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I'd have to do more research on that and find out exact technical complexities (especially considering hive has no L1 smart contracts). HTLC cross chain swaps using VSC (hooked in with HIVE) is a well understood problem with known advantages and disadvantages

I think a bridge and some DEX listings would be a good starting point.

For starters we are building a Bitcoin to HIVE bridge using @vsc.network. That'll wrap HIVE into smart contracts where a DEX can trade HBD/HIVE for wBTC