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Lefteris Karapetsas
67.7K posts
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Lefteris Karapetsas
@LefterisJP
Founder of @rotkiapp🐦, the portfolio tracker that protects your privacy. #Berlin. University of Tokyo graduate. Marathon runner. #ethereum developer. #birding
Berlin, Germany
rotki.com
Joined June 2009
809
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72.5K
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  • user avatar
    Lefteris Karapetsas
    @LefterisJP
    Nov 19, 2022
    I've only used mastodon for a week. My account just got suspended for: "Being a capitalist" I am not sure what that means. But I guess I can fix it by sending some moneros to the server owner? The Fediverse is not very welcoming.
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    Lefteris Karapetsas
    @LefterisJP
    Nov 30, 2022
    A man who stole $10B, @SBF_FTX just got interviewed, portrayed almost as a victim and got an applause at the end Still free and fine. Aaron Swartz, who downloaded academic journals to share with the world got $1m in fines and 35 yrs in prison. This lead him to take his own life
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    Lefteris Karapetsas
    @LefterisJP
    Oct 20, 2025
    AWS is down and then the internet stops working. But the blockchain, it never goe ... wait a minute. Scratch that. This sector is a joke. Everyone preaching decentralization and censorship resistance but in reality ... it's all 100% reliant on the cloud.
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    1.1M
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    Lefteris Karapetsas
    @LefterisJP
    Jul 30, 2021
    Six years ago, on 30/07/2015, we launched the #ethereum network from a small office in Waldermarstr. #Berlin. Happy #ethday! Onwards and upwards🚀
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    Lefteris Karapetsas
    @LefterisJP
    Jul 30, 2022
    ⌛️7 years ago on 30/07/2015, we launched #ethereum from an office in #Berlin Waldemarstraße 37A. 🦄What was started by this ragtag band of devs from around the world has now grown to a network securing more than $250 billions in value. 🎂Happy birthday ethereum!
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    Lefteris Karapetsas
    @LefterisJP
    Jul 30, 2023
    It was 8 years ago today, we launched #ethereum from a small office in Waldemarstraße 37A in Berlin What a journey its been since then? It became the most widely used cryptocurrency network, switched to PoS and spawned many alt-L1s and L2s 🦄Excited for what the future brings!
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    312K
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    Lefteris Karapetsas
    @LefterisJP
    Sep 20, 2023
    Replying to @RealTimeWWII
    What's even more interesting is he did not know how to swim
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    58K
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    Lefteris Karapetsas
    @LefterisJP
    Jul 30, 2025
    It was this day 10 years ago, 30th of July 2015, that we changed the world forever. We were a small team of hackers in an office in Kreuzberg in Berlin and we had just launched the @ethereum network. The rest is history. Looking back at the last 10 years, I am excited about
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    193K
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    Lefteris Karapetsas
    @LefterisJP
    Nov 22, 2022
    Our brother @alex_pertsev has been in prison for 103 days. Today a Dutch court, labeling him a flight risk keeps denying him a fair trial and asked to be kept in prison until 2023/02/20. Another 90 days. In total 193 days in prison without a trial for ... writing #opensource
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    Lefteris Karapetsas
    @LefterisJP
    Apr 14, 2025
    I’m tired. Everything I love about software: craft, care, community is being gutted. AI slop PRs for airdrops. Fake activity to juice metrics for retro funding. DAO politics and governance favors. OSS reduced to a game of farming points and politics. Crypto didn’t liberate
    303K
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    Lefteris Karapetsas
    @LefterisJP
    Mar 23, 2024
    Replying to @daniel_nguyenx
    "I got questioned why I did that" I would have fired immediately. Trust is everything.
    100K
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    Lefteris Karapetsas
    @LefterisJP
    Nov 30, 2022
    Replying to @LefterisJP and @SBF_FTX
    This is the justice system of the modern western world, ladies and gentlemen. Burn it all to the ground.
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    Lefteris Karapetsas
    @LefterisJP
    Dec 14, 2023
    A really serious issue is currently unfolding across most hosted crypto frontends. There is a supply attack on a popular connector, the @Ledger connect-kit. It has been infected with a drainer, which you can confirm by deobfuscating the code. Be extra vigilant!
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    745K
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    Lefteris Karapetsas
    @LefterisJP
    Mar 28, 2024
    I don't understand the American justice system. Steal ~10$B and cause people to kill themselves -> 25 years Download academic journals from MIT to share with the world -> 2 counts of wire fraud and eleven violations of the CFAA (~max sentence 35 years). Remember Aaron Swartz
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    60K

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