The best definition comes from their Instagram
, Rarible is a “multichain community-centric NFT marketplace.”
It fully supports three blockchains: Ethereum, Tezos, and Flow. A fourth, Polygon, is currently in Beta. This means that a Rarible wallet (to be linked) can hold NFTs from all those chains in what they call a “Multi-Wallet Profile.”
Comfortable as this seems, the service is even better because Rarible’s wallets are non-custodial (“non-custodial” means you are the only person that controls the wallet).
“You can switch between the supported blockchains under the “Explore” tab on Rarible.com. When you mint your (first) NFT, you need to choose which blockchain it’s on,” instructs the protocol’s FAQ
What does this mean for you as an artist? It means that you will be giving more options to your potential collectors, and that’s good. The downside is that your crypto assets (your “money”) would be as volatile as each token you get paid for your art.