Bitcoin micropayments require the use of: (check all that apply)
The key element here is that both Alice and Bob have to sign, and Alice need to time lock an escrow transaction.
| Multisignature transactions | Correct |
| Proof of burn | Wrong |
| Time-locked transactions | Correct |
| Pay-to-script-hash | Wrong |
The key element here is that both Alice and Bob have to sign, and Alice need to time lock an escrow transaction.
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