42 Platform as a service (paas) featuring computer software platforms for the purpose of product serialization, authentication, tracing or tracking goods of any kind, distribution track-and-trace, and supply chain management; Platform as a service (paas) featuring computer software for accessing, reading, and tracking information in the field of jewelry on a blockchain; Platform as a service (paas) featuring computer software platforms for retail, online marketplace, and e-commerce monitoring, and consumer engagement; Platform as a service (paas) featuring computer software platforms for protecting against counterfeiting, tampering, and diversion, to ensure the integrity of genuine products throughout their lifecycle; authentication services, namely, authentication of consumer goods, gems, precious metals and their alloys, precious and semi-precious stones, critical minerals, jewelry, luxury goods, medical technology being medical devices, transportation being vehicle components, semiconductors, defense electronics, and electronic security devices using blockchain technology; Platform as a service (paas) featuring computer software platforms for scanning, registering, tracking and authenticating solid objects; Identification and authentication of data in the field of consumer goods, gems, precious metals and their alloys, precious and semi-precious stones, critical minerals using blockchain technology