{"id":18596,"date":"2016-12-26T11:25:57","date_gmt":"2016-12-26T19:25:57","guid":{"rendered":"https:\/\/www.altoros.com\/blog\/?p=18596"},"modified":"2017-12-11T16:02:14","modified_gmt":"2017-12-11T13:02:14","slug":"when-is-a-private-blockchain-a-good-idea-and-when-is-it-not","status":"publish","type":"post","link":"https:\/\/www.altoros.com\/blog\/when-is-a-private-blockchain-a-good-idea-and-when-is-it-not\/","title":{"rendered":"When Is a Private Blockchain a Good Idea, and When Is It Not?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.altoros.com\/blog\/when-is-a-private-blockchain-a-good-idea-and-when-is-it-not\/#Private_and_public_blockchains\" >Private and public blockchains<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.altoros.com\/blog\/when-is-a-private-blockchain-a-good-idea-and-when-is-it-not\/#You_might_not_need_blockchain\" >You might not need blockchain<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.altoros.com\/blog\/when-is-a-private-blockchain-a-good-idea-and-when-is-it-not\/#Sometimes_you_do_really_need_blockchain\" >Sometimes you do really need blockchain<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.altoros.com\/blog\/when-is-a-private-blockchain-a-good-idea-and-when-is-it-not\/#Some_predictions_for_2017\" >Some predictions for 2017<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.altoros.com\/blog\/when-is-a-private-blockchain-a-good-idea-and-when-is-it-not\/#Private_environments_a_matter_of_trust\" >Private environments: a matter of trust<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.altoros.com\/blog\/when-is-a-private-blockchain-a-good-idea-and-when-is-it-not\/#A_status_quo_vs_a_breakthrough\" >A status quo vs. a breakthrough<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.altoros.com\/blog\/when-is-a-private-blockchain-a-good-idea-and-when-is-it-not\/#Want_details_Watch_the_video\" >Want details? Watch the video!<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.altoros.com\/blog\/when-is-a-private-blockchain-a-good-idea-and-when-is-it-not\/#Related_reading\" >Related reading<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.altoros.com\/blog\/when-is-a-private-blockchain-a-good-idea-and-when-is-it-not\/#About_the_panelists\" >About the panelists<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Private_and_public_blockchains\"><\/span>Private and public blockchains<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Private blockchains stand in <a href=\"https:\/\/blog.ethereum.org\/2015\/08\/07\/on-public-and-private-blockchains\/\" target=\"_blank\">sharp contrast<\/a> to the permissionless (anonymous), public ledgers found with Bitcoin, Ethereum, and other cryptocurrency projects. This is the type of blockchain addressed by the Hyperledger Project, which was kickstarted by IBM in December 2015. Back then, IBM open-sourced its <a href=\"https:\/\/www.altoros.com\/blog\/technical-introduction-to-hyperledger-fabric\/\" target=\"_blank\">Open Blockchain<\/a> work into a community effort managed by the Linux Foundation.<\/p>\n<p>According to <a href=\"https:\/\/www.fujitsu.com\/us\/about\/\" target=\"_blank\">Hart Montgomery<\/a> of Fujitsu Labs, \u201cpermissioned blockchains are great when you have some level of trust.\u201d (Hart Montgomery is also a member of Hyperledger&#8217;s Technical Steering Committee.)<\/p>\n<p><a href=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/12\/Hyperledger-Blockchain-NYC-Hart-Montgomery-Fredrik-Voss-Makoto-Takemiya-Fahad-Chowdhury-2.jpeg\"><img decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/12\/Hyperledger-Blockchain-NYC-Hart-Montgomery-Fredrik-Voss-Makoto-Takemiya-Fahad-Chowdhury-2.jpeg\" alt=\"Hyperledger Blockchain NYC Hart Montgomery Fredrik Voss Makoto Takemiya Fahad Chowdhury 2\" width=\"640\"  class=\"aligncenter size-full wp-image-18620\" \/><\/a><\/p>\n<p>When is blockchain a good idea, and when is it not? This question focused a recent panel discussion at a <a href=\"https:\/\/www.meetup.com\/Hyperledger-NYC\/events\/229796753\/\" target=\"_blank\">Hyperledger meetup<\/a> in New York. Together with Hart Montgomery, the panel joined:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.linkedin.com\/in\/fredrik-voss-54bb1b6\" target=\"_blank\">Fredrik Voss,<\/a> VP of Blockchain Innovation at Nasdaq<\/li>\n<li><a href=\"https:\/\/github.com\/takemiyamakoto\" target=\"_blank\">Makoto Takemiya<\/a>, co-creator of the Hyperledger Project&#8217;s <a href=\"https:\/\/www.altoros.com\/blog\/the-iroha-project-to-bring-mobility-to-blockchain-with-simple-apis\/\" target=\"_blank\">Ihora incubation<\/a> and co-founder of Tokyo-based blockchain developer Soramitsu<\/li>\n<li><a href=\"https:\/\/www.linkedin.com\/in\/fahad-chowdhury-2019a04\" target=\"_blank\">Fahad Chowdhury<\/a>, AVP of Strategy and Operations for Deutsche Bank<\/p>\n<\/li>\n<\/ul>\n<p>The panel was moderated by <a href=\"https:\/\/github.com\/olegabu\" target=\"_blank\">Oleg Abdrashitov<\/a>, Head of Blockchain Practice for Altoros.<\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"You_might_not_need_blockchain\"><\/span>You might not need blockchain<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Hart elaborated on his observation, asking \u201cdo you need a <strong>distributed<\/strong> database (in an application or process), where the parties don&#8217;t fully trust one another? If not, then maybe a more traditional database is fine for you.\u201d Hart said he often finds himself in discussions about replacing existing databases. \u201cWhy do you need a blockchain to replace an internal database? Do you not trust people who have access to it? Why would you need this extra <a href=\"https:\/\/www.altoros.com\/blog\/how-hyperledger-fabric-delivers-security-to-enterprise-blockchain\/\" target=\"_blank\">cryptographic power<\/a>?\u201d<\/p>\n<blockquote><p><em>&#8220;If you don&#8217;t have varied trust requirements, there&#8217;s no need to use blockchain.&#8221;<br \/>\n\u2014Hart Montgomery, Fujitsu<\/em><\/p><\/blockquote>\n<p>Fredrik concurred, noting that \u201cif you don&#8217;t have a need for a <strong>peer-to-peer<\/strong>, non-trusting relationship, and if you don&#8217;t need to <strong>keep track of an asset<\/strong> in a peer-to-peer environment, then it&#8217;s a little questionable about what blockchain would bring to you.\u201d<\/p>\n<p><a href=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/12\/Hyperledger-Blockchain-NYC-Hart-Montgomery-Fredrik-Voss-Makoto-Takemiya-Fahad-Chowdhury-3.jpg\"><img decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/12\/Hyperledger-Blockchain-NYC-Hart-Montgomery-Fredrik-Voss-Makoto-Takemiya-Fahad-Chowdhury-3.jpg\" alt=\"Hyperledger Blockchain NYC Hart Montgomery Fredrik Voss Makoto Takemiya Fahad Chowdhury 3\" width=\"640\" class=\"aligncenter size-full wp-image-18628\" \/><\/a><\/p>\n<p>Oleg noted that he often needs to reject ideas from proposed customers for private blockchain, because they don&#8217;t have the need for it.<\/p>\n<blockquote><p><em>\u201cIt doesn&#8217;t make sense to build an in-house blockchain where everyone is trusted.\u201d<br \/>\n\u2014Oleg Abdrashitovy, Altoros<\/em><\/p><\/blockquote>\n<p><strong>Performance<\/strong> is another issue. As Hart noted, \u201cit&#8217;s an issue with extremely high transaction throughput along with really high privacy and confidentiality requirements.\u201d<\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Sometimes_you_do_really_need_blockchain\"><\/span>Sometimes you do really need blockchain<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Fredrik also clarified when blockchain solutions should be considered. \u201cThere are <em>three core areas<\/em>,\u201d he said:<\/p>\n<ul>\n<li>\u201c<strong>Post-trade<\/strong>, where we have the same back end as we had 40 years ago;<\/li>\n<li>in <strong>regulatory reporting<\/strong>, which will also (in the long run) help society understand risks;<\/li>\n<li> and the enhancement of the relationship between <strong>an issuer<\/strong> of an asset <strong>and investors<\/strong>.\u201d<\/li>\n<\/ul>\n<p>The third point is demonstrated by Bitcoin in recent years, he noted. It could be applied in private blockchains, but things as seemingly simple as \u201cStarbucks (quickly) issuing a coupon to all of its investors, something that is impossible to do today.\u201d<\/p>\n<p><a href=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/12\/Hyperledger-Blockchain-NYC-Hart-Montgomery-Fredrik-Voss-Makoto-Takemiya-Fahad-Chowdhury.jpeg\"><img decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/12\/Hyperledger-Blockchain-NYC-Hart-Montgomery-Fredrik-Voss-Makoto-Takemiya-Fahad-Chowdhury.jpeg\" alt=\"Hyperledger Blockchain NYC Hart Montgomery Fredrik Voss Makoto Takemiya Fahad Chowdhury\" width=\"640\" class=\"aligncenter size-full wp-image-18619\" \/><\/a><\/p>\n<p>Makoto added that many organizations have a need to \u201ccheck that data has not been changed, especially in environments that are not completely under their control,\u201d alluding again to the partial trust environments that are common in business.<\/p>\n<p>That said, Makoto concluded, \u201cyou don&#8217;t always need full cryptographic verification. That might be an overkill.&#8221;<\/p>\n<blockquote><p><em>&#8220;There are actually very few serious applications that really need the power that blockchain provides.\u201d \u2014Makoto Takemiya, Soramitsu<\/em><\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Some_predictions_for_2017\"><\/span>Some predictions for 2017<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>So, what does all this bode for 2017? All the panelists agreed to some degree that it&#8217;s time to stop \u201cplaying around\u201d (in Makoto&#8217;s phrase) and focus on <strong>real projects<\/strong>.<\/p>\n<p>Fahad said \u201cwe might see some (real) commercial products out there.\u201d Yet, he cautioned about abandoning the current trend of creating proofs-of-concept (PoCs) and pilot projects.<\/p>\n<blockquote><p><em>\u201cIf you don&#8217;t continue to explore, how do you get involved (with blockchain) more deeply?\u201d<br \/>\n\u2014Fahad Chowdhury, Deutsche Bank<\/em><\/p><\/blockquote>\n<p><a href=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/12\/Hyperledger-Blockchain-NYC-Hart-Montgomery-Fredrik-Voss-Makoto-Takemiya-Fahad-Chowdhury-4.jpg\"><img decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/12\/Hyperledger-Blockchain-NYC-Hart-Montgomery-Fredrik-Voss-Makoto-Takemiya-Fahad-Chowdhury-4.jpg\" alt=\"Hyperledger Blockchain NYC Hart Montgomery Fredrik Voss Makoto Takemiya Fahad Chowdhury 4\" width=\"640\" class=\"aligncenter size-full wp-image-18633\" \/><\/a><\/p>\n<p>Hart said he expects to see more \u201cactually live production blockchain projects.\u201d He said he doesn&#8217;t think we&#8217;re in a time yet \u201cwhen large corporations will put their central corporate (processes and data) on the blockchain,\u201d but \u201cwe&#8217;re moving in that direction.\u201d<\/p>\n<p>Fredrik said he&#8217;s \u201cstarting to see the tail-end of (an era of) demos and PoCs. We&#8217;re going to start to see products with real assets and real customers. People will start to dig down and make real products. This is difficult work. You have to face consumers and clients, and agree on what the final product is going to look like. You also have to deal with laws and regulations (as well as) integrations and transitions into existing IT infrastructure.\u201d<\/p>\n<p>The key advice from this panel was \u201cdon&#8217;t use blockchain as a solution looking for a problem.\u201d It&#8217;s not meant to be a universal solvent for all ledger and database applications, and there are performance issues that may be insuperable when it comes to very high-performance requirements.<\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Private_environments_a_matter_of_trust\"><\/span>Private environments: a matter of trust<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The panelists all referred to environments that have some trust, i.e., are not completely anonymous and blind as in the consumer-driven, cryptocurrency environments.<\/p>\n<p>These environments would include groups of banks working together on several transaction types; they trust that their fellow members will settle the transactions legally and quickly, but they don&#8217;t want their \u201cco-opetitors\u201d doing any nosy statistical analysis of these transactions.<\/p>\n<p><a href=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/12\/Hyperledger-Blockchain-NYC-Hart-Montgomery-Fredrik-Voss-Makoto-Takemiya-Fahad-Chowdhury-v5.jpg\"><img decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/12\/Hyperledger-Blockchain-NYC-Hart-Montgomery-Fredrik-Voss-Makoto-Takemiya-Fahad-Chowdhury-v5.jpg\" alt=\"Hyperledger Blockchain NYC Hart Montgomery Fredrik Voss Makoto Takemiya Fahad Chowdhury v5\" width=\"640\" class=\"aligncenter size-full wp-image-18666\" \/><\/a><\/p>\n<p>In a consumer environment along the lines of eBay, the parties trust each other somewhat (especially if the services offers reviews of buyers and sellers), but want to keep all of their personal information private, and would favor an immutable record (which blockchain provides) to avoid and resolve disputes.<\/p>\n<p>Yet, I can see two possible problems with this consensus view:<\/p>\n<ol>\n<li style=\"margin-bottom: 10px;\">How trusted are fully trusted environments, anyway? \u201cInside jobs\u201d remain the core of most corporate crime, so does it make some sense for internal databases to be replaced by blockchain even when all employees are \u201ctrusted\u201d?<\/li>\n<li>What if the beneficial but onerous cryptographic demands inherent to blockchain eventually sink the ship altogether? What if banks, for example, find that they were in fact doing just fine with their seemingly inefficient third-party processes after all? What if blockchain&#8217;s turtle-like transaction finality is just something people can&#8217;t accept?<\/li>\n<\/ol>\n<p>Additionally, even though these panelists and numerous other presentations within the blockchain world this year all make a clear <a href=\"https:\/\/www.altoros.com\/blog\/hyperledger-ethereum-discussion-makes-p2p-b2b-distinction\/\">distinction<\/a> between the permissionless, public cryptocurrency blockchains and the permissioned, private variety, there is still a dark mystique surrounding the entire technology.<\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"A_status_quo_vs_a_breakthrough\"><\/span>A status quo vs. a breakthrough<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ironically, blockchain is intended to improve and ensure transparency for financial transactions of all types, yet the blockchain culture itself remains mysterious. The public blockchain, cryptocurrency movement is one that flouts the idea of control by organizations and governments, and can even be seen as anarchic. It abhors the status quo. The private blockchain movement, on the other hand, is the status quo, simply trying to make things less cumbersome and more reliable.<\/p>\n<p><a href=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/12\/Hyperledger-Blockchain-NYC-Hart-Montgomery-Fredrik-Voss-Makoto-Takemiya-Fahad-Chowdhury-6.jpg\"><img decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/12\/Hyperledger-Blockchain-NYC-Hart-Montgomery-Fredrik-Voss-Makoto-Takemiya-Fahad-Chowdhury-6.jpg\" alt=\"Hyperledger Blockchain NYC Hart Montgomery Fredrik Voss Makoto Takemiya Fahad Chowdhury 6\" width=\"640\" class=\"aligncenter size-full wp-image-18667\" \/><\/a><\/p>\n<p>Will the odd connotations of public blockchain poison the well for private blockchain&#8217;s eventual broad acceptance? Will the sluggish performance of all blockchains doom them to failure as corporate processes? Or is what I sense as some current skepticism merely a minor hurdle on the way to blockchain&#8217;s eventual breakthrough as a core technology in enterprise IT?<\/p>\n<p>Things in the technology business move so quickly that it seems we&#8217;ll see these questions answered definitely by the end of 2018, if not next year.<\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Want_details_Watch_the_video\"><\/span>Want details? Watch the video!<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table width=\"100%\">\n<tbody>\n<tr>\n<td class=\"video-details-td\">\n<div style=\"float: right; width: 45%; padding-left: 15px; font-size: 14px;\">\n<p><strong>Table of contents<\/strong><\/p>\n<ol>\n<li style=\"margin-bottom: 10px;\">When is blockchain an ideal solution to a use case? (<a href=\"#wistia_gxsuihhdth?time=210\">3&#8217;30&#8221;<\/a>)<\/li>\n<li style=\"margin-bottom: 10px;\">When is blockchain not an ideal solution to a use case? (<a href=\"#wistia_gxsuihhdth?time=520\">8&#8217;40&#8221;<\/a>)<\/li>\n<li style=\"margin-bottom: 10px;\">What are the focus points for the different blockchain developers? (<a href=\"#wistia_gxsuihhdth?time=960\">16&#8217;00&#8221;<\/a>)<\/li>\n<li style=\"margin-bottom: 10px;\">What are the expectations and predictions for blockchain in 2017? (<a href=\"#wistia_gxsuihhdth?time=1365\">22&#8217;45&#8221;<\/a>)<\/li>\n<li style=\"margin-bottom: 10px;\">Q&#038;A. Can blockchain be used in an app for trading? (<a href=\"#wistia_gxsuihhdth?time=1705\">28&#8217;25&#8221;<\/a>)<\/li>\n<li style=\"margin-bottom: 10px;\">Q&#038;A. Is there a place for blockchain in software development in general? (<a href=\"#wistia_gxsuihhdth?time=1945\">32&#8217;25&#8221;<\/a>)<\/li>\n<\/ol>\n<\/div>\n<p><script charset=\"ISO-8859-1\" src=\"\/\/fast.wistia.com\/assets\/external\/E-v1.js\" async><\/script><\/p>\n<div class=\"wistia_embed wistia_async_gxsuihhdth\" style=\"height:320px;width:440px\">&nbsp;<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Related_reading\"><\/span>Related reading<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><a href=\"https:\/\/www.altoros.com\/blog\/the-iroha-project-to-bring-mobility-to-blockchain-with-simple-apis\/\" target=\"_blank\">The Iroha Project to Bring Mobility to Blockchain with Simple APIs<\/a><\/li>\n<li><a href=\"https:\/\/www.altoros.com\/blog\/governance-is-a-critical-need-and-a-critical-weakness-of-blockchains\/\">Governance Is a Critical Need and a Critical Weakness of Blockchains<\/a><\/li>\n<li><a href=\"https:\/\/www.altoros.com\/blog\/fireside-chat-blockchain-security-scalability-and-energy-consumption\/\">Fireside Chat: Blockchain Security, Scalability, and Energy Consumption<\/a><\/li>\n<li><a href=\"https:\/\/www.altoros.com\/blog\/hyperledger-ethereum-discussion-makes-p2p-b2b-distinction\/\" target=\"_blank\">Hyperledger\/Ethereum Discussion Makes P2P\/B2B Distinction<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"About_the_panelists\"><\/span>About the panelists<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div>\n<div style=\"float: right;\"><a href=\"https:\/\/www.fujitsu.com\/us\/about\/\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/12\/Hart-Montgomery-Fujitsu-Labs-bio.png\" alt=\"Hart Montgomery, Fujitsu Labs bio\" width=\"150\" height=\"150\" class=\"aligncenter size-full wp-image-18623\" \/><\/a><\/div>\n<div style=\"width: 600px;\"><small><a href=\"https:\/\/www.fujitsu.com\/us\/about\/\">Hart Montgomery<\/a> received his BS from Princeton in 2008 and completed his PhD in computer science at Stanford in 2014, during which he was awarded a Stanford Graduate Fellowship. He joined Fujitsu Laboratories of America in 2015. His current research interests are spread throughout general cryptography, but are somewhat focused on Lattice-based cryptography, basic cryptographic primitives, and applications of cryptographic protocols to cryptocurrencies.<\/small><\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<div>\n<div style=\"float: right;\"><a href=\"https:\/\/www.linkedin.com\/in\/fredrik-voss-54bb1b6\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/12\/Fredrik-Voss-Nasdaq-bio.png\" alt=\"Fredrik Voss, Nasdaq bio\" width=\"150\" height=\"150\" class=\"aligncenter size-full wp-image-18624\" \/><\/a><\/div>\n<div style=\"width: 600px;\"><small><a href=\"https:\/\/www.linkedin.com\/in\/fredrik-voss-54bb1b6\">Fredrik Voss<\/a> is VP of Blockhain Strategy at Nasdaq. He manages the strategic dimension of Nasdaq&#8217;s blockchain innovation initiative. Fredrik is advising the C-suite on corporate objectives and strategies for Nasdaq&#8217;s activities in the blockchain space. He is responsible for implementation and communication of approved strategies. Previously, Fredrik worked as Director Market Development for IntercontinentalExchange and as Director for OMX.<\/small><\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<div>\n<div style=\"float: right;\"><a href=\"https:\/\/www.linkedin.com\/in\/fahad-chowdhury-2019a04\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/12\/Fahad-Chowdhury-Deutsche-Bank-bio.png\" alt=\"Fahad Chowdhury, Deutsche Bank bio\" width=\"150\" height=\"150\" class=\"aligncenter size-full wp-image-18625\" \/><\/a><\/div>\n<div style=\"width: 600px;\"><small><a href=\"https:\/\/www.linkedin.com\/in\/fahad-chowdhury-2019a04\">Fahad Chowdhury<\/a> is AVP of Strategy and Operations at Deutsche Bank. He received his BS from Sony Brook University in 2007 where he graduated as summa cum laude along with other honors and awards, such as the Golden Key International Honours Society. Fahad is knowledgeable in capital markets, business analysis, trading systems, and credit derivatives. Previously, he has worked for Wipro, Capco, DTCC, and Fischer Francis Trees &#038; Watts.<\/small><\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<div>\n<div style=\"float: right;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/12\/Oleg-Abdrashitov-altoros-bio.png\" alt=\"Oleg Abdrashitov, altoros bio\" width=\"150\" height=\"150\" class=\"aligncenter size-full wp-image-18635\" \/><\/div>\n<div style=\"width: 600px;\"><small><a href=\"https:\/\/github.com\/olegabu\" target=\"_blank\">Oleg Abdrashitov<\/a> heads the Blockchain Practice at Altoros and the Requirements Working Group at Hyperledger. Oleg&#8217;s career spans 19 years in software development for the financial services companies. He has built systems supporting high frequency trading, middle office and online exchanges. Oleg has worked at top investment banks, hedge funds and has founded startups and consultancies. He is currently engaged by clients in finance and insurance to train engineers and architect solutions on blockchain.<\/small><\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<div>\n<div style=\"float: right;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/12\/Makoto-Takemiya-soramitsu-bio.png\" alt=\"Makoto Takemiya, soramitsu bio\" width=\"150\" height=\"150\" class=\"aligncenter size-full wp-image-18478\" \/><\/div>\n<div style=\"width: 600px;\"><small><a href=\"https:\/\/twitter.com\/M4K070\" target=\"_blank\">Makoto Takemiya<\/a> is a co-founder of Soramitsu, a Japanese fintech startup and developer of Iroha, a Hyperledger subproject. Makoto is currently a PhD student of applied computer science at the University of Tokyo. You can check out <a href=\"https:\/\/github.com\/takemiyamakoto\" target=\"_blank\">Makoto&#8217;s GitHub profile<\/a>.<\/small><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Private and public blockchains<\/p>\n<p>Private blockchains stand in sharp contrast to the permissionless (anonymous), public ledgers found with Bitcoin, Ethereum, and other cryptocurrency projects. This is the type of blockchain addressed by the Hyperledger Project, which was kickstarted by IBM in December 2015. Back then, IBM open-sourced its Open Blockchain work [&#8230;]<\/p>\n","protected":false},"author":9,"featured_media":18668,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[7],"tags":[672,753],"class_list":["post-18596","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-and-opinion","tag-blockchain","tag-hyperledger"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>When Is a Private Blockchain a Good Idea, and When Is It Not? | Altoros<\/title>\n<meta name=\"description\" content=\"Exploring the questions, a recent blockchain panel also contemplated what the technology has in store for 2017.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.altoros.com\/blog\/when-is-a-private-blockchain-a-good-idea-and-when-is-it-not\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"When Is a Private Blockchain a Good Idea, and When Is It Not? | Altoros\" \/>\n<meta property=\"og:description\" content=\"Private and public blockchains Private blockchains stand in sharp contrast to the permissionless (anonymous), public ledgers found with Bitcoin, Ethereum, and other cryptocurrency projects. 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