{"id":13,"date":"2016-03-26T01:33:38","date_gmt":"2016-03-26T01:33:38","guid":{"rendered":"https:\/\/www.w3.org\/community\/blockchain\/?page_id=13"},"modified":"2016-03-29T06:06:43","modified_gmt":"2016-03-29T06:06:43","slug":"workshop-report-at-25mar2016","status":"publish","type":"page","link":"https:\/\/www.w3.org\/community\/blockchain\/workshop-report-at-25mar2016\/","title":{"rendered":"Workshop Report at 25\/Mar\/2016"},"content":{"rendered":"<p class=\"p1\"><b>attendees<\/b><\/p>\n<ul>\n<li class=\"p2\"><b> <\/b>LGCNS: Sean Kim, Baeck Seung Eun, Han Seung Jun<\/li>\n<li class=\"p2\">Konkuk Univ: Nick Lee<\/li>\n<li class=\"p2\">Blocko: Allan Jonghwan Kim, Seok Ho Chul, Kim Won Beom<\/li>\n<li class=\"p2\">ETRI: Phillip Seyoung Huh<\/li>\n<li class=\"p2\">PayGate: Mountie Lee<\/li>\n<li class=\"p2\">Kookmin Bank: Hyugsoon Kwon<\/li>\n<\/ul>\n<p class=\"p1\"><b>workshop purpose<\/b><\/p>\n<ul>\n<li class=\"p2\"><b> <\/b>approaching open standards based on blockchain<\/li>\n<li class=\"p2\">recommend usage guideline of storage including torrent, public\/private blockchain, sidechain and CDN<\/li>\n<li class=\"p2\">study and evalue new techs<\/li>\n<li class=\"p2\">initial preparing workshop<\/li>\n<li class=\"p2\">approaching details, prototyping<\/li>\n<\/ul>\n<p class=\"p1\"><b>Perspectives from Blockchain Industry<\/b><\/p>\n<ul>\n<li class=\"p2\"><span class=\"s1\"><b> <\/b><a href=\"https:\/\/docs.google.com\/presentation\/d\/17KmamYtO9J4Ae1DMLd9MGtWrjPNaYjGVsTu2Dn4QFuA\/edit?usp=sharing\" target=\"_blank\" rel=\"nofollow\"><span class=\"s2\">https:\/\/docs.google.com\/presentation\/d\/17KmamYtO9J4Ae1DMLd9MGtWrjPNaYjGVsTu2Dn4QFuA\/edit?usp=sharing<\/span><\/a><\/span><\/li>\n<li class=\"p3\">share basic understanding for blockchain<\/li>\n<li class=\"p4\">Proliferation of blockchain applications\n<ul>\n<li class=\"p4\">various applications are introduced currently<\/li>\n<li class=\"p4\">blockchain is the key tech for new generation<\/li>\n<li class=\"p4\">strong industry requirement<\/li>\n<\/ul>\n<\/li>\n<li class=\"p4\">Blockchain-based Applications in Real World\n<ul>\n<li class=\"p4\">many interests<\/li>\n<li class=\"p4\">but less implementations<\/li>\n<li class=\"p4\">same experience at the starting stage of PC, Internet<\/li>\n<\/ul>\n<\/li>\n<li class=\"p4\">Case Study: Blockchain-base Auth\n<ul>\n<li class=\"p4\">different implementations by different vendors<\/li>\n<li class=\"p4\">Blocko suggest a standard compliant with existing PKI utilizing blockchain tech<\/li>\n<li class=\"p4\">faced numerous problems in adoption<\/li>\n<li class=\"p4\">Problems\n<ul>\n<li class=\"p4\">Lack of Understanding\n<ul>\n<li class=\"p4\">peoples don&#8217;t understand well<\/li>\n<li class=\"p4\">same experience for new techs<\/li>\n<\/ul>\n<\/li>\n<li class=\"p4\">Lack of Engineering Standard\n<ul>\n<li class=\"p4\">how data should be represented and stored?<\/li>\n<li class=\"p4\">which cryptography?<\/li>\n<li class=\"p4\">how to integrate with existing security subsystems?<\/li>\n<li class=\"p4\">no goto-toolkit<\/li>\n<li class=\"p4\">many bitcoin libraries but too many choices<\/li>\n<\/ul>\n<\/li>\n<li class=\"p4\">Lack of Evaluation\/Audit\n<ul>\n<li class=\"p4\">on regulation side, audit is important like CC<\/li>\n<li class=\"p4\">best-practices are not shared well<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li class=\"p4\">What to do? we need killer applications<\/li>\n<li class=\"p4\">Solutions\n<ul>\n<li class=\"p4\">Education\n<ul>\n<li class=\"p4\">need effective education path with organized efforts<\/li>\n<li class=\"p4\">coffee-break style education is also considerable<\/li>\n<\/ul>\n<\/li>\n<li class=\"p4\">Standardization of Engineering Assets\n<ul>\n<li class=\"p4\">need standards and recommendations<\/li>\n<\/ul>\n<\/li>\n<li class=\"p4\">Standardization of Protocols\/Specs\n<ul>\n<li class=\"p4\">need basic spec<\/li>\n<li class=\"p4\">lessoned learn from FIDO\n<ul>\n<li class=\"p4\">FIDO provides specs, education and certification<\/li>\n<li class=\"p4\">two specs: biometric and two factor auth<\/li>\n<li class=\"p4\">suggesting architecture, protocol and api<\/li>\n<li class=\"p4\">doing educational efforts and give certification<\/li>\n<li class=\"p4\">but FIDO seams commercial oriented<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li class=\"p4\">Benefits from Standarization\n<ul>\n<li class=\"p4\">experts are preparing well with their own spec<\/li>\n<li class=\"p4\">reduced effort<\/li>\n<li class=\"p4\">more secure<\/li>\n<li class=\"p4\">robust implementations<\/li>\n<li class=\"p4\">more credibility and usability for end users<\/li>\n<li class=\"p4\">with standard, we can expect many blockchain based applications at near future<\/li>\n<\/ul>\n<\/li>\n<li class=\"p4\">Blocko&#8217;s contributions\n<ul>\n<li class=\"p4\">blockchain-based PKI specification\n<ul>\n<li class=\"p4\"><span class=\"s5\"><a href=\"https:\/\/coinstack.zendesk.com\/hc\/ko\/article_attachments\/204746008\/Blocko_-_OpenKeyChain.pdf\" target=\"_blank\" rel=\"nofollow\">https:\/\/coinstack.zendesk.com\/hc\/ko\/article_attachments\/204746008\/Blocko_-_OpenKeyChain.pdf<\/a><\/span><\/li>\n<li class=\"p4\">similar to colored coin<\/li>\n<li class=\"p4\">is it right approach alternating\/defining OP codes?<\/li>\n<\/ul>\n<\/li>\n<li class=\"p4\">SDK<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p class=\"p1\"><b>Perspectives from Banking Industry<\/b><\/p>\n<ul>\n<li class=\"p2\"><b> <\/b>R3\n<ul>\n<li class=\"p2\">MS azure, 5 more blockchains are tested. ethereum is tested lastly<\/li>\n<li class=\"p2\">MS BaaS\n<ul>\n<li class=\"p2\">providing almost free for blockchain industries<\/li>\n<li class=\"p2\">IBM and MS compete<\/li>\n<\/ul>\n<\/li>\n<li class=\"p2\">R3 requested too much annual fee over 250,000USD<\/li>\n<li class=\"p2\">R3 has more interest now non-bank participants<\/li>\n<\/ul>\n<\/li>\n<li class=\"p2\">Cloud Service\n<ul>\n<li class=\"p2\">we have several sensitive issues using cloud services<\/li>\n<li class=\"p2\">adopting cloud service like MS BaaS in financial industry is currently unavailable in some countries like Korea<\/li>\n<li class=\"p2\">same issue in EU<\/li>\n<\/ul>\n<\/li>\n<li class=\"p2\">ISO20022\n<ul>\n<li class=\"p2\">ISO20022 is trying to define message and flow of financial institutions<\/li>\n<li class=\"p2\">Korean banks is refusing ISO20022 standard because of cost and other legacy systems<\/li>\n<li class=\"p2\">KB Bank has strong interest for blockchain. but not so much interest on ISO20022<\/li>\n<\/ul>\n<\/li>\n<li class=\"p2\">in ethereum, IBAN code is added in spec recently. in address structure<\/li>\n<\/ul>\n<p class=\"p1\"><b>Perspectives from non-Banking Industry<\/b><\/p>\n<ul>\n<li class=\"p1\">blockchain tech and capital market (link :\u00a0<a href=\"https:\/\/goo.gl\/E4IYMa\" target=\"_blank\" rel=\"nofollow\">https:\/\/goo.gl\/E4IYMa<\/a> )<\/li>\n<li class=\"p1\">pros and cons of blockchain\n<ul>\n<li class=\"p1\">pros\n<ul>\n<li class=\"p1\">reduce settlement time between institutions<\/li>\n<li class=\"p1\">easy document management<\/li>\n<li class=\"p1\">reduce system risk<\/li>\n<li class=\"p1\">improve effectiveness of M\/O, B\/O operation<\/li>\n<li class=\"p1\">reduce cost of ledger system management<\/li>\n<\/ul>\n<\/li>\n<li class=\"p1\">cons\n<ul>\n<li class=\"p1\">technical limitation<\/li>\n<li class=\"p1\">unable to revoke<\/li>\n<li class=\"p1\">limit of market and regulation<\/li>\n<li class=\"p1\">different attitudes of institutions<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>multiple marketplaces for stock exchange<\/li>\n<li class=\"p1\">experience\u00a0of stock market and OTC market limitation\n<ul>\n<li class=\"p1\">use OTC marketplace for growth momentum<\/li>\n<li class=\"p1\">structure of open platform for startup exit<\/li>\n<li class=\"p1\">issue stock at blockchain as example implementation at 2015<\/li>\n<li class=\"p1\">issuing stock based on open asset. manage stockholder list via blockchain<\/li>\n<li class=\"p1\">store evidence of stock exchanging to blockchain for OTC stock<\/li>\n<li class=\"p1\">trying to use public blockchain. but institutions has more interest for private chain<\/li>\n<li class=\"p1\">use separated private storage to manage details<\/li>\n<li class=\"p1\">are the existing players restricting access to private chain from other players? =&gt; they don&#8217;t think 3rd party players<\/li>\n<li class=\"p1\">now starting new different private market (confirmed by regulator)<\/li>\n<li class=\"p1\">researches\n<ul>\n<li class=\"p1\">Australia marketplace focused on settlement only<\/li>\n<li class=\"p1\">researched nasdaq case : still non-Live status but no detail<\/li>\n<li class=\"p1\">crowd funding case\n<ul>\n<li class=\"p1\">central repository has role to manage crowd\u00a0funding investors. conflict with blockchain<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li class=\"p1\">other types of digital assets can be placed to same model of OTC stock<\/li>\n<li class=\"p1\">what was the biggest issues : how to post maker value<\/li>\n<\/ul>\n<\/li>\n<li class=\"p1\">smart contract\n<ul>\n<li class=\"p1\">value awareness concept is important<\/li>\n<li class=\"p1\">how to interface external system which is keeping value with blockchain<\/li>\n<\/ul>\n<\/li>\n<li class=\"p1\">document stamping\n<ul>\n<li class=\"p1\">currently generalized now<\/li>\n<\/ul>\n<\/li>\n<li class=\"p1\">Augur\n<ul>\n<li class=\"p1\">it is illegal in US or other country<\/li>\n<li class=\"p1\">answer &#8220;is futures trading gambling&#8221;?<\/li>\n<li class=\"p1\">we have to recommend minimum guideline to regulator<\/li>\n<\/ul>\n<\/li>\n<li class=\"p1\">blockchain can be base of IoT service<\/li>\n<\/ul>\n<p class=\"p1\"><b>study and evaluate other techs related to blockchain<\/b><\/p>\n<ul>\n<li class=\"p2\"><b> <\/b>including activities\n<ul>\n<li class=\"p2\">digital currency group<\/li>\n<li class=\"p2\">W3C groups: CryptoLedgers, InterLedger<\/li>\n<li class=\"p2\">Chinese Groups\n<ul>\n<li class=\"p2\">Chinese Blockchain Miner&#8217;s association is not standardizing body<\/li>\n<li class=\"p2\">they has different color<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li class=\"p2\">Ethereum\n<ul>\n<li class=\"p2\">LGCNS reviewed other techs and activities but picked Ethereum<\/li>\n<li class=\"p2\">is it really possible to implement IoT service with Ethereum?<\/li>\n<\/ul>\n<\/li>\n<li class=\"p2\">we don&#8217;t need to develop totally new standard but improvement by referencing other standards, activities and techs\n<ul>\n<li class=\"p2\">de-facto is actually important<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p class=\"p1\"><b>Storage<\/b><\/p>\n<ul>\n<li class=\"p2\"><b> <\/b>Torrent as a storage\n<ul>\n<li class=\"p2\">magnet link of torrent? is this permant? magnet link is hash value<\/li>\n<li class=\"p2\">we can consider distributed hash table tech. bit-torrent is one of example of implementations<\/li>\n<li class=\"p2\">consider open source distributed file system<\/li>\n<\/ul>\n<\/li>\n<li class=\"p2\">Public Blockchain\n<ul>\n<li class=\"p2\">any concerns using public-blockchain? ==&gt; not so much reststance<\/li>\n<li class=\"p2\">store linked-data at blockchain, store main data to CDN or other distributed storage<\/li>\n<li class=\"p2\">scalability\n<ul>\n<li class=\"p2\">TPS has totally different view between blockchain and financial trans<\/li>\n<li class=\"p2\">mis-understanding<\/li>\n<li class=\"p2\">Eris has different approach. changing consensus algorithm will increase scalability<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li class=\"p2\">blockchain 2.0\n<ul>\n<li class=\"p2\">calculate guess value. set guess-limit. no-limit for size<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p class=\"p1\"><b>Use Cases<\/b><\/p>\n<ul>\n<li class=\"p2\"><b> <\/b>store non face-to-face evidence in blockchain<\/li>\n<li class=\"p2\">using blockchain as replacement (fully or partially) of CA\/RA<\/li>\n<li class=\"p2\">inter-bank communications (payment, balance check&#8230;)<\/li>\n<li class=\"p2\">stock(OTC) issue\/exchange<\/li>\n<li class=\"p2\">content licensing<\/li>\n<\/ul>\n<p class=\"p1\"><b>ACTION Items<\/b><\/p>\n<ul>\n<li class=\"p2\"><b> <\/b>generalize OpenKeyChain spec\n<ul>\n<li class=\"p2\">prepare english version<\/li>\n<li class=\"p2\">put on WIKI<\/li>\n<li class=\"p2\">generaze it<\/li>\n<\/ul>\n<\/li>\n<li class=\"p2\">share knowledge about ISO20022<\/li>\n<li class=\"p2\">develop UseCases<\/li>\n<li class=\"p2\">announce\n<ul>\n<li class=\"p2\">chair will announce for group formation<\/li>\n<li class=\"p2\">reference : https:\/\/goo.gl\/Kvycbe<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p class=\"p1\"><b>Group Formation<\/b><\/p>\n<ul>\n<li class=\"p2\"><b> <\/b>scope\n<ul>\n<li class=\"p2\">we don&#8217;t need to focus on Web only<\/li>\n<li class=\"p2\">to define scope\n<ul>\n<li class=\"p2\">need to study or take full view of other technologies including ethereum, bitcoin<\/li>\n<li class=\"p2\">and including more for Eris, Tendermint, Hyperledger, IBM&#8217;s OBC-peers<\/li>\n<\/ul>\n<\/li>\n<li class=\"p2\">try to narrow scope as much as we can<\/li>\n<li class=\"p2\">bitcoin and ethereum is good starting point<\/li>\n<li class=\"p2\">Blockchain CG focus on which boundaries? narrow to financial industries or more generalized scope?<\/li>\n<li class=\"p2\">research use cases more<\/li>\n<\/ul>\n<\/li>\n<li class=\"p2\">chairs\n<ul>\n<li class=\"p2\">nicklee002 (LEE YOUNG HWAN)<\/li>\n<li class=\"p2\">reserve room for other participant as co-chair<\/li>\n<\/ul>\n<\/li>\n<li class=\"p2\">language\n<ul>\n<li class=\"p2\">do we use bi-lingual communication? or officially using ONE language?<\/li>\n<li class=\"p2\">English as Main language (unofficially use local languages)<\/li>\n<\/ul>\n<\/li>\n<li class=\"p2\">communication\n<ul>\n<li class=\"p2\">communication channel: irc, mailing list, teleconference, f2f meeting(incl workshop)<\/li>\n<li class=\"p2\">teleconference\n<ul>\n<li class=\"p2\">tool : hangout<\/li>\n<li class=\"p2\">date &amp; time : Thursday 4:00 PM KST bi-weekly (next teleconference : 7\/Apr\/2016 KST)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li class=\"p2\">F2F meetings\n<ul>\n<li class=\"p2\">1\/Jun\/2016 in KR as first F2F meeting<\/li>\n<li class=\"p2\">at TPAC 2016 at Lisbon<\/li>\n<\/ul>\n<\/li>\n<li class=\"p2\">charter\n<ul>\n<li class=\"p2\">Blocko will edit charter draft<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>attendees LGCNS: Sean Kim, Baeck Seung Eun, Han Seung Jun Konkuk Univ: Nick Lee Blocko: Allan Jonghwan Kim, Seok Ho Chul, Kim Won Beom ETRI: Phillip Seyoung Huh PayGate: Mountie Lee Kookmin Bank: Hyugsoon Kwon workshop purpose approaching open standards &hellip; <a href=\"https:\/\/www.w3.org\/community\/blockchain\/workshop-report-at-25mar2016\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":5323,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_s2mail":"","footnotes":""},"class_list":["post-13","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.w3.org\/community\/blockchain\/wp-json\/wp\/v2\/pages\/13","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.w3.org\/community\/blockchain\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.w3.org\/community\/blockchain\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.w3.org\/community\/blockchain\/wp-json\/wp\/v2\/users\/5323"}],"replies":[{"embeddable":true,"href":"https:\/\/www.w3.org\/community\/blockchain\/wp-json\/wp\/v2\/comments?post=13"}],"version-history":[{"count":3,"href":"https:\/\/www.w3.org\/community\/blockchain\/wp-json\/wp\/v2\/pages\/13\/revisions"}],"predecessor-version":[{"id":18,"href":"https:\/\/www.w3.org\/community\/blockchain\/wp-json\/wp\/v2\/pages\/13\/revisions\/18"}],"wp:attachment":[{"href":"https:\/\/www.w3.org\/community\/blockchain\/wp-json\/wp\/v2\/media?parent=13"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}