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Information Where to buy Bitcoin
Posted by: skyguy - 12-06-2017, 05:12 AM - Forum: CryptoCurrency - Replies (1)

United States / UK

Coinbase is probably the fastest and easiest way to buy bitcoins in the USA and UK. If you need bitcoins fast, then buying with a credit card or debit card is a good option. Coinbase charges 3.99% fees for credit/debit card purchases but you can get your coins instantly.

Another payment option for US customers is using a connected bank account. The fees are less for this method-1.49%--but your coins are only delivered after five days. 


Europe

CEX.io
CEX.io lets you buy bitcoin with a credit card, ACH bank transfer, SEPA transfer, cash, or AstroPay. Purchases made with a credit card give you access to your bitcoin immediately. CEX.io works in the United States, Europe, and certain countries in South America.

South Africa

LUNO

Luno facilitates Bitcoin storage and transactions such as buying, selling and paying through their Bitcoin wallet services. They also operate exchanges between fiat money and bitcoin

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Information What is Bitcoin
Posted by: skyguy - 12-06-2017, 04:42 AM - Forum: CryptoCurrency - Replies (3)

From the coindesk.com website

Bitcoin is a form of digital currency, created and held electronically. No one controls it. Bitcoins aren’t printed, like dollars or euros – they’re produced by people, and increasingly businesses, running computers all around the world, using software that solves mathematical problems.

It’s the first example of a growing category of money known as cryptocurrency.

What makes it different from normal currencies?
Bitcoin can be used to buy things electronically. In that sense, it’s like conventional dollars, euros, or yen, which are also traded digitally. 
However, bitcoin’s most important characteristic, and the thing that makes it different to conventional money, is that it is decentralized. No single institution controls the bitcoin network. This puts some people at ease, because it means that a large bank can’t control their money.

Who created it?
A software developer called Satoshi Nakamoto proposed bitcoin, which was an electronic payment system based on mathematical proof. The idea was to produce a currency independent of any central authority, transferable electronically, more or less instantly, with very low transaction fees.

Who prints it?

No one. This currency isn’t physically printed in the shadows by a central bank, unaccountable to the population, and making its own rules. Those banks can simply produce more money to cover the national debt, thus devaluing their currency.

Instead, bitcoin is created digitally, by a community of people that anyone can join. Bitcoins are ‘mined’, using computing power in a distributed network. 
This network also processes transactions made with the virtual currency, effectively making bitcoin its own payment network.

So you can’t churn out unlimited bitcoins?

That’s right. The bitcoin protocol – the rules that make bitcoin work – say that only 21 million bitcoins can ever be created by miners. However, these coins can be divided into smaller parts (the smallest divisible amount is one hundred millionth of a bitcoin and is called a ‘Satoshi’, after the founder of bitcoin).

What is bitcoin based on?

Conventional currency has been based on gold or silver. Theoretically, you knew that if you handed over a dollar at the bank, you could get some gold back (although this didn’t actually work in practice). But bitcoin isn’t based on gold; it’s based on mathematics.

Around the world, people are using software programs that follow a mathematical formula to produce bitcoins. The mathematical formula is freely available, so that anyone can check it.

The software is also open source, meaning that anyone can look at it to make sure that it does what it is supposed to.

What are its characteristics?

Bitcoin has several important features that set it apart from government-backed currencies.

1. It's decentralized

The bitcoin network isn’t controlled by one central authority. Every machine that mines bitcoin and processes transactions makes up a part of the network, and the machines work together. That means that, in theory, one central authority can’t tinker with monetary policy and cause a meltdown – or simply decide to take people’s bitcoins away from them, as the Central European Bank decided to doin Cyprus in early 2013. And if some part of the network goes offline for some reason, the money keeps on flowing.

2. It's easy to set up

Conventional banks make you jump through hoops simply to open a bank account. Setting up merchant accounts for payment is another Kafkaesque task, beset by bureaucracy. However, you can set up a bitcoin address in seconds, no questions asked, and with no fees payable.

3. It's anonymous

Well, kind of. Users can hold multiple bitcoin addresses, and they aren’t linked to names, addresses, or other personally identifying information. However…

4. It's completely transparent

…bitcoin stores details of every single transaction that ever happened in the network in a huge version of a general ledger, called the blockchain. The blockchain tells all.
If you have a publicly used bitcoin address, anyone can tell how many bitcoins are stored at that address. They just don’t know that it’s yours. There are measures that people can take to make their activities more opaque on the bitcoin network, though, such as not using the same bitcoin addresses consistently, and not transferring lots of bitcoin to a single address.

5. It’s non-repudiable
When your bitcoins are sent, there’s no getting them back, unless the recipient returns them to you. They’re gone forever. So, bitcoin has a lot going for it, in theory. But how does it work, in practice? Read more to find out how bitcoins are mined, what happens when a bitcoin transaction occurs, and how the network keeps track of everything.

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  CX - A post-smart contract programming language
Posted by: ranev - 12-04-2017, 08:06 PM - Forum: Development - Replies (6)

CX Programming Language

CX is a general purpose, interpreted and compiled programming language, with a very strict type system and a syntax similar to Golang's. CX provides a new programming paradigm based on the concept of affordances, where the user can ask the programming language at runtime what can be done with a CX object (functions, expressions, packages, etc.), and interactively or automatically choose one of the affordances to be applied.

CX has been successfully installed and tested in recent versions of Linux (Ubuntu) and MacOS X. 

https://github.com/skycoin/cx

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Information Skywallet Downloads
Posted by: skyguy - 12-04-2017, 04:15 PM - Forum: Skycoin - No Replies

All downloads available from the skycoin.net website -> https://www.skycoin.net/downloads/

The current build is v0.25.0. 

To encrypt your wallet, launch the latest version and wait for all blocks to sync. After syncing, click the padlock icon under your wallet address and enter a password. 

**Make sure your seed is backed up before encrypting the wallet**

MacOS 
Installer (.dmg)
zip

Windows Desktop
Installer
32bit zip
64bit zip


Linux Desktop
64bit Installer
arm Installer
64bit tar.gz

Android
Google Play Store
APK

IOS
Apple iOS App Store

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Information Where to buy Skycoin
Posted by: skyguy - 12-04-2017, 04:12 PM - Forum: Skycoin - Replies (33)

At the time of this post, skycoin (SKY) can be bought on five exchanges or via the Skycoin OTC website. In order to buy SKY, you first need to register on a local exchange to convert your Fiat currency (Dollars, Euros, Pounds, RANDs, etc.) to Bitcoin. You then transfer that amount of bitcoin to one of the exchanges below, or the OTC website, and use it to purchase skycoins. See the "How to Buy Bitcoin" thread for more info on converting Fiat to Bitcoin

OTC (Over the counter)
https://otc.skycoin.net/

C2CX
https://www.c2cx.com/in/home

Cryptopia
https://www.cryptopia.co.nz

iquant
https://www.5iquant.org/

9Coin
https://www.9coin.com/coin/60.html

CryptoWolf
https://cryptowolf.eu/

BitRabbit
https://bitrabbit.com/

Binance
https://www.binance.com/

Coinswitch
https://coinswitch.co/coins/bitcoin/bitcoin-to-skycoin

How to buy skycoin on Cryptopia Exchange
Compliments of Erne



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Information Skycoin BB
Posted by: skyguy - 12-04-2017, 03:42 PM - Forum: New to Skycoin - Replies (3)

Skycoin BBS: Social Media for You

On corporate social media, you’re the product. A company controls your data. They sell it to advertisers and store it on their servers. Once you make a post, it’s theirs – forever. You have no control over privacy, technology, or even your own identity. Why should we settle for that?

It’s time for a social media revolution. Skycoin is bringing social media back to you, the user. We’re excited to announce the alpha launch of Skycoin BBS: the first distributed social media platform in the Skycoin ecosystem.

Skycoin BBS is a peer-to-peer replicated social media application built on immutable data structures (CXO) on top of the Skycoin platform. Planned features include:

  • Decentralized network so that you retain your privacy and freedom
  • Ability to post content, upvote, downvote, and comment
  • User profiles
  • Tipping for content with Coin Hours and Skycoin
  • Resistance to network failure
  • Public keys and trust lists that let users filter out spammers, bots, and untrustworthy users

Ready to join? Get started with the Skycoin BBS at: https://www.skycoin.net/downloads/.


Read about the development of Skycoin BBS and chat with the developers: https://t.me/skycoinbbs.


Follow development updates: https://blog.skycoin.net/tags/bbs/.


Check out the technical aspects of Skycoin BBS: https://blog.skycoin.net/bbs/bbs-development-update-1/.


Track coding commits at the Skycoin Github repository: https://github.com/skycoin/bbs.


Get a list of nodes to connect to and boards to subscribe to: https://t.me/skycoinbbshosting.


Watch the Skycoin BBS platform in action in the Development Showcase YouTube 

Videos: .


Skycoin Vision:

Skycoin BBS is a peer-to-peer replicated social media application, built upon immutable data structures (CXO) on top of the Skycoin platform. It’s a communication platform for users, by users. Skycoin BBS is social media done right.

This new web application is one of the first to be implemented using the Skycoin ecosystem. Skycoin decentralizes the internet, encrypting protocols by default. Since Skycoin has no central server, your data isn’t controlled by any central authority. You retain your privacy and freedom.

BBS stands for Bulletin Board System. Traditionally, BBS were do-it-yourself servers that allowed users to interact and share content. Modern BBS offer an alternative vision for the internet: one where users, not corporations, have control. Skycoin BBS takes inspiration from early Bulletin Board Systems to create a decentralized, user-centric social media platform.

Databases in the Skycoin distributed BBS application are replicated peer-to-peer using the Skycoin CXO library, previously called Aether. Users submit posts with a Sky Messenger prototype. This is Skycoin’s TOX-like standard for machine-to-machine communication between public keys (github.com/skycoin/net).

With Skycoin BBS, you can enjoy all the benefits of a social media platform without giving up your data. Planned features include user profiles, posting content, upvotes, downvotes, and comments. You can even tip for content using Coin Hours and Skycoin. Since Skycoin BBS is user-owned, we’re adding more features upon request.

On Skycoin BBS, voting and content curation are transparent. The community can verify data via cryptography, allowing them to easily spot vote manipulation. Users can vote other users as trusted or as spam. A special list will also exist for blocking users.

Skycoin BBS protects against bots. Users can mark bots as spam and discourage others from following them. Although bots can upvote each other, it won’t matter because users won’t mark them as trusted or follow them. Since the bots will have no followers, an algorithm process will ghost the bots and make their actions invisible.

The benefits of Skycoin BBS go beyond user privacy and data ownership. Skycoin BBS also eliminates the danger of corporate and government interference. Unlike most social media networks, Skycoin BBS is decentralized. There’s no central server to shut down and no way for a single entity to monitor communications. Every outbound packet could be communicating with a peer who can forward the message. This peer-to-peer system protects users from third parties and authorities seeking control.

Skycoin BBS is currently in alpha. As we continue to develop this new social media application, early users may experience some bugs or data loss. You can help us improve Skycoin BBS by reporting these incidents when they occur. With your feedback, we can make Skycoin BBS a true revolution in social media.

This is only the beginning. With Skycoin BBS, we’re building a new internet on the Skycoin ecosystem. We did this because we believe people, not corporations, are the key to the internet’s future. We shouldn’t have to sell our digital souls to communicate with each other. Skycoin BBS is decentralizing social media with a peer-to-peer network that brings communication back to the user community. You deserve a better social network – and with Skycoin BBS, you’ve got it.

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Information Obelisk: The Skycoin Consensus Algorithm
Posted by: skyguy - 12-04-2017, 03:31 PM - Forum: New to Skycoin - Replies (1)

[Image: obelisk-the-skycoin-consensus-algorithm.png]

The Skycoin blockchain makes use of a novel type of consensus algorithm called “Obelisk” that replaces both Proof of Work (“PoW”) and Proof of Stake (“PoS”).

The aim of the developers of Skycoin was to correct the major security flaws and “centralizing tendencies” associated with blockchain networks in which consensus is based on PoW or PoS algorithms and coin creation is linked to a mining process. Skycoin is therefore trying to create a cryptocurrency that better fulfills Satoshi’s original vision of a fully decentralized digital currency system.

In doing so, Skycoin technology creates a blockchain network with no mining requirement, fixed supplies of crypto-tokens, 10-second transaction times, and greater security. In a system in which the connection between coin creation and control over the network is severed, crypto-tokens lose their political function and begin to act more like a form of digital property in the straightforward sense.

Proof of Work and the Bitcoin system

It was a fundamental miscalculation in the early programming of Bitcoin that the mining process would produce an economic incentive structure that would promote decentralization. In fact, the link between consensus and hashing power incentivizes the purchase of ever increasing processing capacity to control the consensus network.

The Bitcoin network, for instance, is de facto controlled by three for-profit mining pools which have been able to concentrate a large part of the network’s hashing power on its servers. These pools have begun to act as a cartel, splitting hashing power among each other by agreement. The link between mining and control of the network was already identified by Satoshi as the main non-cryptographic threat to the stability of the network. It allows actors who accumulate sufficient processing power and achieve a majority hash rate to falsify or revert transactions on the network in a 51% attack. Some argue that this vulnerability has become less pressing in an environment where hash power is highly centralized with actors who have invested large sums in the Bitcoin network and depend for their survival on the high value of the coin. Yet the power to influence the network is still highly concentrated, defeating the purpose of a distributed ledger-based cryptocurrency.

The Bitcoin network’s PoW algorithm thus introduces security and monopoly problems by placing power over the network with the actor capable of mobilizing enough economic resources to control the mining process.

This also implies that the operation of the network is both economically and environmentally inefficient. The continuous input of processing power required by the mining process uses up large amounts of electricity, incurring monthly costs in the tens of millions. These costs can only be offset with an exponentially growing influx of new capital along with new users. Only a very small number of well-established coins, like Bitcoin and Ethereum, will be able to attract enough users to achieve such a continual flow. In the case of most other PoW/PoS-based coins, the cost of PoW/PoS mining is paid for in a lower market valuation as money is bled out of a coin by mining costs until the coin is abandoned.

Quote:Right now the Bitcoin economy consists of new users putting their money in and then the money being thrown in a pit and burned in a sacrifice ritual to the mining electricity costs. If the average user had to pay the miners’ electricity cost directly as transaction fees, instead of it being robbed from them through inflation by the creation of new coins, then each Bitcoin transaction would cost more than $50. It would be more expensive than an international bank transfer.

The centralizing tendency of Proof of Stake

Although Proof of Stake algorithms tackle the security issue of 51% attacks, they are arguably even more vulnerable to centralization than PoW networks. In PoS, the size of network participants’ holdings of the cryptocurrency in the network determines their authority and voting power to implement technical changes in the network. Participants are able to mine an equivalent portion of their stake regardless of processing power.

This principle significantly increases the economic barriers to launching a 51% attack because the financial cost of acquiring the majority of tokens on the network in the open market is very likely to exceed the potential gain. If an attacker ends up as the majority stakeholder in the network, he will suffer most from the impact of the attack on the stability of the network or the external value of the cryptocurrency.

Yet, although raising the barriers to human-led attacks on the network, PoS creates a centralizing impulse which is as strong as, if not stronger than, in the case of PoW. As Joseph Young summarizes in his comparison of the two systems at [color=#0072ff]coinfox.info, “A system where the major stakeholder enjoys extensive control and authority over both technical and economic aspects of the network creates a major monopoly problem.” While in PoW voting on the implementation of technical changes to the network “is divided among miners, developers and other crucial members of the community,” in a PoS system “major stakeholders have a technical ability to make any changes they like without considering the will of the community, businesses, miners and developers. This centralisation of voting power and, essentially, control of the network defeats the purpose of a distributed ledger-based cryptocurrency since it contradicts its entire principle of distributing all elements within the network to avoid the presence of a central authority.”

Obelisk: Skycoin’s distributed consensus algorithm

To tackle this centralization problem, Skycoin moves beyond PoW/PoS. It uses a distributed consensus algorithm, called Obelisk, which distributes influence over the network according to a “web of trust”. In essence, every node has a list of other nodes that it subscribes to, and the density of a node’s network of subscribers determines its influence on the network. Each node is assigned a personal blockchain which acts as a “public broadcasting channel” on which all of a node’s actions are visible and publicly recorded. As all consensus decisions and communication occur through the personal blockchains of each node, the community can very easily audit nodes for cheating or collusion. How decisions on the network are made and which nodes influence those decisions is completely transparent.

The public record left by each node’s personal blockchain allows the network to react to defections by severing connections with less trustworthy or malicious nodes, contracting the network to a smaller and denser core of trusted nodes. Hence, in principle, if the community does not trust the nodes representing them or feels that power within the network is too concentrated (or not concentrated enough) the community is able to collectively shift the balance of power in the network by collectively changing their trust relationships in the network. The accountability of nodes to the community and 3rd party audits as well as the transparency of consensus strengthens collective decision-making and thus introduces a highly democratic and decentralizing element to the network.

This system provides for a digital currency system with significantly reduced transaction times, no mining requirement, and greater security.

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  SKYcoin AMA Transcript
Posted by: ranev - 12-04-2017, 12:17 PM - Forum: Skycoin Project - Replies (2)

https://www.reddit.com/r/ArkEcosystem/co...h_skycoin/

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  Skywire Miner
Posted by: skyguy - 12-04-2017, 05:56 AM - Forum: Skywire - Replies (5)

The Skywire “miner” is meticulously designed and configured to provide a backbone for the new internet. Its custom-built hardware exceeds technical specifications to deliver maximum power and performance. Skywire functions as a “miner” for Skycoins. It acts as a specialized VPN, using the following hardware configuration:

  • 8 CPU boards
  • 2 GB of RAM per board
  • 4 CPU cores per board
  • 64 GB of storage per board
  • 64-bit Linux (Alpine Linux)
  • Gigabit ethernet, 8+1 port switch
Each board features an ARM processor, 2 GB of RAM, and anywhere from 32 to 256 GB flash storage. The hardware is segmented in such a way that even if one service is compromised, the other services on the same machine can’t be. An OpenWRT router with strict packet forwarding rules and access control increases security. The setup can be further customized to consist of 4, 8, 16, or 32 boards.


[Image: 2zj4CUV.jpg]

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  #Genesis
Posted by: ranev - 12-04-2017, 03:21 AM - Forum: Skycoin Project - Replies (1)

Thanks for setting this up @skyguy!  
This be the start of a decentralised internet future in SA

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