DField SolutionsMérnöki stúdió · Budapest
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EU Digital Product Passport (DPP)

Related service Blockchain & smart contracts

DEFINITION

From 2026-2027, the EU requires Digital Product Passports for certain product categories: batteries (first), textiles, electronics, construction materials, furniture. Each product instance has a unique identifier (QR code or NFC) linking to online data: material composition, manufacturing location, carbon footprint, repair manual, recycling info. For Hungarian SMBs: if you manufacture or import into the EU, you're in scope. Implementation via blockchain (most secure) or centralised DB. Enterprise product implementation: €8-22k.

RELATED TERMS06
  • Smart contract→

    Code running on a blockchain (Solidity, Rust) that auto-executes an agreement. A single bug can cost nine figures · why we audit, fuzz, and threat-model before deploy.

  • Solidity→

    The primary language for EVM-compatible blockchains (Ethereum, Arbitrum, Base). Pascal-like syntax, low-level memory handling, TS-compatible toolchain (Foundry, Hardhat).

  • EVM (Ethereum Virtual Machine)→

    The shared execution environment across Ethereum and compatible chains (Arbitrum, Base, Polygon, Optimism). Writing a contract here means it runs on all of them.

  • L2 (Layer 2)→

    A secondary network (Arbitrum, Base, Optimism, zkSync) settling on Ethereum (L1) but much faster and cheaper. Rollups bring 10-100× lower gas.

  • Invariant test→

    A test that verifies a universal rule ('sum of user balances always equals total supply'). Feeds the contract random transaction sequences; the rule must hold in every state.

  • Fuzz test→

    Running millions of pseudo-random inputs through a function to find a combination that breaks it. Echidna or Foundry fuzz campaigns.

MENTIONED IN THE BLOG08