"IT ENABLES EACH AND EVERY CUSTOMER DOCUMENT, FROM THE FIRST VERSION TO THE LATEST, TO BE STORED IN A SAFE AND SECURE WAY AND TO BE ACCESSIBLE AT ANY TIME FROM ANYWHERE."

"The Solution:
Hitachi’s Durable Medium is a combination of WORM (Write Once, Read Many) storage and a web application for customers developed by Hitachi in 2016. It enables each and every customer document, from the first version to the latest, to be stored in a safe and secure way and to be accessible at any time from anywhere. It is impossible to modify these documents once they have been issued, so it keeps a record of every customer’s file from its original version.
This technology has proved to be vital, with Santander Bank in Poland rolling it out less than three months after partnering with Hitachi, and Bank Pekao S.A. reducing paper letters to customers by more than 1.5 million in its first year of use.
Other high-profile customers, such as Poland’s clearing house KIR and the cooperative banking group service provider CRUZ, have also adopted this technology, which is a clear testament to its quality, functionality and security."

https://social-innovation.hitachi/en/case_studies/durable_me...