What do private Ethereum/EVM-based platforms mean for the Ethereum public chain?

What do private Ethereum/EVM-based platforms mean for the Ethereum public chain?I read about tons of businesses that are building their own private Ethereum based blockchains. This is always hailed as a good thing for Ethereum. The reason being that once these companies understand that their blockchain runs in a siloed world (similar to intranet(s)), they are going to want to connect to the public Ethereum blockchain (intranet).My question is: how easy will it be for these companies to connect with the Ethereum public chain? Apparently they are all building slightly different versions of Ethereum, so they would at least need to adapt their platform/dApps/contract slightly. I understand the differences between a Hyperledger/Corda based platform & Ethereum will be bigger than an EVM-based platform & Ethereum, but still, how easy is it?Do they all use Solidity? Does Ethereum 2.0 make this interoperability harder?Some examples:JP Morgan“JPMorgan Adds Privacy Features to Ethereum-Based Quorum Blockchain The New York-based financial institution will open-source the extension Tuesday, and is likely to use it with Quorum, the bank’s homegrown, private version of ethereum.”Fnality (Banco Santander, BNY Mellon, Barclays, CIBC, Commerzbank, Credit Suisse, ING, KBC Group, Lloyds Banking Group, MUFG Bank, Nasdaq, Sumitomo Mitsui Banking Corporation, State Street Corporation, and UBS)“Fnality’s tech partner, Clearmatics, is building these systems on a private version of ethereum.” “Clearmatics’ blockchain architecture for Fnality is a private version of ethereum called Autonity.”Komgo SA (ABN AMRO, BNP Paribas, Citi, Crédit Agricole Group, Gunvor, ING, Koch Supply & Trading, Macquarie, Mercuria, MUFG Bank, Natixis, Rabobank, Shell, SGS and Societe Generale)“komgo seeks to catalyze the world’s commodity trade finance network using Enterprise Ethereum blockchain technology to deliver higher levels of security, trust, and efficiency through automation and industry-tailored functionality.”“A private, shared blockchain network based on Enterprise Ethereum that serves as a secure, streamlined, and digital platform on which only authorized parties — banks, commodity traders, energy corporates, inspection companies and the broader ecosystem of participants — can store data, exchange transactions, and send messages more efficiently and securely based on permissions.”Kaleido” This is a step-by-step tutorial about creating an Ethereum-based private Blockchain network in less than 10 minutes with Kaleido.” ”Kaleido is a solution that lets you create Ethereum and Quorum-based Blockchain networks quickly and hassle-free.”EY Ops Chain for permissioned blockchainsCouldn’t find a source. I could be wrong, but I believe I heard Paul Brody say they are working on using Ops Chain for public chain applications (Nightfall), but are also offering EVM-based permissioned solutions for their clients.Thailand’s state-owned energy company, PTT“The platform will be built on the Energy Web Chain, a new Ethereum-based, public, “proof-of-authority” blockchain.”And many others……………Update: does this have anything to do with connecting private to public chains?https://github.com/clearmatics/ion/wiki/fabric-architectureClearmatic’s Ion submitted by /u/Vol_Har[link] [comments]from Ethereum https://www.reddit.com/r/ethereum/comments/dlaib5/what_do_private_ethereumevmbased_platforms_mean/
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