Alice is paying for a service using Bitcoin micropayments. If she simply disconnects at some point without notifying Bob and stops sending micropayments, what can Bob do? (check all that apply)
Remember Alice sign payment transactions for every minute and sent to Bob, Bob can simply use the last one if Alice disconnects.
| Bob is out of luck. He doesn’t earn any Bitcoins and must pursue legal recourse | Wrong |
| Bob can redeem the maximum amount that Alice initially escrowed into a multisig address | Wrong |
| Bob can redeem the latest micropayment transaction that Alice sent in the last time period before disconnecting, which matches the length of service she received | Correct |
| Bob can refuse to sign the refund transaction, so both Alice and Bob will end up losing Bitcoins, which will sit in the multisig escrow forever | Wrong |
Remember Alice sign payment transactions for every minute and sent to Bob, Bob can simply use the last one if Alice disconnects.
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