# Quiz 27

#### Let's apply what you have learned so far to a specific scenario. Choose the most correct response (choose ALL that apply).

You are a developer working on a supply chain application that uses BSV to track shipments. A shipment transaction has been recorded on the BSV ledger, but the recipient claims they cannot access the shipment details. Upon investigation, you find that the unlocking script provided by the recipient is not producing a valid result when combined with the locking script of the transaction output. What is the best course of action to resolve this issue?<br>

* [x] Verify that the recipient has the correct private key corresponding to the public key used in the locking script.
* [x] Check if the locking script conditions were correctly set during the transaction creation.
* [ ] Advise the recipient to use a different wallet application to access the transaction.
* [ ] Modify the transaction on the blockchain to correct the issue.

**Notes to Learners**

In Bitcoin SV, the locking script defines the conditions for spending the funds, and the unlocking script must satisfy these conditions. If the unlocking script fails, it is likely due to an incorrect private key or improperly set locking script conditions. Transactions on the blockchain are immutable, so modifying them is not an option. Ensuring the recipient has the correct private key and verifying the locking script are the appropriate steps to resolve the issue.

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To learn more about it, you can follow the course [BSV and Digital Signatures](https://bsvblockchain.360learning.com/course/play/68de2a96a0926cd44a3f378d)


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