See also How do I redeem my Ada? for more information on what to do with certificates in different situations
Pre-Sale - How do I get certificates?
Certificates were issued to the people who participated the Ada pre-sale which was held between October 2015 and January 2017. IOHK has no plans for issuing more certificates.
Ada Redemption - Was I Force vended or Paper vended?
People who purchased Ada at a pre-sale were issued a certificate at the Ada Voucher Vending Machine (AVVM) during the pre-sale period. Customers obtained certificates at this time. They were issued a certificate and an encrypted certificate and a 9 word passphrase required to decrypt the certificate. If a certificate is lost, an encrypted certificate and 9 word passphrase are required to redeem Ada.
If the Ada exchange was unable to contact you via email or phone, and/or you did not go through the AVVM, then you were probably force vended on March 25th, 2017. In addition, some users who were vended through the AVVM may have been force vended as well because of technical issues. In this case, your AVVM certificate(s) will not be redeemed, you must use the ones received in your email. Note that all force vended emails were sent from firstname.lastname@example.org
An E-mail titled Your Ada Certificate / Ada 証明書 has been sent to customers who were not issued certificates via AVVM within the specified period. An encrypted certificate is attached to this email. Customers using this encrypted certificate need a receipt. All force vended customers who received receipt by email. The subject of this email is ET301. The receipt includes some information like Ada passcode, Ada amount etc... - 5 - Customers should upload the encrypted certificate to Daedalus, and enter their passcode and Ada amount. The redemption key will appear when the customer has submitted all required information.
During force vending, some emails failed to deliver. In this case, the certificate was mailed via certified mail. The redemption key is encrypted, so you must use the ‘Paper vend redemption’ tab to redeem.
Ada Redemption - I cannot redeem my encrypted certificate via Regular/Forced redemption.
Please note that if the wallet you are trying to redeem to is protected by a password, you will have to enter your wallet's password in the ‘Password’ field for the redemption. The Mnemonics (9-word passphrase) for the encrypted certificate should be entered in the ‘Passphrase to Decrypt the Ada Voucher Certificate’ field. Also note that if you are trying to redeem a non-encrypted certificate, you will only need to enter your wallet's password in the Password field.
Ada Redemption - I cannot redeem my paper vend certificate.
Unfortunately, the font used on the certificate makes it difficult to distinguish between 0 (zero) and O (capital o); and I (capital i) and l (lowercase L). You may need to try different combinations of 0, O, l and I to redeem your paper vend certificate.
Ada Redemption - Force vended: How do I match the Ada code from my receipt to a certificate if I have multiple certificates?
The only way to decrypt the force vended certificates is with the secret information sent to you at your receipt. You will need to try all combinations of receipt information to certificate to decrypt.
Ada Redemption - How do I decrypt my encrypted certificate?
You can drag and drop your decrypted or encrypted certificate into the Daedalus redemption box. To decrypt, enter the 9-word passphrase given to you during vending.