It's hacker attitude. Build what seems like it will work, and launch.
The true flaw of hacker attitude is underestimation of the job by focusing on the part that looks straightforward, namely the part in code.
A bitcoin bank is the application. The bit that's written in code is just a part of it. The actual spec is: under all circumstances, this will either work as a bitcoin bank, or fail safe, or in the worst possible case fail with data loss. That spec requires you to examine the behaviors of the system as a system - you may be sure your opponents see it as such.
The true flaw of hacker attitude is underestimation of the job by focusing on the part that looks straightforward, namely the part in code.
A bitcoin bank is the application. The bit that's written in code is just a part of it. The actual spec is: under all circumstances, this will either work as a bitcoin bank, or fail safe, or in the worst possible case fail with data loss. That spec requires you to examine the behaviors of the system as a system - you may be sure your opponents see it as such.