Cross Platform Derminism

[spindizzyio]

Is this .js version also cross platform deterministic?

[jrouwe]

It is cross platform deterministic if you build it yourself using:

./build.sh Distribution -DCROSS_PLATFORM_DETERMINISTIC=ON

This is verified in CI here running with nodejs on Linux and comparing it with the C++ version across all other supported platforms.

There are a number of caveats though:

• I haven't tested if all browsers produce the same hash, there may be differences in their WASM implementation
• This only tests if the library is deterministic, I don't know if JavaScript itself is deterministic across platforms/browsers. For example, in C++ the sin() function is different between platforms and similar things may be present in the JavaScript libraries. Take a look at the Jolt documentation for other things that were an issue in the C++ standard libraries.