what if someone wants to spend/trade Bitcoin in a store or exchange for money or goods?What do they need to show to prove they have UTXO's ?Do they show address,the Txid,Or the QRCode?
what if someone wants to spend/trade Bitcoin in a store or exchange for money or goods?What do they need to show to prove they have UTXO's ?Do they show address,the Txid,Or the QRCode?
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