Paul-Henry Kajfasz (@phklive) / X

Paul-Henry Kajfasz

2,323 posts

Paul-Henry Kajfasz

@phklive

Founder & CEO @unlink_xyz 🇫🇷🇺🇸 | @a16zcrypto & @paradigm & @ethereum fellow | Ex-Head of DevRel @0xMiden | Ex-pro soccer ⚽️ | Angeling in the ambitious 🚀

New York City

Joined February 2022

Pinned
Paul-Henry Kajfasz
@phklive
Feb 20
6 months of building in silence. Friday we launch. 100 spots. 36 hours. Come build with us. Time to ship.
Monad
@monad
Feb 20
Introducing the Ship Private. Ship Fast. hackathon, co-hosted by @unlink_xyz A 36-hour in-person hackathon to build private apps on Monad NYC · Feb 27 – Mar 1 · $30,000 in prizes Applications are now open: hackathon.unlink.xyz
17K
Paul-Henry Kajfasz
@phklive
Aug 11, 2025
Goodbye, today marks the end of an era. Grateful for an incredible 2 years with @bobbinth, @schmiddominik1, @azeemk, and the entire @0xMiden team - thank you ❤️ Next: going all-in on building my own company @unlink_xyz ! A thread 🧵
47K
Paul-Henry Kajfasz
@phklive
Aug 14, 2024
Life story 2 years ago - Playing pro soccer - COVID hit - Contract canceled - Went from 100 to 0 - No university degree - No programming experience 2 years later - @Starknet core dev - @ethereum fellow - @0xPolygonMiden Senior protocol engineer - @paradigm fellow
63K
Paul-Henry Kajfasz
@phklive
Apr 29, 2025
🚀 We raised $25M for @0xMiden! After 1+ year as Sr Protocol Engineer I'm thrilled to step into my new role as Lead Developer Relations! This rewards YEARS of incredible work by @bobbinth, @schmiddominik1 and our amazing team! Look at this dream team! How could we lose?! 👀👇
Miden
@0xMiden
Apr 29, 2025
Replying to @0xMiden and @0xPolygon
Our seed round was co-led by @a16zcrypto, @1kxnetwork, and @hack_vc.
23K
Paul-Henry Kajfasz
@phklive
Jul 5, 2024
Just landed in Brussels 🇧🇪 for EthCC Already cooking 🧑‍🍳 For all the friends ( and not yet friends ) in town, just shoot me a message let’s meet! ❤️
23K
Paul-Henry Kajfasz
@phklive
Aug 16, 2023
I am deeply proud to share that I have been selected to become an Ethereum Fellow in the EPF4 by the @ethereum Foundation! A dream come true enabling me to contribute to this incredible project that is Ethereum Decided to go big! Leave everything behind and commit 💯% more👇🧵
25K
Paul-Henry Kajfasz
@phklive
Jun 19, 2024
Just moved to Lisbon 🇵🇹 with moving in with my friend @real_philogy ! Can’t wait to make new friends so if you’re in Lisbon hit me up! 🤙 This year is going to be magnificent let’s get cooking 🧑‍🍳
13K
Paul-Henry Kajfasz
@phklive
Aug 7, 2024
Had an incredible time talking about @0xPolygonMiden at ZK Day by @houseofzk ! Find me this week in New York around SBC 🇺🇸 and let’s build the future 🚀
House of ZK
@HouseofZK
Aug 6, 2024
A huge thanks to Paul-Henry Kajfasz, Senior Protocol Engineer at @0xPolygonMiden, for leading the workshop 'Miden & the Future of Privacy-Preserving Protocols' 🤝 @phklive provided a thorough examination of the importance of ZK in privacy-preserving technologies and their future
2.5K
Paul-Henry Kajfasz
@phklive
Aug 28, 2025
First @unlink_xyz team offsite: > Core + angels + friends cooking > Walls plastered with whiteboards > Computers everywhere > Diet coke 6 packs (engineer gas) > Sleep (optional) > Bullish (🐂 to the max) Privacy.
11K
Paul-Henry Kajfasz
@phklive
May 31, 2025
Paris ⚽️🇫🇷 was my life for more than 10 years (9 -> 19 yo), today we win our first champions league 🏆 I dreamt of this moment so many times, thought I would be on the field… I’m not. But i’ll make things even greater, trust me! Believe in yourself 🚀 Paris je t’aime ❤️
00:23
Paris Saint-Germain
@PSG_English
May 31, 2025
EUROPEAN CHAMPIONS!! 🤩🏆
8.3K
Paul-Henry Kajfasz
@phklive
Mar 13, 2024
🎉 TODAY IS A BIG DAY MY FRIENDS 🎉 Not only do we have Dencun and blobs 🪼 on Ethereum Mainnet but I am also extremely proud to announce that today is my 100th day as a Senior Protocol Engineer at @0xPolygon! I have been focusing on the @0xPolygonMiden project imagined & led
12K
Paul-Henry Kajfasz
@phklive
May 29, 2023
People often believe, "YOU CAN ONLY CONTRIBUTE TO STARKNET IF YOU ARE A DEV!" My answer to that is a firm "NO!" Here's a thread on how ANYONE can contribute to the #StarkNet ecosystem. 🧵
00:00
26K
Paul-Henry Kajfasz
@phklive
Aug 14, 2024
Replying to @phklive
Countless 15 hour days, burning passion and discipline got me where I am today🔥 I aspire to become an inspiration to all the ones that come from "nothing" To all the ones with big dreams but limited resources Believe in yourself, work hard, stay disciplined, it is possible
4.5K
Paul-Henry Kajfasz
@phklive
Oct 27, 2025
Built a @EFDevcon (DevConnect Argentina) Privacy event list! Don't thank me, just build blockchain Privacy. (Comment or ping me if you know any others, let's add them!) Link down 👇
8.8K