Wrapped Bitcoin is a project to represent bitcoin on the Ethereum network.
It is sold in association with Bitcoin on Ethereum-based decentralized crypto exchanges such as IDEX.
Obviously, I bought 1 Wrapped Bitcoin for testing purposes. Each WBTC is also 1: 1 for transactions with Bitcoin. I've experienced this. It really is.
Currently, WBTC is at the top of DeFi currencies.
You can buy WBTC from Bitfinex platform, one of the crypto currency exchanges. I think it will be published in many exchanges soon.