ISIC Card Emulation

[Pilgrimsmaster]

@anon3825968

seem to remember Amal mentioning a data retention guarantee of 50 years.

Likewise, and “potentially” up to 25 million years… as below
But I did not consider the fact that our young friend may be a highlander

@amal

Many of our chips have a 10 year data retention, but VivoKey chips like the Spark line and upcoming Apex line will have a 50 year data retention.

The next number is write count - how many times can a specific memory block be written to before it can no longer reliably represent the data written to it. Many of our chips have a 100,000 write count, but VivoKey chips have a higher write count - up to 500,000.

So, if a chip has a 10 year data retention and a 100,000 write count, that means you could write data to it once, wait 10 years, write to it again… even the same exact data to “refresh” the memory blocks… and now you have another 10 years and 99,999 writes left for that chip. In theory, if you wrote to your chip once every 10 years to keep the data fresh, your chip could last (in theory) for a million years… VivoKey chips up to 25 million years… in theory