IYK, a web3 startup that provides tools to brands like Adidas and Johnnie Walker to help bridge the physical and digital worlds, has raised $16.8 million in seed funding led by A16z Crypto.

Other investors in the round included 1kx, Collab Currency, Lattice Capital and gmoney, IYK said Thursday. IYK was an alumnus of a16z Crypto Startup School, the venture capital giant's accelerator program that typically invests $500,000 in participating startups in exchange for 7% equity, according to its website.

It is unclear when IYK began raising for the seed round and when the firm closed it; co-founder Ryan Ouyang declined to comment. He also declined to comment on the structure of the seed round and valuation.

What is IYK?

IYK lets brands, musicians and creators build digi-physical …