JQQQ represents an issuer-sponsored model where Janus Henderson manages the fund, Centrifuge supplies blockchain infrastructure, and Nasdaq officially licenses the underlying index.

From the articleJanus Henderson Launches Onchain Nasdaq-100 Fund With Centrifuge, Exclusively on Stellar - UnchainedAlso in Janus Henderson launches first Nasdaq-licensed tokenized fund, Stellar Gains Nasdaq-100 Fund as Tokenization Expands, Nasdaq-100 Enters Tokenized Fund Era With Janus Henderson JQQQ