Bitcoin, which is within the midst of a developer renaissance with the arrival of its personal NFTs and decentralized finance (DeFi) providers, had a formidable turnout of builders on the convention. So did Polkadot, the “hub-and-spoke” blockchain created by Gavin Wooden, an Ethereum co-founder who used to market his new venture as an enchancment over the Ethereum mannequin. Even Solana, the speed-focused community that is lengthy positioned itself as an “ETH Killer,” had a well-attended sales space at Denver’s Nationwide Western Advanced, the convention’s venue.