Bromberg describes starting web design and marketing projects in high school, then joining Stanford’s Bitcoin Group after taking a practical entrepreneurship class. He left Stanford in 2014 to build Sidewire, a platform for public conversations among political experts. Although the platform attracted about 1,000 prominent contributors, it struggled to bring readers back and shut down in 2017.
A Conversation About Crypto-currencies and ICOs
Speaker
Andy Bromberg, president and co-founder of CoinList, discusses his startup experience and cryptocurrency, token sales, and ICOs with a Y Combinator host at Startup School.
Bromberg says he and co-founder Tucker raised a seed round, largely from angels, and found that aligned, supportive investors mattered during both good and difficult periods. Sidewire tried subscriptions and enterprise offerings, but the alternatives did not appear likely to become venture-scale businesses. He links retention challenges to the effort required to read longer discussions and build a news habit.
After deciding in 2014 that the future of cryptocurrencies was too uncertain, Bromberg returned to crypto in 2017 and helped build CoinList with Protocol Labs and AngelList. He describes a token as a scarce digital asset, and compares blockchain infrastructure to the internet: a broad foundation for different applications that need to be evaluated on their own terms. Using Filecoin, he explains a decentralized storage market where customers pay storage providers, providers stake tokens, and verifiers check that files are stored correctly.
Bromberg says token sales made sense for a small number of startups at the time. CoinList had supported five sales after receiving more than 2,500 inquiries, many rejected as scams, frauds, or poor fits; he estimates ICOs had raised about $15 billion in 2018, while warning that the young market lacked reliable diligence data. He argues tokens are most useful when a product depends on parties transacting without trusting a central intermediary, and explains that CoinList handles sale logistics such as compliance and payments.
Bromberg contrasts token holders, who generally have no formal relationship with the issuing company, with equity investors, whose interests are more directly tied to the company. He recommends looking for investor alignment, a constructive working relationship, and useful support, and doing reference checks. In the Q&A, he says token networks are difficult to build and govern, and predicts relatively few blockchains but many tokens as infrastructure develops.
Takeaways
- Test whether users return and form a habit; a strong supply of content alone may not create demand.
- Choose investors whose goals match yours, assess how you work together, and check references before closing a deal.
- Treat a token sale as a fit for a specific network problem, not as a default fundraising option.
- Account for how token holders’ incentives and relationship to the company differ from equity investors’.
- Expect decentralized networks to require careful incentive design, verification, and governance.
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What was claimed 16
- role atAndy Bromberg is president at CoinList
“the president and co-founder of CoinList”
YouTube Verified2 sources· Talk
- builtProtocol Labs built Filecoin
“build Filecoin”
0:48inIPFS, CoinList, and the Filecoin ICOYouTube Verified3 sources· Talk
- foundedAndy Bromberg founded Stanford Bitcoin Group
“ended up founding the Stanford Bitcoin Group back in 2012 or 2013”
YouTube Unverified1 source· Talk
- foundedAndy Bromberg founded Sidewire
“I left school in 2014 to start the company”
YouTube Unverified1 source· Talk
- featureSidewire: Let political experts chat publicly about the news while others read and engage
“a platform where experts in politics could chat publicly about the news of the day”
YouTube Unverified1 source· Talk
- metricSidewire: Wound down in mid-2017
“ultimately wound it down in mid-2017”
YouTube Unverified1 source· Talk
- metricSidewire: About a thousand experts, including senators, presidential candidates, reporters, analysts, and staffers
“about a thousand people—senators, presidential candidates, reporters, analysts, staffers”
YouTube Unverified1 source· Talk
- foundedcreated as a collaboration with
“It was created as a collaboration between Protocol Labs ... and AngelList”
YouTube Unverified1 source· Talk





