Bitcoin Forum

I recently read an article about the basis of creation of new crypto currencies and I discovered it is all about programing where you could create your block chain, modify an existing Blockchain or make your based on an existing one.
I am only not clear with what happens to your crypto if you based it on an existing Blockchain and that block chain eventually crumbles?

Then the blockchain you made will simply cease to exist. A blockchain having zero nodes running is just like deleting a file or like a torrent file reaching zero seeders.

If you made a token on a blockchain and that blockchain stopped being "maintained" (ie mined) the value of your token would have probably become worthless before the chain did. If it didn't, you'd be able to take a snapshot of the blockchain at a time and tell everyone their coins are available on a different chain (most snapshots are announced before they occur to stop actors like exchanges from stealing money, but they don't have to be).

Your crypto will become worthless or lose value if the main blockchain crumbles because the underlying blockchain support no longer exists and there is no assurance that your crypto will survive.

However, it may be necessary to migrate your crypto to another blockchain or network to make sure it's survival like other coins out there they migrate to ERC20 or TRC20 to survive.

what is clear is your crypto is still there, you can still watch and track it, but don't have a value like other members said above.
Maybe true that other experts said, if you save the file on blockchain, your file is saved forever until doomsday or internet shut down.