{"id":13583,"date":"2016-04-22T10:36:42","date_gmt":"2016-04-22T07:36:42","guid":{"rendered":"http:\/\/www.altoros.com\/blog\/?p=13583"},"modified":"2019-09-19T20:29:02","modified_gmt":"2019-09-19T17:29:02","slug":"digital-asset-contributes-an-enterprise-blockchain-server-to-hyperledger","status":"publish","type":"post","link":"https:\/\/www.altoros.com\/blog\/digital-asset-contributes-an-enterprise-blockchain-server-to-hyperledger\/","title":{"rendered":"Digital Asset Contributes an Enterprise Blockchain Server to Hyperledger"},"content":{"rendered":"<p>\u201cThe system of ledgers is nothing new,\u201d so says <a href=\"https:\/\/www.linkedin.com\/in\/tamasblummer\" target=\"_blank\" rel=\"noopener noreferrer\">Tam\u00e1s Blummer<\/a>, Chief Ledger Architect at Digital Asset Holdings (DAH). During the presentation at a recent <a href=\"https:\/\/www.meetup.com\/Hyperledger-NYC\/events\/229728822\/\" target=\"_blank\" rel=\"noopener noreferrer\">Hyperledger meetup<\/a> in NYC, Tam\u00e1s talked about his perspective on Hyperledger and provided an overview of Digital Asset\u2019s contribution to the project.<\/p>\n<p>The <a href=\"https:\/\/www.hyperledger.org\/\" target=\"_blank\" rel=\"noopener noreferrer\">Hyperledger Project<\/a> (HLP) is Linux Foundation&#8217;s collaborative project that aims to develop an open distributed ledger platform. (You can learn about how Hyperledger\u2019s Technical Steering Committee works from our recap of the <a href=\"https:\/\/www.altoros.com\/blog\/hyperledger-technical-f2f-meeting-draws-crowd-gets-some-work-done\/\" >face-to-face HLP meeting<\/a>.)<\/p>\n<p>&nbsp;<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_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\/digital-asset-contributes-an-enterprise-blockchain-server-to-hyperledger\/#What_needs_to_be_automated\" >What needs to be automated?<\/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\/digital-asset-contributes-an-enterprise-blockchain-server-to-hyperledger\/#Simple_over_complex\" >Simple over complex<\/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\/digital-asset-contributes-an-enterprise-blockchain-server-to-hyperledger\/#Simple_but_smart\" >Simple but smart<\/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\/digital-asset-contributes-an-enterprise-blockchain-server-to-hyperledger\/#Digital_Assets_contribution_to_the_HLP\" >Digital Asset\u2019s contribution to the HLP<\/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\/digital-asset-contributes-an-enterprise-blockchain-server-to-hyperledger\/#Hyperledger_resources\" >Hyperledger resources<\/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\/digital-asset-contributes-an-enterprise-blockchain-server-to-hyperledger\/#Want_more_details_Watch_the_full_video\" >Want more details? Watch the full video!<\/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\/digital-asset-contributes-an-enterprise-blockchain-server-to-hyperledger\/#About_the_speaker\" >About the speaker<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"What_needs_to_be_automated\"><\/span>What needs to be automated?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div id=\"attachment_13587\" style=\"width: 330px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/04\/Tam\u00e1s-Blummer-Chief-Ledger-Architect-Digital-Asset-Holdings.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-13587\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/04\/Tam\u00e1s-Blummer-Chief-Ledger-Architect-Digital-Asset-Holdings.jpg\" alt=\"Tam\u00e1s Blummer, Chief Ledger Architect, Digital Asset Holdings\" width=\"320\" height=\"320\" class=\"size-full wp-image-13587\" \/><\/a><p id=\"caption-attachment-13587\" class=\"wp-caption-text\"><\/p>\n<p style=\"font-size: 14px;\">Tam\u00e1s Blummer, Chief Ledger Architect, Digital Asset Holdings<\/p><\/p><\/div>\n<p>According to Tam\u00e1s, financial institutions have been using ledgers for quite some time and would most often be copied and reconciled through manual processes. These same processes are what keeps the financial system stable.<\/p>\n<p>Tam\u00e1s points out that the purpose of the HLP is to modernize and digitize the entire ledger system while also adding new technology to match evolving requirements.<\/p>\n<p>The question implied by Tam\u00e1s was, \u201cWhat needs to be automated in a contract?\u201d<\/p>\n<p>Here, it\u2019s implied that a contract is any business interaction within the ledger. He goes on to discuss a few key points in this area:<\/p>\n<ul>\n<li>\n<p><strong>Formalization.<\/strong> A problem now is finding \u201cdefinitions for business interactions even more precise than they are captured by contracts in the regular language.\u201d There is a need to come up with a standard format for recording business interactions.<\/p>\n<\/li>\n<li>\n<p><strong>Extent.<\/strong> How much of the contract should be automated?<\/p>\n<\/li>\n<ul>\n<li>\n<p><strong>Simple.<\/strong> Stick to trivial mapping like that of ownership data.<\/p>\n<\/li>\n<li>\n<p><strong>Complex.<\/strong> We can have smart contracts where, \u201cwe are able to deploy entire workflows to the ledger and the ledger executes those workflows.\u201d<\/p>\n<\/li>\n<li>\n<p><strong>In-between.<\/strong> The system doesn\u2019t have to be \u201ceither\/or.\u201d You can express trivial properties in the ledger with \u201csimple tool constructs\u201d and on the extreme, you can deploy \u201cturing complete languages in the blockchain.\u201d<\/p>\n<\/li>\n<\/ul>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Simple_over_complex\"><\/span>Simple over complex<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>When it comes to the extent of automation, \u201cDigital Assets is leaning more towards the first solution and for very practical reasons.\u201d Being limited to simple automation allows the ledger to highlight some very important traits which include:<\/p>\n<ul>\n<li>\n<p><strong>Auditability.<\/strong> Sticking to simple automation means you can audit the entire ledger just by reviewing the content of the transactions. \u201cAuditability is one of the reasons why financial services are interested in the blockchain in the first place.\u201d<\/p>\n<\/li>\n<li>\n<p><strong>Scalability.<\/strong> Implementing <a href=\"https:\/\/bitcoin.org\/en\/glossary\/unspent-transaction-output\" target=\"_blank\" rel=\"noopener noreferrer\">UTXO<\/a> in Bitcoin where you have a reference to the previous token means you can garbage collect transactions that you no longer need. This allows for simple optimizations in scalability.<\/p>\n<\/li>\n<li>\n<p><strong>Accessibility.<\/strong> If the ledger is simple, it will be easier to deploy contributions from other groups in the HLP such as Blockstream who specialize in encryption.<\/p>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Simple_but_smart\"><\/span>Simple but smart<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>There\u2019s a case to be made that simple contracts can also be smart contracts.<\/p>\n<blockquote><p><em> \u201cIt doesn\u2019t mean that we don\u2019t need or we don\u2019t use smart contracts. It just means we are restricting ourselves at this very moment to very trivial things.&#8221;<br \/>\n\u2014Tam\u00e1s Blummer, Chief Ledger Architect, Digital Asset Holdings<\/em><\/p><\/blockquote>\n<p>\u201cIf you think about a multi-signature\u2014a signature with multiple parties\u2014that\u2019s actually already a smart contract because it sets a Boolean condition that checks the signatures,\u201d says Tam\u00e1s \u201cExecuting those checks and putting them into a Boolean construct is a smart contract just trivial.\u201d<\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Digital_Assets_contribution_to_the_HLP\"><\/span>Digital Asset\u2019s contribution to the HLP<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Currently designated as the <a href=\"https:\/\/github.com\/DigitalAssetCom\/hlp-candidate\" target=\"_blank\" rel=\"noopener noreferrer\">\u201cHLP-Candidate\u201d<\/a> by DAH, this contribution in intended to meet enterprise architecture requirements as seen by individuals who have decades of experience in the financial institution.<\/p>\n<p>\u201cDigital Asset\u2019s contribution is a highly configurable enterprise blockchain implementation that has Bitcoin compatibility and much more. It\u2019s configurable to use different mining algorithms,\u201d explains Tam\u00e1s as he reveals DAH\u2019s contribution to the Hyperledger project. \u201cThe implementation is nearly entirely in Java. 40\u201350 thousand lines of code in Java and in Scala.\u201d<\/p>\n<p>Some of the current key features include:<\/p>\n<ul>\n<li>\n<p>The HLP-Candidate derives its transaction process from Bitcoin\u2019s UTXO and has it improved with features and requirements needed in financial services.<\/p>\n<\/li>\n<li>\n<p>The HLP-Candidate is designed to be the lowest level communication and consensus layer and it features an append-only log of financial transactions which can then be replicated by multiple organizations.<\/p>\n<\/li>\n<li>\n<p>The HLP-Candidate has a modular architecture and configurable network architecture. The network is configurable to allow for distinct interoperable consensus groups to have their own functional and nonfunctional requirements.<\/p>\n<\/li>\n<\/ul>\n<p>Tam\u00e1s goes into more detail explaining the inner workings their HLP-Candidate. \u201cWe took the <a href=\"https:\/\/www.altoros.com\/blog\/technical-introduction-to-hyperledger-fabric\/\" >OBC framework<\/a> that comes with a consensus protocol and storage for the blockchain and the broad state which is a side effect of the transaction. We put in a chain code that is nothing [more] than a wrapper around a modified modules from Blockstream with added features. On top of this stack, we added the API that Digital Asset\u2019s uses to create its higher level stacks.\u201d<\/p>\n<p><center><a href=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/04\/Digital-Asset-Holdings-Hyperledger-Candidate-overview.png\" rel=\"attachment wp-att-13594\"><img decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/04\/Digital-Asset-Holdings-Hyperledger-Candidate-overview.png\" alt=\"Digital-Asset-Holdings-Hyperledger-Candidate-Overview\" width=\"640\" class=\"aligncenter size-full wp-image-13594\" \/><\/a><\/center><\/p>\n<p>He follows up with a summary of DAH\u2019s API, stating, \u201cThis API, if you think in \u2018crypto-forensic\u2019 terms, is implementing a very sophisticated wallet but not a single wallet. It gives you a very rich set of functions to do all kinds of wallets. It supports the creation of native assets.\u201d<\/p>\n<p>With the API explained, Tam\u00e1s circles back to finish the overview. \u201cWe added this API on top of OBC blockchain and connect it such that we can push in transactions into OBC so you don\u2019t need to use the RPC interface of OBC. You have a very nice Java interface that allows you to integrate with other applications and we extend the OBC so that it is able to pump out events and we suppress these events so you can use this to build a data warehousing application, you could build a cache, and a running index of OBC content.\u201d<\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hyperledger_resources\"><\/span>Hyperledger resources<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Details of the Hyperledger Project can be found on <a href=\"https:\/\/www.hyperledger.org\/\" target=\"_blank\" rel=\"noopener noreferrer\">the official website<\/a>. There are also a <a href=\"https:\/\/github.com\/hyperledger\" target=\"_blank\" rel=\"noopener noreferrer\">GitHub repo<\/a>, <a href=\"https:\/\/github.com\/hyperledger\/hyperledger\" target=\"_blank\" rel=\"noopener noreferrer\">Wiki<\/a>, and <a href=\"https:\/\/hyperledgerproject.slack.com\/messages\/general\/\" target=\"_blank\" rel=\"noopener noreferrer\">Slack channel<\/a>.<\/p>\n<p>Related posts:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.altoros.com\/blog\/hyperledger-technical-f2f-meeting-draws-crowd-gets-some-work-done\/\">Hyperledger Technical F2F Meeting Draws Crowd, Gets Some Work Done<\/a><\/li>\n<li><a href=\"https:\/\/www.altoros.com\/blog\/technical-introduction-to-hyperledger-fabric\/\">In a World of Many Networks, Hyperledger Builds on IBM\u2019s Open Blockchain<\/a><\/li>\n<li><a href=\"https:\/\/www.altoros.com\/blog\/blockchain-at-ibm-interconnect-enterprise-deployment\/\">Blockchain at IBM InterConnect: Enterprise Deployment<\/a><\/li>\n<li><a href=\"https:\/\/www.altoros.com\/blog\/technical-introduction-to-hyperledger-fabric\/\">Technical Introduction to Hyperledger Fabric<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Want_more_details_Watch_the_full_video\"><\/span>Want more details? Watch the full 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: 6px;\">Digital Asset&#8217;s view on the ledger technology (<a href=\"#wistia_83l1f5260p?time=40\">00&#8217;40&#8221;<\/a>)<\/li>\n<li style=\"margin-bottom: 6px;\">What&#8217;s needed for ledger automation? (<a href=\"#wistia_83l1f5260p?time=98\">1&#8217;38&#8221;<\/a>)<\/li>\n<li style=\"margin-bottom: 6px;\">How much of the process should be automated? (<a href=\"#wistia_83l1f5260p?time=186\">3&#8217;06&#8221;<\/a>)<\/li>\n<li style=\"margin-bottom: 6px;\">Digital Asset&#8217;s inclination on the automation process (<a href=\"#wistia_83l1f5260p?time=250\">4&#8217;10&#8221;<\/a>)<\/li>\n<li style=\"margin-bottom: 6px;\">Why go with simple automation? (<a href=\"#wistia_83l1f5260p?time=325\">5&#8217;25&#8221;<\/a>)<\/li>\n<li style=\"margin-bottom: 6px;\">What is a smart yet trivial contract? (<a href=\"#wistia_83l1f5260p?time=377\">6&#8217;17&#8221;<\/a>)<\/li>\n<li style=\"margin-bottom: 6px;\">What is Digital Asset&#8217;s methodology? (<a href=\"#wistia_83l1f5260p?time=490\">8&#8217;10&#8221;<\/a>)<\/li>\n<li style=\"margin-bottom: 6px;\">What is Digital Asset&#8217;s contribution to the project? (<a href=\"#wistia_83l1f5260p?time=598\">9&#8217;58&#8221;<\/a>)<\/li>\n<li style=\"margin-bottom: 6px;\">Architecture of Digital Asset&#8217;s contribution (<a href=\"#wistia_83l1f5260p?time=720\">12&#8217;00&#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_83l1f5260p\" 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=\"About_the_speaker\"><\/span>About the speaker<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div>\n<div style=\"float: right;\"><a href=\"https:\/\/www.linkedin.com\/in\/tamasblummer\" target=\"_blank\" rel=\"attachment wp-att-13599 noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.altoros.com\/blog\/wp-content\/uploads\/2016\/04\/Tam\u00e1s-Blummer-Chief-Ledger-Architect-Digital-Asset-Holdings-BIO-150x150.png\" alt=\"Tam\u00e1s Blummer Chief Ledger Architect Digital Asset Holdings BIO\" width=\"150\" height=\"150\" class=\"aligncenter size-thumbnail wp-image-13599\" \/><\/a><\/div>\n<div style=\"width: 600px;\"><small><a href=\"https:\/\/www.linkedin.com\/in\/tamasblummer\" target=\"_blank\" rel=\"noopener noreferrer\">Tam\u00e1s Blummer<\/a> is an entrepreneur, a Quant software developer, a market risk manager, and a Bitcoin advocate. He designs and leads the implementation of Digital Asset Holdings&#8217; distributed ledger, being also a member of the Technical Steering Committee at the Hyperledger Foundation. Prior to joining Digital Asset, Tam\u00e1s built the Bitcoin mining control software at CoinTerra. He was the founder and CEO of Bits of Proof, a firm which constructed an enterprise-grade Bitcoin blockchain server. Tam\u00e1s has also served as a VP at Deutsche Bank (where he ran the IT systems for global fixed income processing), VP at MSCI, and Executive Director at Morgan Stanley.<\/small><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u201cThe system of ledgers is nothing new,\u201d so says Tam\u00e1s Blummer, Chief Ledger Architect at Digital Asset Holdings (DAH). During the presentation at a recent Hyperledger meetup in NYC, Tam\u00e1s talked about his perspective on Hyperledger and provided an overview of Digital Asset\u2019s contribution to the project.<\/p>\n<p>The Hyperledger Project (HLP) [&#8230;]<\/p>\n","protected":false},"author":32,"featured_media":13763,"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-13583","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 v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Digital Asset Contributes an Enterprise Blockchain Server to Hyperledger | Altoros<\/title>\n<meta name=\"description\" content=\"Tam\u00e1s 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