ETHDenver has put an end to speculation that its flagship Ethereum gathering was being canceled, saying a 10th-anniversary edition for 2027 is in the works, while warning that fake ticket sales have already begun.
In a post on X on Wednesday, the official ETHDenver account said the event is still being planned and promised more details in October. The statement follows weeks of uncertainty around the future of the Denver gathering, as the organizers had yet to announce a 2027 edition and third-party event listings began appearing online.
“What we’re cooking for the tenth anniversary is bigger than a conference or a festival. It stays weird, it’s built around the core of Ethereum, and we’ll share it in October,” reads the post. “Please DO NOT buy tickets from sites advertising ETHDenver 27. ETHDenver is, and always will be, free.”
What we’re cooking for the tenth anniversary is bigger than a conference or a festival. It stays weird, it’s built around the core of Ethereum, and we’ll share it in October.
Please DO NOT buy tickets from sites advertising ETHDenver 27. ETHDenver is, and always will be, free. pic.twitter.com/128koBP9MI
— ETHDenver 🏔🦬🦄 (@EthereumDenver) September 30, 2026
Third-party websites have meanwhile moved ahead with 2027 listings, with some publishing February dates and venue information. One current listing, for example, gives Feb. 17-21, 2027 and the National Western Center, even though ETHDenver had not yet announced those dates officially.
A Decade of ETHDenver
ETHDenver began in 2018 as an Ethereum-focused hackathon and community gathering at Denver’s Sports Castle. The inaugural event ran from Feb. 15-18, 2018, with 438 participants registered for its hackathon and $59,750 in prizes.
The event subsequently evolved into a much larger combination of hackathon, conference, workshops, community events and informal gatherings. By 2024, organizers described ETHDenver as the world’s largest and longest-running blockchain-focused #BUIDLathon, with more than 25,000 innovators from over 120 countries.
ETHDenver also maintained its free-access model as it grew, including the 2021 edition, held entirely online because of the pandemic.
The event has since become closely associated with SporkDAO, the community-owned organization behind ETHDenver. SporkDAO describes itself as the “community-owned, community-powered engine” driving ETHDenver and related initiatives. Its membership system is also built around participation in the event, with free ETHDenver admission among the stated member benefits.
That community structure helps explain why ETHDenver’s ticketing model differs from a conventional conference. Admission has generally been tied to an application or membership process rather than simply purchasing a pass from a ticket marketplace.
From Hackathon to Ethereum Ecosystem Gathering
To date, the #BUIDLathon has remained central to the event, but ETHDenver has expanded far beyond software development.
The 2026 program at Denver’s National Western Center included dedicated tracks for security, developer talks and workshops, policy and regulation, DeFi, venture capital and pitch sessions, alongside an AI-agent demo day and a 24-hour #BUIDLathon submission period.
The 2026 edition also featured a Museum of Ethereum exhibition documenting the network’s history and an extensive makerspace built around hands-on projects and experimentation.
The speaker roster illustrates how broad the event has become. ETHDenver’s 2026 lineup included Ethereum co-founder Vitalik Buterin, Ethereum Foundation co-executive director Tomasz Stańczak, Consensys co-founder Joe Lubin, Base creator Jesse Pollak and executives and officials from companies and institutions including Circle, Robinhood, Ledger, the SEC and the White House.