{"id":170,"date":"2017-04-10T22:30:52","date_gmt":"2017-04-11T03:30:52","guid":{"rendered":"http:\/\/npsa.parentreprise.com\/?p=170"},"modified":"2017-08-04T07:30:51","modified_gmt":"2017-08-04T12:30:51","slug":"2017-04-blockchains","status":"publish","type":"post","link":"https:\/\/kwnpsa.ca\/index.php\/2017\/04\/10\/2017-04-blockchains\/","title":{"rendered":"2017-04: Blockchains"},"content":{"rendered":"<p><strong>Location:<\/strong> <a title=\"\" href=\"https:\/\/maps.google.com\/maps?f=q&amp;hl=en&amp;q=151+Charles+Street+West%2C+Kitchener%2C+ON%2C+ca\" target=\"_blank\">Communitech Jelly Bean Room 1st Floor<\/a>, 151 Charles Street West, Kitchener, ON<span class=\"event-map-link\"> (<\/span><em>Look for the building with the Communitech, Google, and Desire To Learn logos, enter at the glass doors.)<\/em><br \/>\n<strong>Date:<\/strong> April 10<sup>th<\/sup>, 2017<br \/>\n<strong>Time:<\/strong> 7:00 PM<\/p>\n<p>What&#8217;s a blockchain? Is this all about math? How do I make Bitcoin payments? How can I receive Bitcoin donations on my Website? Are there other blockchain currencies? What services exist for blockchain currency exchange? Is blockchain technology good for more than just Bitcoin? What blockchain tools exist for Non-Profit organizations?<\/p>\n<p>Marc and Bob ask the questions, and we&#8217;ll have a guest (or several) to provide the answers!<\/p>\n<p>See you at the meeting!<br \/>\n&#8211;Marc and Bob<\/p>\n<p><strong class=\"selflink\">Meeting Notes for Blockchains (2017-04-10)<\/strong><\/p>\n<ul>\n<li>Today we&#8217;re joined by guest <strong>Kris Stinson<\/strong> (<a class=\"external text\" href=\"https:\/\/twitter.com\/stinsonkris\" rel=\"nofollow\">@StinsonKris<\/a> on Twitter)<\/li>\n<li>Lots of media attention, &#8220;blockchain this, blockchain that&#8221;, they&#8217;re trying to sell you a database\n<ul>\n<li>Microsoft, IBM, governments (even Canada: Cancoin)<\/li>\n<\/ul>\n<\/li>\n<li>Banks are threatened, unregulated currency (scary!)<\/li>\n<li>Japan has approved Bitcoin as a currency (legal tender)<\/li>\n<li>Legal (tax) ramifications: Capital Gains.<\/li>\n<\/ul>\n<h4><strong><span id=\"Video\" class=\"mw-headline\">Video<\/span><\/strong><\/h4>\n<ul>\n<li>We watch a video with Andreas Antonopolis: Foremost educator on Bitcoin\n<ul>\n<li><a class=\"external text\" href=\"https:\/\/www.youtube.com\/watch?v=i9nUMvpT2rM\" rel=\"nofollow\">Blockchain for Beginners &#8211; YouTube<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4><strong><span id=\"Types_of_blockchain_currency\" class=\"mw-headline\">Types of Blockchain Currency<\/span><\/strong><\/h4>\n<ul>\n<li><a class=\"external text\" href=\"https:\/\/coinmarketcap.com\/\" rel=\"nofollow\">CryptoCurrency Market Capitalizations<\/a><\/li>\n<li><a class=\"external text\" href=\"https:\/\/augur.net\/\" rel=\"nofollow\">Augur<\/a> &#8211; a &#8220;betting&#8221; site; deals with contracts<\/li>\n<li>Based on <a class=\"external text\" href=\"https:\/\/www.ethereum.org\/\" rel=\"nofollow\">Ethereum<\/a><\/li>\n<li>DAO &#8211; Decentralized Autonomous Organization\n<ul>\n<li>eg. Ethereum<\/li>\n<li>A decision by this DAO split Ethereum into Ethereum and <a class=\"external text\" href=\"https:\/\/ethereumclassic.github.io\/\" rel=\"nofollow\">Ethereum Classic<\/a><\/li>\n<li>Now there are miners working on both branches of the blockchain<\/li>\n<li>&#8220;The mining network&#8221; determines whether a fork of the blockchain can happen<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4><strong><span id=\"How_does_the_blockchain_determine_.22truth.22.3F\" class=\"mw-headline\">How does the blockchain determine &#8220;truth&#8221;?<\/span><\/strong><\/h4>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>The longest chain wins<\/li>\n<\/ul>\n<\/li>\n<li>&#8220;Rolling back the chain&#8221;\n<ul>\n<li>database<\/li>\n<li>miners<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4><strong><span id=\"Quantum_computers.3F\" class=\"mw-headline\">Quantum computers?<\/span><\/strong><\/h4>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Will change the game!<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>Winkelvoss brothers\n<ul>\n<li>Own over 50% of bitcoin?<\/li>\n<li>This is a problem, they can determine the validity of transactions<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4><strong><span id=\"Wallets\" class=\"mw-headline\">Wallets<\/span><\/strong><\/h4>\n<ul>\n<li>Wallets are Public\/Private Key encryption containers<\/li>\n<\/ul>\n<ul>\n<li>How to get a <b>Bitcoin Donation<\/b> buttton on our Non-Profit Organization website?\n<ul>\n<li>Just need to publish your wallet&#8217;s Public Key, no &#8220;button&#8221; required<\/li>\n<li>But <a class=\"external text\" href=\"https:\/\/info.shapeshift.io\/tools\/shifty-button\" rel=\"nofollow\">Shifty Button | ShapeShift | The fastest way to swap cryptocurrencies. No account required<\/a>\n<ul>\n<li>This will generate a button for multiple currencies;<\/li>\n<li>Just copy &#8216;n&#8217; paste your public wallet address<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4><strong><span id=\"Other_blockchain_technologies\" class=\"mw-headline\">Other blockchain technologies<\/span><\/strong><\/h4>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Don&#8217;t trust <i>The Cloud<\/i>?<\/li>\n<li>Authentication<\/li>\n<li>Filesystems<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>90 minutes was far too short to cover all aspects of Blockchain Technology; we&#8217;ll invite Kris Stinson back someday.<\/p>\n<p><strong>Video Recording of this Meetup (by Gheorghe Curelet-Balan):<\/strong> https:\/\/youtu.be\/6cz-vqDxfyc<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Location: Communitech Jelly Bean Room 1st Floor, 151 Charles Street West, Kitchener, ON (Look for the building with the Communitech, Google, and Desire To Learn logos, enter at the glass doors.) Date: April 10th, 2017 Time: 7:00 PM What&#8217;s a &hellip; <a href=\"https:\/\/kwnpsa.ca\/index.php\/2017\/04\/10\/2017-04-blockchains\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37,14],"tags":[],"class_list":["post-170","post","type-post","status-publish","format-standard","hentry","category-blockchains","category-pastmeetings"],"_links":{"self":[{"href":"https:\/\/kwnpsa.ca\/index.php\/wp-json\/wp\/v2\/posts\/170","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kwnpsa.ca\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kwnpsa.ca\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kwnpsa.ca\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kwnpsa.ca\/index.php\/wp-json\/wp\/v2\/comments?post=170"}],"version-history":[{"count":8,"href":"https:\/\/kwnpsa.ca\/index.php\/wp-json\/wp\/v2\/posts\/170\/revisions"}],"predecessor-version":[{"id":232,"href":"https:\/\/kwnpsa.ca\/index.php\/wp-json\/wp\/v2\/posts\/170\/revisions\/232"}],"wp:attachment":[{"href":"https:\/\/kwnpsa.ca\/index.php\/wp-json\/wp\/v2\/media?parent=170"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kwnpsa.ca\/index.php\/wp-json\/wp\/v2\/categories?post=170"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kwnpsa.ca\/index.php\/wp-json\/wp\/v2\/tags?post=170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}