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ruiquelhas

Re:In MySQL, use “utf8mb4” instead of “utf8” (2016) on Thursday January 13, 2022 @01:19PM (#29924451)
It kind-of is "wired" to a "physical" representation, but in a different sense.

https://blog.koehntopp.info/2022/01/12/utf8mb4.html#so-what-...

I get that, but there are no guarantees it is write-once, because it might happen that the "quorum of signatures" changes their mind.
Re:Walmart Requires Lettuce, Spinach Suppliers to Join Blockchain on Wednesday September 26, 2018 @08:32AM (#18075227)
Is it really write-once though? I'm pretty sure there's no PoW involved (didn't bother to read) so all bets are off.
*He
I tried to promote some quantum computer scam as well, IIRC.
Why is Mongo a bad option for a document store? Serious question.
Re:Bitcoin is a Cult on Monday June 25, 2018 @12:43PM (#17393761)
Silk Road, Alphabay et al.
By looking only at the title, I actually thought for a brief moment that this would be a story about Ethereum.
It depends. If it mentions just plain P2P stuff, it might be. If it mentions blockchain or involves some kind of ICO then is probably more like "Ponzi Scheme for X".
> All three advertising-driven sites are phasing out ads for cryptocurrencies, shielding themselves from potential legal liability if the ads are scams or the digital coins are eventually regulated as securities.

There isn't any other reason for these platforms to have any kind of usage whatsoever as of today. The creator of one of those so-called blockchains is a known scammer himself, so I guess it makes it full-circle.

Re:Building for the Blockchain on Wednesday January 10, 2018 @05:02AM (#16113763)
Re:Building for the Blockchain on Tuesday January 09, 2018 @07:01PM (#16111369)
And why would I need the tokens in the first place? Hell, why would I need to pay at all, given that there are free alternatives like Medium?
Re:Building for the Blockchain on Tuesday January 09, 2018 @06:54PM (#16111322)
I don't know about so called blockchain projects like ethereum, but bitcoin has value because it has inelastic demand. There are a lot of underserved people out there that need bitcoin, regardless of its value, in their daily lives because they can't use fiat currency for things like buying quality drugs online, getting rid of ransomware, laundering money, etc.

Hell, if these don't pass the ideological test, just ask someone from Venezuela why do they need bitcoin.

Re:Building for the Blockchain on Tuesday January 09, 2018 @06:45PM (#16111249)
That does not say anything about censorship resistance, because it does not mean the transactions can be reversed (on the contrary).

That's a problem of anonymity (or lack thereof).

Re:Building for the Blockchain on Tuesday January 09, 2018 @06:41PM (#16111231)
Actually, according to the original definition - https://github.com/trottier/original-bitcoin/blob/92ee8d9a99... - it does, since blockchain is bitcoin (and vice-versa), and as far as anyone can tell, currently it is indeed trustless and censorship resistant.

The problem is that some people adopted blockchain as some kind of weird gimmick to wrap extraordinary claims such as the ones in the original post and promote scams (altcoins, appcoins, whatever).

Re:What Is Ethereum? on Saturday July 08, 2017 @05:23AM (#14724740)
Don't need a whole website to tell me it is just a vehicle for fraudulent securities.
I'm pretty sure it is a really good chunk. Probably only trumped by drug deals.
Re:Ask HN: Who wants to be hired? (October 2016) on Friday October 07, 2016 @09:48AM (#12660612)
Location: Portugal

Remote: Yes

Willing to relocate: No

Technologies: JavaScript, Node.js, MongoDB, PostgreSQL, Redis, React, Redux, Cordova/Phonegap

Résumé/CV: upon request

Email: rfpquelhas at gmail.com

Github: https://github.com/ruiquelhas

My name is Rui Quelhas, I'm a 29 year old software developer from Portugal. I have a computer engineering degree and a masters in computer networks. I've been part of the software industry since 2010 and worked on a few different projects in markets such as Social Media, IoT, Consumer-internet/SaaS and Fintech/cryptocurrencies.

Lately, I've been working mostly as backend engineer and worked on (and lead) a few biggish Node.js projects (API, 3rd-party integrations and that kind of stuff).

I'm currently looking for other challenges in the same spectrum, particularly remote positions.