Chris Maddern
@chrismaddern
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CTO @opensea. The future is onchain. Previously built @rally_xyz, @button, @venmo, @linksdao, @corkbin. Made in 🇬🇧. I ❤🍷. All Tweets my own
New York City
Joined March 2008
@chrismaddern Everything is unit of energy per output of intelligence. Everything.... The petrodollar was the currency. It is shifting now. BTC will be a key part because it is energy. Same with other crypto. AI is upstream. It is the higher order intelligence per unit of compute.
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Your Jeep deserves more than just a traditional lift kit — it deserves an AccuAir Dynamic Lift Kit.
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Q: why isn’t energy the universal currency for Earth? best answers seem to be… * hard & expensive to store * insufficient historic ability to exchange into other forms of value * some segments of the world population not directly exposed in 2025… compute = intelligence
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we're expanding our marketing team at OpenSea and looking for a Social Media Lead. this person would have an entrepreneural charter and strategic ownership over our social channels. the right candidate needs to have deep cultural experience within our space and the ability to
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How did illegal vapes from China flood our neighborhoods and schools?
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this was an amazing, independently directed piece of AI-built work by @jalagar_eth let us know how we can make this better and keep pushing on creator experience on @opensea
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small update for creators - a new "created" default experience that visually shows the collections & work 😍
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love when we can help creators to be more successful with onchain work 🙏 thanks for your patience too
Special thanks to @0xdiid and @chrismaddern for helping sort out the honorary collection tokens - a few of them had some issues showing up, but they are back in action now! 🙏
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it's insane how much you can get done in just a couple hours of being LOCKED IN
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Designed as an FPP-first experience, PUBG: Black Budget is a tactical extraction shooter built around tension, survival, and the unknown.
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spot-on UX advice from @justinbieber
If I hit this dictation button after sending a text and it beeps and stops my music one more time, I’m gonna find everyone at apple and put them in a rear naked choke hold Even if I turn off dictation I somehow hit the voice note thing The send button should not have multiple
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the fact that we've arrived at robot dogs reimagining reality through the lens of art history while pooping is simultaneously the most unhinged and prescient statement about where frontier tech x art is headed honored for @opensea to have partnered on this exhibition. we’re
✨POOP EXPLAINED ✨ the dogs are continuously taking pictures and ranking those pictures to find the most interesting ones. When it comes time to poop they are reimagined using AI according to each dog’s personality / worldview. (Picasso, Warhol, Beeple, Elon shown here) I am
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has anyone done a 1 hour ai hackathon? seems quite feasible…
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The 2025 Limited First Edition Unity Bag has sold out within one week of launch. We are humbled and moved by the overwhelming response and love we have received. The Unity Bag was created as a quiet tribute to Fostering the Future and as a message of hope. It is the greatest
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market cap of bitcoin vs gold we are going much, much higher
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it’s awesome to see people building on seadrop & helping fully onchain creators access distribution! congrats to the @0xCarve team on a big launch!
🚀 Big update from Carve. You can now deploy fully on-chain NFT collections that mint directly on @OpenSea using SeaDrop. Fully on-chain art → OpenSea-native minting.
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AI is now independently contributing code at OpenSea, reviewed by dedicated Agents — and it’s mind-blowing 🤯🤯🤯 The new generation of frontier models have evolved from “junior helpers” to independent contributors in scaled codebases We’re on a journey to every human builder
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thanks for the assist, @zerion 🙏👏
When @opensea was building OS2, they needed token positions data across all chains—fast. Instead of months of indexing work, they integrated Zerion API. "Zerion's API got us to market 3 months faster than an in-house build (an eternity in crypto)" — @chrismaddern, CTO at
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She didn’t get here overnight, and she didn’t get here alone. In Episode 1 of Amplified in partnership with @nationwide, aerospace trailblazer @aishabowe reflects on learning how to dream, participating in our economy, and redefining what's possible.
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do you care what chain your funds are on if you can spend them anywhere?
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great post & solid strategy a new flow built on defi + mobile if brings together their experience creating products for real users with crypto thrilled to see more folks bringing mobile onchain gl
we fucked up. we built apps with the world’s most-loved brands. protocols with millions of users onboarded and billions in volume. but our mistake was simple: not enough of the value flowed to the believers who made it possible. we’re fixing that now. not only have we started
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AI is now independently contributing code at OpenSea, reviewed by dedicated Agents — and it’s mind-blowing 🤯🤯🤯 The new generation of frontier models have evolved from “junior helpers” to independent contributors in scaled codebases We’re on a journey to every human builder
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