If you’re building in Web3 and everything starts to feel like:
- MEV everywhere
- Front-running by default
- Sensitive logic exposed in calldata
…it might be time to look at Oasis Sapphire.
https://www.youtube.com/watch?v=LDLz06X_KNY
What Oasis actually is
- Oasis is a Layer 1 with a modular architecture
- Sapphire is an EVM-compatible ParaTime (smart contract runtime)
- You deploy Solidity contracts almost exactly like Ethereum
What makes it different
- Confidential EVM execution
- Contract state, inputs, and internal logic can be encrypted
- Data is only visible inside the secure runtime (TEE-backed)
This isn’t “privacy by obfuscation”. It’s enforced at execution level.
Why this matters for devs
- Protect MEV strategies (arbs, liquidations, auctions)
- Build sealed-bid auctions without commit–reveal hacks
- Hide sensitive parameters (fees, thresholds, allowlists)
- Reduce attack surface from calldata-based exploits
Dev experience
- Solidity + standard tooling (Foundry, Hardhat)
- Minimal changes to existing contracts
- No custom rollup infra, no sequencers to manage
- Deploy like an app, not like an infrastructure company
When Oasis makes sense
- DeFi protocols with strategy logic
- Account abstraction / paymaster logic
- Games with hidden state
- Governance or voting systems
- Any app where “everything public” is a liability
Trade-offs (being honest)
- Smaller ecosystem than Ethereum L2s
- You need to design with confidentiality in mind
- Not every app needs privacy, obviously.. but when you do, it’s hard to fake
If Ethereum L2s optimize for throughput, Oasis optimizes for who gets to see what. And that’s a powerful primitive most stacks still don’t have.
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