A blockchain-based traceable certification system

Abstract

In recent years, product records become more common to merchandize sold in retail stores, but the current product record system used today can’t assure product’s quality after products were transported through the whole supply chain. During transportation, merchandise may be damaged accidentally or condition changed. Those events do not get recorded because records are predominantly focused by manufacturers. Also in second hand market, product record may be tampered or verification is weak. Nonexperiences buyers can’t distinguish counterfeit because records are not trustworthy and outdated. By using the concept borrowed from Bitcon, the advantage of the blockchain can be applied to the product record system. Because of the characteristics of the blockchain such as: decentralization, openness, and immutability, which can improve the system. To achieve the goal, ownership of products is introduced and smart contract is also embedded to further enhance the product record system.