Bitcoin

Bitcoin sidechain creators tout new ‘permissionless’ version BitVM2 — TradingView News

The creators of the Bitcoin scaling solution Bitcoin Virtual Machine (BitVM) have floated the second iteration of their sidechain, dubbed “BitVM2,” and the BitVM Bridge, which they say now offers “major improvements” to the original system. 

In an Aug. 15 post to X, BitVM co-founder Alexei Zamyatin shared an overview of a new whitepaper that introduces a new framework for how BitVM2 and the BitVM Bridge would function.

ZeroSync project lead and BitVM creator Robin Linus first unveiled BitVM in October last year in a bid to bring off-chain smart contracts to the Bitcoin network without requiring a soft fork.

Cointelegraph

One of the main improvements of the latest version is that it will now be “permissionless” meaning that anyone can challenge suspicious transactions, with only three transactions required to complete a challenge.

The previous version of BitVM required up to 70 transactions to complete a challenge, and only a small number of specific parties could make challenge requests.

What does BitVM do?

Overall, BitVM2’s main focus is to enable a rollup — a separate network built on Bitcoin — capable of processing transactions more efficiently but with similar security to the original Bitcoin network.

The BitVM Bridge would allow users to safely transfer their Bitcoin to the rollup and withdraw it, with shorter lock-up periods and smaller upfront capital requirements.

The paper was led by ZeroZync project lead Robin Linus and other co-authors, including Zamyatin, Lukas Aumayr, Andrea Pelosi, Zeta Avirikioti, and Matteo Maffei.

Cointelegraph

BitVM was unveiled in an Oct. 9 whitepaper titled “BitVM: Compute Anything on Bitcoin” — enabling Turing-complete Bitcoin contracts without altering any of Bitcoin’s consensus rules.


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