The V3 network is currently in the Beta Pioneer 1. During this stage, developers can upload and download data to/from the nodes of the V3 Beta network, and they can share files with macaroons. Interested users and developers who want to upload their files can sign up for an invite on the waitlist for users and developers. We are currently sending out the invites from this developer waitlist in small batches.
Storage Node Operators (SNOs) who want to share their storage space on the V3 network can also now sign up on this SNO waitlist to be invited to participate; currently Storage Node Operators can join the network only by invite in order to receive an authorization token to sign their node's identity.
SNOs can read our blog Sharing Storage Space for Fun and Profit for information about successfully running storagenode and the blog: So You’re Ready for Your First Payday as a Storage Node Operator to understand the payout calculation method.