Like any backup, the GitHub Archive Program is also intended for currently unforeseeable futures as well.
GitHub stores its data on specialized ultra-durable film, which is coated in iron oxide powder.
Remarkably, this film will last for 1,000 years.
Each repository will be packaged as a single TAR file, it adds.
For greater data density and integrity, most of the data will be stored QR-encoded.
A human-readable index and guide will itemize the location of each repository and explain how to recover the data.
source: www.techworm.net