Block capsule

1. 1] A block capsule is a time capsule that uses blockchain. The contents stay locked on the applicant's device, so if the server is breached, nobody, including the company, can open them.
2. 2] The storage period is up to 3 years.
3. 3] A block capsule certificate is issued so you can confirm that the promised date and contents have not changed.
4. 4] Files can be attached.
5. 5] The fee is 99,000원.