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Smart contracts you can mathematically trust.

Developers building on Cardano still struggle to prove their smart contracts are secure and correct. Critical tooling is often missing, outdated, or hard to use, pushing teams toward costly audits or low-assurance shortcuts. Cardano High Assurance closes that gap with a suite of standalone, ready-to-use tools that build security, correctness, and trust into every contract.

Specialist Partners

As part of our commitment to the community, the Cardano High Assurance team is partnering with Harmonic Labs, Lantr, Midgard Labs, No.Witness Labs, SAIB, and TxPipe to deliver the next generation of automated formal verification for Cardano smart contracts. Together we advance the core verification engine and proof reconstruction, improve the developer experience, and integrate seamlessly into the environments developers already use, making high assurance a cost-effective choice for critical DApps.

What High Assurance Is

High assurance means ensuring that software behaves exactly as intended, rather than assuming it does. Instead of relying on manual review alone, it applies rigorous methods such as formal verification, static analysis, and property-based testing to catch flaws before code ever reaches the chain. Cardano High Assurance brings these methods together as standalone tools, designed to work across languages rather than locking teams into one stack.

Why It Matters

Smart contract exploits are expensive and usually irreversible. In 2025 alone, blockchain attacks caused roughly 2.9 billion dollars in losses, up 46 percent on the prior year, with contract vulnerabilities among the leading attack vectors. As AI makes finding bugs cheaper for attackers, testing and audits cannot keep pace. Mathematical proof is the one defense that does not weaken as attacks grow more sophisticated, and Cardano High Assurance puts it within reach of every team, not just the well-funded.

What High Assurance Delivers

The suite delivers concrete, ready-to-use tools

The formal verification tool mathematically proves a contract meets its specification and has already verified properties on production DApps like Djed and USDCx

The Plinth static analyzer flags vulnerabilities without running code, property-based testing surfaces hidden edge cases, and the transaction monitoring system watches on-chain activity in real time.

A container-based development environment spins up preconfigured, ready in seconds

Universal annotation language ties specifications together across Plinth, Aiken, Pebble, and any other smart contract language

What’s live/ what’s next

The formal verification engine is already live and proven on mainnet DApps, alongside early open-source releases of the static analyzer, property-based testing, and monitoring tools. Through 2026 and into 2027, the work expands to support Aiken, Pebble, Scalus, and Futura, adds DApp-scale verification,an equivalence checker, and ships a Visual Studio Code extension for everyday developers.

Roadmap

Milestone-gated funding through Intersect. Audit reports and proofs published in full.

Q3 2026

Unified toolkit takes shape – CBDE architecture and full tool inventory; Blaster integrates with Plinth

Q4 2026

First tools ship – CBDE pre-release, equivalence checker, and VS Code extension V1

Q1 2027

Verification reaches four languages — Aiken, Pebble, Scalus, and Futura; CBDE community beta opens

Q2 2027

Full toolkit, generally available — CBDE V1.0, DApp-scale proofs, Common Vulnerability Library, and VS Code V2