Not a single fraud proof has been submitted on Arbitrum since it first launched its mainnet with the built-in security feature in August 2021, according to Ed Felten, co-founder and chief scientist of the Arbitrum-building Offchain Labs.<\/p>\n
Operating as an Ethereum layer-2, Arbitrum\u2019s interactive, multi-round fraud proofs work by allowing a layer-1 verifier contract to decide whether the challenger\u2019s fraud-proof submission is valid. If so, the fraudulent validator\u2019s stake is slashed. <\/p>\n
Fraud proofs are submitted by challenging validators when it considers another validator to have fraudulently or otherwise incorrectly assembled an incoming batch of transactions into the next block.<\/p>\n
However, Arbitrum\u2019s mainnet is yet to see a fraud-proof attempt let alone a successful challenge, Felten told Cointelegraph at Korean Blockchain Week on Sept. 4:<\/p>\n
\u201cNot on mainnet. We did have one or two on Ethereum proof-of-work (POW). After the Merge, […] there was a version of Arbitrum running on the Ethereum POW fork and somebody did try to steal all the data and there was a successful challenge which defeated that.\u201d<\/p><\/blockquote>\n
Felten said few fraud proof attempts have been made because malicious-intended validators are risk losing their entire stake.<\/p>\n
\u201cIf any one person notices it and disputes your claim then you will surely lose your stake, so there\u2019s a stronger disincentive to try,\u201d Felten added.<\/p>\n
Felten said there\u2019s currently a permission set of validators \u2014 roughly 12 \u2014 that participate in the fraud proof game.<\/p>\n
He also added that Arbitrum is rolling out a new iteration of the fraud proofs called \u201cBOLD\u201d protocol \u2014 (Bounded Liquidity Delay) which he says gives Arbitrum a faster guarantee for challenges.<\/p>\n
\u201cIn the current version […] an adversary who’s willing to sacrifice multiple stakes can arrange to cause \u201cN\u201d weeks of delay if they’re willing to sacrifice \u201cN\u201d stakes […] But the BOLD protocol says no matter how many stakes they sacrifice, they’ll be defeated in about eight days.\u201d<\/p><\/blockquote>\n
Related: <\/em><\/strong>Arbitrum founder says Stylus is a game changer for EVMs <\/em><\/strong><\/p>\nArbitrum\u2019s BOLD protocol was rolled out by Offchain Labs on Aug. 4.<\/p>\n
Felten said Arbitrum\u2019s fraud proof feature will soon be permissionless, allowing anyone to push towards ensuring the correctness of the chain when challenges are made.<\/p>\n
Magazine: <\/em><\/strong>DeFi Dad, Hall of Flame: Ethereum is \u2018woefully undervalued\u2019 but growing more powerful<\/em><\/strong><\/p>\nSource: Read Full Article<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Not a single fraud proof has been submitted on Arbitrum since it first launched its…<\/p>\n","protected":false},"author":4,"featured_media":193483,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"yoast_head":"\n
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