It’s only a proof-of-concept at this point, but there’s now a model for locking BTC on the Bitcoin blockchain and minting PolkaBTC on Polkadot.
Source: https://www.coindesk.com/polkadot-is-latest-blockchain-to-explore-redeemable-bitcoin-tokens
Source: https://www.coindesk.com/polkadot-is-latest-blockchain-to-explore-redeemable-bitcoin-tokens
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