“There’s no such thing as a safe hard fork,” Electrum lead developer Thomas Voegtlin corrected an audience member at the Breaking Bitcoin conference in Paris last weekend. “I would recommend to have replay protection, of course,” he added.
Community support for SegWit2x, the Bitcoin scaling proposal spearheaded by Barry Silbert’s Digital Currency Group, was virtually absent in Paris. Whenever the “2x” part of the New York Agreement was discussed in the French capital, speakers and visitors overwhelmingly considered it a risk to defend against — not a proposal to help succeed.
Electrum users, for example, will not blindly follow hash power in case of a chain-split, Voegtlin explained throughout his talk; instead, they’ll be able to choose which side of such a split they want to be on. And importantly, the lightweight wallet will implement security measures to prevent users from accidentally spending funds on both chains: “replay protection” that seems unlikely to be implemented on a protocol level if SegWit2x does fork off.
“We are ready,” Voegtlin said. “If [SegWit2x] doesn’t include replay protection, the fork detection we have in Electrum will be useful.”Breaking Bitcoin
Inspired by the successful Scaling Bitcoin conference format, the French Bitcoin community hosted the first edition of Breaking Bitcoin two blocks from the Eiffel Tower last weekend. Bitcoin developers, academics and other technical-minded Bitcoiners gathered for a diverse program, but with the common denominator being Bitcoin’s security.
“For the past two years, the Bitcoin community has been obsessing with scale and scalability,” Kevin Loaec, managing director at Chainsmiths and co-organizer of the event, told Bitcoin Magazine. “But I’m not so worried about scale, I’m worried about mining centralization, a lack of privacy and fungibility ... these kinds of things. As an industry we need to recognize there are more challenges than just scalability; h...