This guide will explain what the locking feature does, why a user may want to take such actions, and how a user may do so.
What exactly does locking a card do?
When a user locks a card, they set a number of days for the unlocking function. When a card is locked, it is prevented from performing specific actions on it or with it until the card has been unlocked. When a card is locked: it may not be sold, transferred, combined, or burned. A locked card may be played in any of our play modes, delegated to another account, or rented on the market. The card will continue to have these restrictions until it is unlocked.
Why should I lock my cards?
A user may want to lock their cards in an account as insurance if their private keys ever become compromised. A malicious actor who has compromised a user's keys to access their account would not be able to steal any of the cards if they are locked.
If the cards were not locked, the malicious actor could sell, burn, or combine them as soon as they gained access to an account. If the cards are locked, the malicious actor would have to start the card unlock process and wait for the cards to be unlocked before they would be able to sell, transfer, combine or burn the cards. Hopefully, the original owner, having set the unlock time to an appropriate timeframe, will see their cards being unlocked before they are available, cancel the unlocking of the cards and change their keys.
While locking a card, users must pick the number of days that they would like to set for the unlocking period, which will create this length of the delay before the card is available for transferring after having unlocked the card successfully, giving users time to attempt recovery of their account to retrieve any assets secured in this manner.
There are a few thoughts on the length of unlock time; they all depend on your situation. If you have cards that you plan to keep in an account for a long time, it might be most appropriate to put them on a 30-day cooldown. For other cards you may plan on selling or moving to another account soon, it might be more suitable for you to have a shorter unlock time; some users find seven days to be an excellent short-term unlock period. Each user should take the time to evaluate which unlock period makes the most sense for their investment style and their circumstances.
How do I lock my cards?
1. Click on any card you wish to have locked within your collection page, and you will arrive at the card's management page, where you should see a row of icons beside each of your owned copies of a card. You will also see a row of the same symbols repeated just above this window. You will want to click on the checkbox next to the copy you wish to lock to your account and then click on the icon resembling a padlock like the one in the upper-right of the screenshot provided.
2. After clicking the lock button, you should arrive at a window similar to the one in the image below asking how many days you would like to set for the card to take to unlock after the unlock transaction has been signed. (Users may only lock from one day and up to 30 days.
3. After entering the number of days you would like to define this card's unlocking period, click on the "OK" button.
4. You should be prompted to sign the transaction with your private key to confirm the transaction locking this card.
5. After confirming and receiving the successful transaction message, you should notice the card that was just locked has the padlock icon now highlighted beside its serial. This icon is an identifier for any locked cards within your collection.
How do I unlock my cards?
1. Click on any card in question within your collection page that you have a locked copy that you wish to have unlocked, and then click on the highlighted padlock icon shown next to the copy of the card that you want to start the unlocking process on.
2. After clicking the highlighted padlock icon, click on the "OK" button to begin the unlock process for your select card.
3. You will be prompted by a window asking you to sign the transaction with the appropriate private key to confirm this action.
4. After the transaction has been signed with the correct private key and successfully confirmed, the padlock is highlighted but in a different color. If you hover over the icon, you should see the information showing how many days total this card has left before it is successfully unlocked.
This concludes the guide explaining both the process of locking and unlocking your cards.