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I am working on a Groupon like site in Pakistan. In order to make it successful, I need a payment system that people will use to prepay for the deal. The payment systems in the market are very nascent and require more time to get mature. I have two choices, 1. Partner with a payment systems and use their service for the payments. 2. Create my own payment system and integrate it with the app. Which selection should I go for?

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I worked in Canada, in the Oil industry, CAD took a big hit in the exchange versus USD, can anybody advice me if transferring my money to Bitcoin can help me increase the value of my savings again? Since I do not live in Canada anymore and I need USD.

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A lot of papers about cryptocurrencies explain the concept of the "longest chain", which goes along with these kind of figures: I was wondering if there exist any kind of visualisation tool for these kind of discarded block chains within Bitcoin itself? There are a lot of visualisations available for transactions, but I'm interested in the amount of block chains that did not make it into the final blockchain (blocks that were discarded because they were no longer the longest chain).

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Will signing message (without doing any $ transaction) reveal the private key to the blockchain just the same/similar way the private key is revealed to the blockchain when you do a $ transaction? The point is, doing a transaction weakens the security of the address a tiny bit because the private key is revealed to the blockchain. That's one reason why change/new address is used with every transaction. But what about just signing message? Will that weakens the security of the address a tiny bit too?

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Or do I have to use a computer that has never used the internet?

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What is the underlying mechanism? Do you transmit a message to a local node who then relays it? How does that relay work? I know about DNS seeding but then how does the rest of the relaying occur? If every node transmitted every transaction it received then thats a lot of network use and a lot of retransmitting the same message to the same nodes.

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I will be getting interviewed very soon (tomorrow). I have ADD¹. Without going into a whole lot of detail about what that is/isn't, it's enough to say that it's difficult for me to concentrate/focus, among other things. This causes mid-interview anxiety and frustration. Because of this, technical job interviews have the potential to cause, and have caused, enough anxiety to actually become dizzy/lightheaded and nauseous mid-interview, which, needless to say, can make it nigh impossible to answer even simple questions, write code on a shared board/document, and, overall, have a reasonably successful interview.

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I’m a junior developer at a small SaaS company following a variation on Scrum. I have observed that stories often reach my team before the business requirements are fully fleshed out. The development team often brings tasks to near-completion only to learn that the product owner has just discovered a new, crucial requirement that forces us to rework our implementation. Other times, developers discover that recently deployed changes had first and second order effects on the business that were unanticipated (and unwanted) by the product owner and stakeholders that requested them. These revelations typically trigger a series of code "fixes" and various other kinds of remedies.

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I have a "good" but so far boring corporate job (Sr. PHP dev) in a german pharmaceutical company, at Argentina, with good benefits (gold health insurance, 3 weeks vacation, paid lunch and snacks). I have an opportunity to work for an UK, London-based small company, remotely as PHP Dev + DevOps, something that I would love to do. But they want to hire me as contractor. Basically as freelancer, but they want me to stay working from 9.30 to 18.30 (UK time). They don't give me paid vacations, or sick leave, neither Health Insurance. They also offered me the same amount of money than my current job (they benchmark the living cost of the local country).

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I was dismissed from my job after 10 years of employment. Should I include it in my CV? I also have worked elsewhere since the dismissal occurred, however it was all short term work. One job for about 2 months. I left because I didn't enjoy it. There is another which I'm currently employed (5 months). If I left the job I was dismissed from off of my CV, would my employment gap be a big deal? I have been in education during those 10 years.

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