve one is fascinating, where he has it implemented in like 30
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by gtrubetskoy 9y ago
Nice. You should probably mention that what you are describing is a variant of a Merkle tree. https://en.wikipedia.org/wiki/Merkle_tree
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by gtrubetskoy 9y ago
At least it helps strengthen the crypto-currencies, which is a good thing. I'd be curious how much CPU is wasted rendering billions of ads, especially video, I suspect it's a lot more than the crypto hashing, and three orders of m
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by gtrubetskoy 9y ago
Start out with Bitcoin, and make sure you understand it well. For example it has its own stack-based language (mini smart contracts of sorts), you need to understand how that works, the different types of payments such as P2SH, etc. The O&#
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by gtrubetskoy 9y ago
PoW is how bitcoin blocks are “sealed” forever, which makes bitcoin possible, how is that not useful?
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by gtrubetskoy 9y ago
And Equifax linking to a fake phishing site by mistake, was that also "state sponsored"? Give me a break... The Equifax hack has the hallmarks of Equifax's complete incompetence when it comes to security, and that is all.
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by gtrubetskoy 9y ago
Incidentally I just wrote up some thoughts today on what Bitcoin is: https://grisha.org/blog/2017/09/22/bitcoin-value/ In some way it is fiat, Satoshi's fiat, but that's not the same as US
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Bitcoin: Better Ink Than Gold?(grisha.org)
3 points by gtrubetskoy 9y ago|0 comments

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