The Rollup Crypto Privacy Shifts, Sovereign's stack, and Reviewing The Signal with Sid Gandhi, Preston Evans, and Shiv Shankar
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Aug 9, 2025 Sid Gandhi, founder of Pay, focuses on private stablecoin transactions. Preston Evans, CTO at Sovereign Labs, discusses the innovative tech stack enabling rollups on any blockchain. Shiv Shankar, CEO of Boundless, dives into decentralized ZK proof marketplaces. The trio explores the delicate balance of privacy and transparency in crypto, the latest in payment technologies, and the future of digital privacy measures. From groundbreaking innovations to practical yield generation insights, their conversation is both engaging and informative, perfect for crypto enthusiasts!
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Close-Knit Team Survived Hard Weeks
- Robbie Rollup says the team is a very close-knit group and literally family.
- The team leaned on one another through heavy personal trials and expects to emerge stronger.
OLED Tap-To-Pay Discovery
- Sid Gandhi found a vendor building a payment card with a literal OLED screen embedded in it.
- The card harvests NFC energy to light the screen momentarily, so it needs no battery or charging.
Selective On-Chain Privacy Design
- Sid Gandhi explains Pay stores UTXO note data client-side so users can selectively disclose payment details.
- That design preserves privacy while enabling cryptographic proofs when selective disclosure is required.