As for the noseprint reader, well, it was found to be a fake product that (shockingly) didn't use a blockchain at all. The company had also promised to build "theme parks for pets", but had not leased any of the sites it had identified.
Ponzi scheme promising a blockchain app to identify dogs by their nose-prints scams investors out of $127 million
A company that promised an app that could identify dogs by their nose-prints — built on the blockchain, of course — has been alleged by South Korean police to be "a typical Ponzi scheme" that lured investors with promises of up to 150% returns in 100 days. The company raised around ₩166.4 billion (~$127 million) from approximately 22,000 people. The victims, according to Korean police, are mostly "in their 60s or older with no expertise in cryptocurrencies".