“The promise of blockchain, fulfilled.”
Kostas Chalkias: The Visionary Cryptographer Powering Sui
Blockchain was meant to revolutionize security, scalability, and digital ownership, but for years, limitations in speed, usability, and accessibility held it back. Sui, the world’s fastest blockchain, is changing that.
Today’s guest, Kostas ‘Kryptos’ Chalkias, is a renowned Web3 cryptographer, white-hat hacker, and Co-Founder & Chief Cryptographer at Mysten Labs. His mission? Remove every barrier between Web2 and Web3, making blockchain as easy as using the internet.
Meet Kostas Chalkias: A Pioneer in Web3 Security & Innovation
With a career spanning Meta (Libra, Novi, WhatsApp security), R3 (Corda cryptography), and dozens of groundbreaking cryptographic innovations, Kostas is a driving force behind the next era of blockchain technology.
His work has shaped the foundations of enterprise blockchain security, and his cryptographic breakthroughs—including Zero-Knowledge Proofs (ZKPs) and proof-of-solvency mechanisms—are redefining what’s possible.
“We’ve built blockchain tech that works over SMS, radio signals, and even underwater—so even if the internet goes down, transactions can still happen.”
Sui: The Blockchain That Delivers on Crypto’s Original Promise
Built by Mysten Labs, Sui is engineered for unparalleled speed, efficiency, and scalability, featuring:
✅ 297,000 transactions per second
✅ Zero gas fees via sponsored transactions
✅ Ethereum signature verification for cross-chain compatibility
Sui’s Move smart contract language, originally developed at Meta, unlocks new levels of security and usability, making blockchain more accessible than ever before.
Beyond Crypto: Blockchain’s Role in the Future of the Internet
For Kostas, blockchain is about more than trading—it’s about redefining digital ownership, decentralizing trust, and enabling secure, censorship-resistant access to critical services.
Blockchain’s potential extends to:
- AI-powered DeFi strategies
- On-chain real-world assets (energy markets, tourism, governance)
- Time capsules for digital wills & secure AI-generated predictions
“The drive to unlock everything that Web3 enables is our north star.”
Why Kostas Chalkias Is a True Web3 Pioneer
Kostas has been at the forefront of crypto since Bitcoin’s earliest days, collaborating with Mike Hearn and indirectly Satoshi Nakamoto. His work has directly influenced some of the biggest developments in blockchain security and scalability.
With Mysten Labs, Sui, and relentless innovation, Kostas is ensuring that blockchain delivers on its original promise—seamless security, ownership, and accessibility for all.
“Honestly, I won’t be surprised at all if Mysten Labs, and anything it touches, surpasses what Apple is today.”


