Where can I find a list of all BTC dormant addresses since 2011, with a balance?
Or how/where can I start to build one like this?
Thank you for any references
You can take a look at this topic:
https://bitcointalk.org/index.php?topic=5064946.msg47684089#msg47684089There are several links to resources provided (and links to parser to do it yourself).
Another way would be to download and completely sync bitcoin core (with the
-txindex parameter), then write a small script which parses each transaction and checks whether the receiving address still has funds.
Using a parser from the above link probably is easier and faster tho.