{"id":482603,"date":"2022-08-09T05:43:24","date_gmt":"2022-08-09T02:43:24","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/f2pool-co-founder-responds-to-allegations-its-cheating-the-ethereum-pow-system\/"},"modified":"2022-08-09T05:43:24","modified_gmt":"2022-08-09T02:43:24","slug":"f2pool-co-founder-responds-to-allegations-its-cheating-the-ethereum-pow-system","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/f2pool-co-founder-responds-to-allegations-its-cheating-the-ethereum-pow-system\/","title":{"rendered":"# F2Pool co-founder responds to allegations it&#8217;s cheating the Ethereum POW system"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a3c56699b896\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" 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: #dd3333;color:#dd3333\" 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><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a3c56699b896\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/f2pool-co-founder-responds-to-allegations-its-cheating-the-ethereum-pow-system\/#%E2%80%9D_F2Pool_co-founder_responds_to_allegations_its_cheating_the_Ethereum_POW_system_%E2%80%9C\" >&#8221; F2Pool co-founder responds to allegations it&#8217;s cheating the Ethereum POW system &#8220;<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/buradabiliyorum.com\/en\/f2pool-co-founder-responds-to-allegations-its-cheating-the-ethereum-pow-system\/#How_the_%E2%80%98attack_works\" >How the \u2018attack\u2019 works<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"%E2%80%9D_F2Pool_co-founder_responds_to_allegations_its_cheating_the_Ethereum_POW_system_%E2%80%9C\"><\/span>&#8221; F2Pool co-founder responds to allegations it&#8217;s cheating the Ethereum POW system &#8220;<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p><img decoding=\"async\" src=\"https:\/\/images.cointelegraph.com\/images\/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjItMDgvZDRhODRmZGQtNzYxMS00MjExLWIwZjgtZjVkOThlNmQ0MzJhLmpwZw==.jpg\" \/><\/p>\n<div class=\"post-content\" data-v-28d77a7a>F2Pool co-founder Chun Wang has responded to allegations that his mining pool has been manipulating Ethereum block timestamps to\u00a0\u201cobtain consistently higher mining rewards.&#8221;<\/p>\n<p>The allegations came from an Aug. 5 paper from researchers at The Hebrew University, claiming the mining pool has been engaging in a &#8220;consensus-level&#8221; attack on Ethereum over the last two years to gain an edge over &#8220;honest&#8221; miners.\u00a0\u00a0<\/p>\n<p> However, Wang on <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/social-mediaa\/\" data-internallinksmanager029f6b8e52c=\"1\" title=\"Social Media\" target=\"_blank\" rel=\"noopener\">Twitter<\/a> responded by saying that \u201cwe respect the *consensus* as is\u201d, implying that intentionally exploiting the system&#8217;s rules doesn\u2019t necessarily mean that rules have been broken.<\/p>\n<blockquote class=\"twitter-tweet\">\n<p lang=\"en\" dir=\"ltr\">We respect the *consensus* as is. If you don\u2019t like the consensus, convince <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/twitter.com\/TimBeiko?ref_src=twsrc%5Etfw\">@TimBeiko<\/a> to send me another Announcement and change it. <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/t.co\/Lmw2INzOzg\">https:\/\/t.co\/Lmw2INzOzg<\/a><\/p>\n<p>\u2014 Chun at 78\u00b0N (@satofishi) <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/twitter.com\/satofishi\/status\/1556510404116889600?ref_src=twsrc%5Etfw\">August 8, 2022<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><br \/>\nEarlier this week, the researchers shared what they claim has been the first proof of a \u201cconsensus-level attack\u201d on Ethereum, in which miners such as F2Pool have found a way to manipulate block timestamps to consistently get higher mining rewards compared to mining \u201chonestly.\u201d<\/p>\n<p>The\u00a0<a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/eprint.iacr.org\/2022\/1020.pdf\">research paper<\/a>\u00a0was penned by cryptocurrency lecturer Aviv Yaish, software algorithm developer Gilad Stern, and computer scientist Aviv Zohar, alleging that Ethereum mining pool F2Pool has been one of the miners that have been using this timestamp manipulation strategy. <\/p>\n<p>\u201cAlthough most mining pools produce relatively inconspicuous-looking blocks, F2Pool blatantly disregards the rules and uses false timestamps for its blocks,\u201d said Yaish, adding that the mining pool has been executing the attack over the last two years. <\/p>\n<p>Wang also <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/download-scripts-themes-apps\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Download Scripts &amp; Themes &amp; Apps\" target=\"_blank\" rel=\"noopener\">app<\/a>eared to own up to evidence presented by Yaish, suggestin that the timestamp manipulation was being done intentionally.\u00a0<\/p>\n<blockquote class=\"twitter-tweet\">\n<p lang=\"en\" dir=\"ltr\">I can\u2019t stop appreciate this elegant implementation of what we\u2019ve done over the past two years.<\/p>\n<p>I killed <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/twitter.com\/search?q=%24TRC&amp;src=ctag&amp;ref_src=twsrc%5Etfw\">$TRC<\/a> Terracoin as early as 2013 using a similar timestamp manipulation approach by lower the difficulty to virtually zero. A robust system must withstand all kind of tests. <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/t.co\/z8pLdLtAU0\">https:\/\/t.co\/z8pLdLtAU0<\/a><\/p>\n<p>\u2014 Chun at 78\u00b0N (@satofishi) <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/twitter.com\/satofishi\/status\/1556518282383036416?ref_src=twsrc%5Etfw\">August 8, 2022<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p>F2Pool is a geographically distributed mining pool, which mostly mines blocks on the Bitcoin, Ethereum, and Litecoin networks.\u00a0<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_the_%E2%80%98attack_works\"><\/span>How the \u2018attack\u2019 works<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>According to the researchers, Ethereum\u2019s current proof-of-work (POW) consensus laws include a vulnerability that gives miners a \u201ccertain degree of freedom\u201d when setting timestamps, which means that false timestamps can be created. <\/p>\n<blockquote><p>\u201cFor example, a miner can start mining a block now, but set the block\u2019s timestamp to actually be 5 seconds in the past, or 10 seconds in the future. As long as this timestamp is within a certain reasonable bound, the block will still be considered valid, according to Ethereum\u2019s consensus laws.\u201d<\/p><\/blockquote>\n<p>The ability to create these false timestamps gives these miners an edge in a &#8220;tie-breaking&#8221; scenario as a miner can replace another miner\u2019s blocks of the same block height by making the timestamp low enough to increase the block&#8217;s mining difficulty.<\/p>\n<p><strong><em>Related: Ethereum Merge: How will the PoS transition impact the ETH ecosystem?<\/em><\/strong><\/p>\n<p>However, the researchers also noted that the vulnerability may be solved after Ethereum transitions to proof-of-stake (POS) after the upcoming <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/ethereum.org\/en\/upgrades\/merge\/\">Merge<\/a> on Sep. 19, which utilizes a different set of consensus rules. <\/p>\n<blockquote><p>&#8220;An obvious mitigation technique which will solve both this attack and any other PoW-related one, is to migrate Ethereum\u2019s consensus mechanism to proof-of-stake (PoS).&#8221;<\/p><\/blockquote>\n<p>&#8220;Other solutions which might be smaller in scope and thus easier to implement are to adopt better fork-choosing rules, use reliable timestamps, or avoid using timestamps for difficulty adjustments altogether,&#8221; the researchers added.\u00a0<\/p>\n<p><template data-name=\"subscription_form\" data-type=\"crypto_biz\"><\/template><\/div>\n<blockquote><p><strong><span style=\"color: #ff6600;\">If you liked the article, do not forget to share it with your friends. Follow us on\u00a0<span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/news.google.com\/publications\/CAAqBwgKMLG0nwswvr63Aw\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google News<\/a><\/span>\u00a0too, click on the star and choose us from your favorites.<\/span><\/strong><\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\">For forums sites go to <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/forum.buradabiliyorum.com\/\" target=\"_blank\" rel=\"noopener\">Forum.BuradaBiliyorum.Com<\/a><\/span><\/strong>\n<\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\"><strong>If you want to read more <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/news\/\" data-internallinksmanager029f6b8e52c=\"2\" title=\"News\" target=\"_blank\" rel=\"noopener\">News<\/a> articles, you can visit our <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/en.buradabiliyorum.com\/general\/\" target=\"_blank\" rel=\"noopener\">General category.<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<p><span style=\"color: black;\"><a style=\"color: #ff9900;\" href=\"https:\/\/cointelegraph.com\/news\/f2pool-co-founder-responds-to-allegations-it-s-cheating-the-ethereum-pow-system\" target=\"_blank\" rel=\"noopener\">Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8221; F2Pool co-founder responds to allegations it&#8217;s cheating the Ethereum POW system &#8220; F2Pool co-founder Chun Wang has responded to allegations that his mining pool has been manipulating Ethereum block timestamps to\u00a0\u201cobtain consistently higher mining rewards.&#8221; The allegations came from an Aug. 5 paper from researchers at The Hebrew University, claiming the mining pool has&#8230;<\/p>\n","protected":false},"author":1,"featured_media":482604,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/images.cointelegraph.com\/images\/1200_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjItMDgvZDRhODRmZGQtNzYxMS00MjExLWIwZjgtZjVkOThlNmQ0MzJhLmpwZw==.jpg","fifu_image_alt":"","footnotes":""},"categories":[1],"tags":[74894,75793,74891,75042],"class_list":["post-482603","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","tag-blockchain","tag-consensus","tag-ethereum","tag-mining"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/482603","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=482603"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/482603\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/482604"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=482603"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=482603"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=482603"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}