I just remembered one more: Cryptonite (XCN), from late 2014 or early 2015. The blockchain is alive, it has still a live website, but it was delisted from almost all exchanges.
The USP of this coin is that it was the first coin which applied the so called "mini blockchain scheme". This allows to store only a relatively small part of the blockchain to validate transactions. A very similar approach has been followed, much later, by Kaspa. While this solves one scalability-related problem (storage), it doesn't solve the CPU/memory, latency and bandwidth problems for validators and full nodes. However, it could have still been marketed as a "P2P cash" because people like to install "light" cryptocurrency wallet software, and they even would have owned a full node then, with a few 100s of MBs of chain data ...
It's actually the only cryptocurrency I contributed to, with a very small bug fix.
So the approach here to find "gems" in dead and low-cap coins seems reasonable to me
The USP of this coin is that it was the first coin which applied the so called "mini blockchain scheme". This allows to store only a relatively small part of the blockchain to validate transactions. A very similar approach has been followed, much later, by Kaspa. While this solves one scalability-related problem (storage), it doesn't solve the CPU/memory, latency and bandwidth problems for validators and full nodes. However, it could have still been marketed as a "P2P cash" because people like to install "light" cryptocurrency wallet software, and they even would have owned a full node then, with a few 100s of MBs of chain data ...
It's actually the only cryptocurrency I contributed to, with a very small bug fix.
It is much easier to list those coins that are still alive.
You know there are more than 100,000 coins out there? Even Coinmarketcap lists more than 33k So the approach here to find "gems" in dead and low-cap coins seems reasonable to me