
jaosef.eth
@jaosef
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Tweeting about, zero-knowledge, privacy, network design and MEV. President, Co-founder & Product @aztecnetwork
London, England
Joined June 2013
@aztecnetwork — the last rollup
“Today’s rollups are built to be first. We should design to be last, to stand the test of time” ~ @jaosef
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airdrops are dumb - tanks your chart - inhibits price discovery - does zero for adoption - not connected to a funnel or desired metric/behavior - lazy alignment most airdrops come before there is any usable product, so ppl get their free magic internet money, sell it and
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◈ 7 Years ago, I created Aztec's original logo. It was a play on zero knowledge. An outer privacy shield wrapping secret data. Since then, @Zac_Aztec and I have poured everything into building programmable privacy. Today, our new brand reflects the scale of our ambition.
1/5 The next Renaissance is here. An era when code, culture and capital combine to unleash unprecedented adoption.
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New Base Eng Blog just dropped 🙌 benchmarking Noir (@aztecnetwork), SnarkJS, Rapidsnark, and Gnark on passkey sig verification Spoiler: Noir hands down wins in speed. Read more on just by how much 👀
excited to share results from some ZKP benchmarking i’ve been working on with @leanthebean and @jowparks! we wanted to see how popular frameworks perform when proving passkey signatures. such proofs enable exciting use cases like privacy-preserving auth and payments. check out
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How many bips is a lack of privacy costing you….
@jon_charb How many bips would you pay for it?
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Here's how I would write a job description in 2025: 1) We're not going to tell you what to do There's no playbook. If we knew which buttons to press and in which specific order, we'd build an agent or send the work offshore. You're here because we have NO IDEA what to do,
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Give this a listen to hear about all things Noir, how we got here, apps that need privacy and the Aztec Testnet. Thanks for having me on, it was the most fun relaxed podcast I have done. 😃
What if the real barrier to mass adoption isn’t scalability - but the total absence of privacy? @aztecnetwork co-founder Joe Andrews joined us at NoirCon 2 to trace the seven-year journey from early DeFi ambitions to building a fully decentralized, privacy-preserving L2. In
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Is a rollup only stage 2 if it inherits its censorship resistance from Ethereum? Can a stage 2 rollup inherit censorship resistance from a decentralised & permissionless L2 staking set that requires a broken honesty assumption to censor? @l2beat @antoonip @VitalikButerin
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We just shipped the last major update to testnet before audits start and we turn our attention to mainnet. This testnet is permissionless — create a zero-knowledge proof of passport to join. This testnet is adversarial — nodes can slash misbehaving nodes. In the style of
1/5 Aztec just entered a critical phase: Adversarial Testnet. The network is designed to be private and decentralized from day one. This phase is a key step toward launching the first fully decentralized privacy-preserving L2 network on Ethereum.
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We love backronyms at Aztec. Fun fact. No one actually knows @Zac_Aztec ‘s real name. We just call him Zac because it stands for: Zero knowledge Aztec Creator 🤯
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Privacy for all the chains.
Some weekend reading: if you ever wanted to know some of the coolest primitives within Aztec but aren't a cryptographer or feel too intimidated to read through our docs. Additionally talks about how you could bridge from Arbitrum to @aztecnetwork without on Arbitrum leaking dest
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I have a small micro-needle tattoo from https://t.co/mzVdGjAzbT on my arm. It's a smiley face :) The tattoo comes as a patch — stick it on your arm and 10 mins later, you have a painless but permanent tattoo. If I get a batch of Aztec tattoo patches made, who wants one?
cipherx.tech
Be your own tattoo artists and create custom tattoos with our easy-to-use online design tool. With our new microneedle technology, design and export a unique patch to apply safely at home.
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Every modern passport and ID card has a digital signature and private key in it. 121 counties and counting. This signature is signed by the issuing government and can be used to prove you have a real valid passport. The passport chip even contains a photo signed by the
1/3 Age verification online usually means giving up personal info, but it doesn’t have to. @ZKPassport uses zero-knowledge proofs to let users prove they're over a certain age without revealing their birthdate, name, or any personal data. https://t.co/drEHgI9hQK
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Private KYC verification is here. Using this flow you can verify you have done KYC with Coinbase anywhere. On @base, on @ethereum or on @aztecnetwork . All in 41 lines of Noir code and proven in seconds. Privacy is coming.
Cool flow using @aztecnetwork’s Noir to generate proofs of your @coinbase attestations.
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