Contract features
Learn how ili.ad's DCA initiative works on a technical and practical level.
Explore how ili.ad leverages blockchain to secure authenticity and drive lasting value. You’ll find concise guides on installation and architecture, comprehensive API reference material, and the complete smart-contract code.
When I started ili.ad, I initially tried making everything myself in-house. I quickly learned that operating as a one-man studio in the most expensive city in North America is barely sustainable. My approach also reflects my background as an architect, where collaboration and delegation are integral to creating complex projects. Delegation introduces challenges, particularly ensuring each product meets my precise specifications and standards. Minting one of these digital certificates explicitly confirms my approval, verifying the authenticity and quality of the object. Historically, architects have marked their work with recognizable signatures, like Frank Lloyd Wright's red tiles or keystones bearing the marks of their creators. This digital certificate serves as a contemporary equivalent.
This Digital Certificate of Authenticity (DCA) permanently establishes the authenticity, provenance, and ownership of your purchased art or design object, securely recorded on the Ethereum blockchain. In simple terms, this digital certificate acts as a tamper-proof proof of authenticity—like a digital fingerprint or a permanent record—ensuring the object you purchased is genuinely produced, limited, and traceable to its origin.
When you purchase an object with this digital certificate, you receive:
- Immutable Proof of Authenticity: A permanent, blockchain-backed record proving your object is authentic and officially recognized by the creator or issuer.
- Secure Provenance: The full, verifiable history of the object’s ownership and origin remains permanently accessible, increasing its value and credibility over time.
- Transparent Ownership: Your ownership of the certificate—and by extension, the authentic object—is clearly documented and securely protected.
- Controlled Transferability: Certificates can be securely transferred or locked to protect authenticity and provenance, preventing unauthorized or unintended transfers.
- Permanence and Longevity: A built-in failover mechanism ensures that your digital certificate remains valid and accessible long-term, even in the unlikely event that the original hosting platform changes.
Unlike common NFTs, which primarily trade speculative digital assets, this DCA establishes a permanent, trustworthy connection between a physical art or design object and its digital record of authenticity and provenance. The goal is not speculative trading, but credibility, trust, and enduring value. We leverage the flexible tooling of the ERC-721 protocol, widely used for NFTs, to serve a distinctly different purpose. We've removed any financial incentive for trading DCAs independently of their physical objects by contractually requiring a 100% commission. While you can easily view and manage certificates using platforms like OpenSea and store them in wallets such as MetaMask or other NFT-compatible wallets, our intention is clear: we fully support trading the physical object, but the digital certificate itself is not meant to take on an independent speculative life: sell the object for value; transfer the certificate as a side-car.
Key features
- Minting (issuer can create new, verified certificates)
- Burning (issuer can revoke or replace lost or compromised certificates)
- Locking Tokens (issuer can control transferability to protect authenticity)
- Dynamic URI Failover (ensuring long-term availability of certificate metadata)
Design & intent (Why Blockchain?)
This contract provides something physical certificates cannot—complete transparency, immutability, and verifiable authenticity on a public blockchain. It's a simple but sophisticated solution, making your investment more secure, credible, and valuable.